Showing posts with label linux memory usage. Show all posts
Showing posts with label linux memory usage. Show all posts

Tuesday, May 21, 2013

How do you show the processes that are running in linux under a command line?

Q. And, how do you show how much memory and cpu each is using?

A. Check out the manpage for ps. The most common syntax is "ps auxww" which will show PID, CPU usage, Memory usage, process name, etc for each process that is running on your system. "top" shows real time information and ranks processes by their CPU/RAM usage.

What slows down computers besides memory usage?
Q. I just deleted a whole lot from my laptop, and I ran a 'defragmentation' on the hard-drive, but it's still going really slow. Any ideas?
More detail: It's slow to open programs or new windows. There's a delay between when I click an icon and when the window opens.

A. Are you familiar with the Task manager? (Ctrl+Alt+Delete) The task manager will show you which processes are using you processor power and how much virtual memory.

What version of Windozes? Have you tried using a registry cleaner? Do you have a reliable anti-virus?

When I used to use Windozes, I had to wipe it about every 6 months and start over. It just seemed to get unstable after prolonged use. I now use Ubuntu Linux.

What operating system should i install on a VERY old computer?
Q. The computer again is extremely old, ie 5-6 years (integrated graphics, 1 gig ram, pentium processor, etc). Now i want to find an OS that is both simple to use and one that will run efficiently, especially for viewing photos and movies (obviously this is bottle-necked by hardware, but there should be differences in memory and cpu usage from OS to OS),

So what do you suggest? the new chrome OS, win XP, ubuntu?

A. Old machines run best on what they were designed for, But time marches on and computer os support runs out of steam. If your machine was designed for XP os then use it, upgrade as much of the hardware as economical and go from there. You may find it would be best to purchase a new machine rather then try to upgrade on your own. If that is not an option and you are determined then you should start with the memory, then the video card. If your machine is at least a P4 running at close to 2.0GHz then you will have a chance depending on your technical ability. If not then you should shop the internet for a used system that is within the price range of what you are going to spend on upgrading your machine. To answer your question Google Chrome OS is only to be used for the modern netbooks (condensed and stripped down laptop computers), Win XP was most likely the OS that was installed at the factory on your machine, and Linux Ubuntu is free and open source software.... XP is my choice



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Saturday, May 4, 2013

How to measure the performance of an Linux C application?

Q. I have written a C code, which uses fread, fwrite,. I want to measure the performance like No_Of_Blocks read and written by the application. disk usage, memory usage etc. Is there any tool to measure the performance of an application in linux?

A. lets see:
You can measure CPU performance using /proc/cpu. You can measure ethernet performance by using /sbin/ifconfig <eth_port>. You can use df to track data written to a filesystem/mountpoint. Take a before and after snapshot using the tool of choice and determine the metric you wish to measure.

What is the corresponding free command on an AIX machine?
Q. I'm programming on a machine running IBM AIX version 6.1. I'm trying to profile the memory usage so I'm looking for a command similar to the free command on Linux distributions. Help

A. svmon and vmstat

How do you show the processes that are running in linux under a command line?
Q. And, how do you show how much memory and cpu each is using?

A. Check out the manpage for ps. The most common syntax is "ps auxww" which will show PID, CPU usage, Memory usage, process name, etc for each process that is running on your system. "top" shows real time information and ranks processes by their CPU/RAM usage.



Nec Projector Review

Plastic Shed Reviews

Ati Graphic Reviews

Nurse Uniforms Reviews

Cabochons Reviews

Inflatable Water Slides Reviews

Barcode Scanner Reviews

Sunday, April 7, 2013

What is the corresponding free command on an AIX machine?

Q. I'm programming on a machine running IBM AIX version 6.1. I'm trying to profile the memory usage so I'm looking for a command similar to the free command on Linux distributions. Help

A. svmon and vmstat

How do you show the processes that are running in linux under a command line?
Q. And, how do you show how much memory and cpu each is using?

A. Check out the manpage for ps. The most common syntax is "ps auxww" which will show PID, CPU usage, Memory usage, process name, etc for each process that is running on your system. "top" shows real time information and ranks processes by their CPU/RAM usage.

What slows down computers besides memory usage?
Q. I just deleted a whole lot from my laptop, and I ran a 'defragmentation' on the hard-drive, but it's still going really slow. Any ideas?
More detail: It's slow to open programs or new windows. There's a delay between when I click an icon and when the window opens.

A. Are you familiar with the Task manager? (Ctrl+Alt+Delete) The task manager will show you which processes are using you processor power and how much virtual memory.

What version of Windozes? Have you tried using a registry cleaner? Do you have a reliable anti-virus?

When I used to use Windozes, I had to wipe it about every 6 months and start over. It just seemed to get unstable after prolonged use. I now use Ubuntu Linux.



Nec Projector Review

Plastic Shed Reviews

Ati Graphic Reviews

Nurse Uniforms Reviews

Cabochons Reviews

Inflatable Water Slides Reviews

Barcode Scanner Reviews

Friday, March 1, 2013

What Linux operating system can you use to install Windows-based software right away with no software used?

Q. For example, Ubuntu needs a program called Wine to install Windows-based software. So is there another Linux OS that can install them right away? And if so, whats the lowest Linux OS memory usage?

A. Linux is Linux, Windows is Windows, the code base are different so theres no such thing, if there were, one would think no one would buy Windows anymore wont you ?

Is there a free app to monitor your system activities on Windows 7?
Q. I would like to monitor my network activities, memory usage, and other processes.
Something like the activity monitor that Mac OS X and Linux have? Please and thank you :)

A. I'm not sure if this is what you mean but there is a task manager.
Press Ctrl>Alt>Delete then select start task manager
:)

How to measure the performance of an Linux C application?
Q. I have written a C code, which uses fread, fwrite,. I want to measure the performance like No_Of_Blocks read and written by the application. disk usage, memory usage etc. Is there any tool to measure the performance of an application in linux?

A. lets see:
You can measure CPU performance using /proc/cpu. You can measure ethernet performance by using /sbin/ifconfig <eth_port>. You can use df to track data written to a filesystem/mountpoint. Take a before and after snapshot using the tool of choice and determine the metric you wish to measure.



Nec Projector Review

Plastic Shed Reviews

Ati Graphic Reviews

Nurse Uniforms Reviews

Cabochons Reviews

Inflatable Water Slides Reviews

Barcode Scanner Reviews

Wednesday, February 20, 2013

What is the corresponding free command on an AIX machine?

Q. I'm programming on a machine running IBM AIX version 6.1. I'm trying to profile the memory usage so I'm looking for a command similar to the free command on Linux distributions. Help

A. svmon and vmstat

How do you show the processes that are running in linux under a command line?
Q. And, how do you show how much memory and cpu each is using?

A. Check out the manpage for ps. The most common syntax is "ps auxww" which will show PID, CPU usage, Memory usage, process name, etc for each process that is running on your system. "top" shows real time information and ranks processes by their CPU/RAM usage.

What slows down computers besides memory usage?
Q. I just deleted a whole lot from my laptop, and I ran a 'defragmentation' on the hard-drive, but it's still going really slow. Any ideas?
More detail: It's slow to open programs or new windows. There's a delay between when I click an icon and when the window opens.

A. Are you familiar with the Task manager? (Ctrl+Alt+Delete) The task manager will show you which processes are using you processor power and how much virtual memory.

What version of Windozes? Have you tried using a registry cleaner? Do you have a reliable anti-virus?

When I used to use Windozes, I had to wipe it about every 6 months and start over. It just seemed to get unstable after prolonged use. I now use Ubuntu Linux.



Nec Projector Review

Plastic Shed Reviews

Ati Graphic Reviews

Nurse Uniforms Reviews

Cabochons Reviews

Inflatable Water Slides Reviews

Barcode Scanner Reviews

Tuesday, February 12, 2013

What slows down computers besides memory usage?

Q. I just deleted a whole lot from my laptop, and I ran a 'defragmentation' on the hard-drive, but it's still going really slow. Any ideas?
More detail: It's slow to open programs or new windows. There's a delay between when I click an icon and when the window opens.

A. Are you familiar with the Task manager? (Ctrl+Alt+Delete) The task manager will show you which processes are using you processor power and how much virtual memory.

What version of Windozes? Have you tried using a registry cleaner? Do you have a reliable anti-virus?

When I used to use Windozes, I had to wipe it about every 6 months and start over. It just seemed to get unstable after prolonged use. I now use Ubuntu Linux.

What operating system should i install on a VERY old computer?
Q. The computer again is extremely old, ie 5-6 years (integrated graphics, 1 gig ram, pentium processor, etc). Now i want to find an OS that is both simple to use and one that will run efficiently, especially for viewing photos and movies (obviously this is bottle-necked by hardware, but there should be differences in memory and cpu usage from OS to OS),

So what do you suggest? the new chrome OS, win XP, ubuntu?

A. Old machines run best on what they were designed for, But time marches on and computer os support runs out of steam. If your machine was designed for XP os then use it, upgrade as much of the hardware as economical and go from there. You may find it would be best to purchase a new machine rather then try to upgrade on your own. If that is not an option and you are determined then you should start with the memory, then the video card. If your machine is at least a P4 running at close to 2.0GHz then you will have a chance depending on your technical ability. If not then you should shop the internet for a used system that is within the price range of what you are going to spend on upgrading your machine. To answer your question Google Chrome OS is only to be used for the modern netbooks (condensed and stripped down laptop computers), Win XP was most likely the OS that was installed at the factory on your machine, and Linux Ubuntu is free and open source software.... XP is my choice

Should install Linux and get rid of Windows Vista?
Q. Ok So I have a laptop and have Installed Windows Home Premium; I am wondering what is Linux? I do not know yet but I am wondering if I should install Linux and un-install Windows Vista? Please, someone Help, Should I? Which one is Better?

A. Linux Ubuntu +++++++++++

I am so glad to get rid of the intrusiveness of Windows Vista. Linux belongs to the user. not the other way around. No agreements to sign, no automatic updates that pull the rug out from under your feet, so you are forced to buy new computers. No need for expensive protection systems. It is like having a brand new computer. After having most of my memory wasted with access systems, and then finding out that they not only did not work, but just took up space, and then being denied access to get rid of them.......

You can load Ubuntu through your Windows system and try it out for free, as a separate operating system on the same computer. If you are not impressed. Just delete it. Try doing that with Window. Windows is in charge of your usage with it's system. You are in charge of your system with Ubuntu, Lenox.

If you get the disc, which is absolutely free, including postage, you can erase windows and all of it's quirks from your computer, and have ten times as much memory available with the same number of programs.



Nec Projector Review

Plastic Shed Reviews

Ati Graphic Reviews

Nurse Uniforms Reviews

Cabochons Reviews

Inflatable Water Slides Reviews

Barcode Scanner Reviews

Sunday, February 3, 2013

How do you show the processes that are running in linux under a command line?

Q. And, how do you show how much memory and cpu each is using?

A. Check out the manpage for ps. The most common syntax is "ps auxww" which will show PID, CPU usage, Memory usage, process name, etc for each process that is running on your system. "top" shows real time information and ranks processes by their CPU/RAM usage.

What slows down computers besides memory usage?
Q. I just deleted a whole lot from my laptop, and I ran a 'defragmentation' on the hard-drive, but it's still going really slow. Any ideas?
More detail: It's slow to open programs or new windows. There's a delay between when I click an icon and when the window opens.

A. Are you familiar with the Task manager? (Ctrl+Alt+Delete) The task manager will show you which processes are using you processor power and how much virtual memory.

What version of Windozes? Have you tried using a registry cleaner? Do you have a reliable anti-virus?

When I used to use Windozes, I had to wipe it about every 6 months and start over. It just seemed to get unstable after prolonged use. I now use Ubuntu Linux.

What operating system should i install on a VERY old computer?
Q. The computer again is extremely old, ie 5-6 years (integrated graphics, 1 gig ram, pentium processor, etc). Now i want to find an OS that is both simple to use and one that will run efficiently, especially for viewing photos and movies (obviously this is bottle-necked by hardware, but there should be differences in memory and cpu usage from OS to OS),

So what do you suggest? the new chrome OS, win XP, ubuntu?

A. Old machines run best on what they were designed for, But time marches on and computer os support runs out of steam. If your machine was designed for XP os then use it, upgrade as much of the hardware as economical and go from there. You may find it would be best to purchase a new machine rather then try to upgrade on your own. If that is not an option and you are determined then you should start with the memory, then the video card. If your machine is at least a P4 running at close to 2.0GHz then you will have a chance depending on your technical ability. If not then you should shop the internet for a used system that is within the price range of what you are going to spend on upgrading your machine. To answer your question Google Chrome OS is only to be used for the modern netbooks (condensed and stripped down laptop computers), Win XP was most likely the OS that was installed at the factory on your machine, and Linux Ubuntu is free and open source software.... XP is my choice



Nec Projector Review

Plastic Shed Reviews

Ati Graphic Reviews

Nurse Uniforms Reviews

Cabochons Reviews

Inflatable Water Slides Reviews

Barcode Scanner Reviews

Thursday, January 31, 2013

What is the corresponding free command on an AIX machine?

Q. I'm programming on a machine running IBM AIX version 6.1. I'm trying to profile the memory usage so I'm looking for a command similar to the free command on Linux distributions. Help

A. svmon and vmstat

How do you show the processes that are running in linux under a command line?
Q. And, how do you show how much memory and cpu each is using?

A. Check out the manpage for ps. The most common syntax is "ps auxww" which will show PID, CPU usage, Memory usage, process name, etc for each process that is running on your system. "top" shows real time information and ranks processes by their CPU/RAM usage.

What slows down computers besides memory usage?
Q. I just deleted a whole lot from my laptop, and I ran a 'defragmentation' on the hard-drive, but it's still going really slow. Any ideas?
More detail: It's slow to open programs or new windows. There's a delay between when I click an icon and when the window opens.

A. Are you familiar with the Task manager? (Ctrl+Alt+Delete) The task manager will show you which processes are using you processor power and how much virtual memory.

What version of Windozes? Have you tried using a registry cleaner? Do you have a reliable anti-virus?

When I used to use Windozes, I had to wipe it about every 6 months and start over. It just seemed to get unstable after prolonged use. I now use Ubuntu Linux.



Nec Projector Review

Plastic Shed Reviews

Ati Graphic Reviews

Nurse Uniforms Reviews

Cabochons Reviews

Inflatable Water Slides Reviews

Barcode Scanner Reviews

Should install Linux and get rid of Windows Vista?

Q. Ok So I have a laptop and have Installed Windows Home Premium; I am wondering what is Linux? I do not know yet but I am wondering if I should install Linux and un-install Windows Vista? Please, someone Help, Should I? Which one is Better?

A. Linux Ubuntu +++++++++++

I am so glad to get rid of the intrusiveness of Windows Vista. Linux belongs to the user. not the other way around. No agreements to sign, no automatic updates that pull the rug out from under your feet, so you are forced to buy new computers. No need for expensive protection systems. It is like having a brand new computer. After having most of my memory wasted with access systems, and then finding out that they not only did not work, but just took up space, and then being denied access to get rid of them.......

You can load Ubuntu through your Windows system and try it out for free, as a separate operating system on the same computer. If you are not impressed. Just delete it. Try doing that with Window. Windows is in charge of your usage with it's system. You are in charge of your system with Ubuntu, Lenox.

If you get the disc, which is absolutely free, including postage, you can erase windows and all of it's quirks from your computer, and have ten times as much memory available with the same number of programs.

What Norton Antivirus product should I buy for protecting 6 server machines running windows 2003?
Q. I'd rather run Linux but.. some government people, probably don't know much about computers at all, are forcing us to use Windows.

They want Norton protecting all of them, despite only two of the machines being externally visible.

A. There is a corporate version of Norton Antivirus that has a much smaller memory/cpu usage footprint than the normal retail versions. Its just Symantec Antivirus 11.0. However, they now call it Symantec Endpoint Protection. I'd go with that to keep it simple.

Does vista use different amounts of RAM depending on how much there is?
Q. My vista laptop uses just under 50% when doing nothing and has 3gigs of RAM but my desktop uses also just under 50% when doing nothing and has 2 gigs of RAM. Does vista use the more RAM the more there is? Or is there another reson for the differences in RAM usage?

A. Yes. And this is true of all NT-derived versions of Windows (NT, 2000, XP, 2003, Vista), although Vista is a bit more proactive about prefetching (and this is why people think it's a "memory hog").

And all other modern virtual memory OSs too (MacOS, Linux, BSD, etc.

However the amount of "RAM used" is misleading. The "RAM used" does not mean there is a permanent commitment to the present uses. If something else needs the RAM, things that are "using" it now can be trimmed back and give it up very quickly.

In the case of the file cache, the RAM used by prefetched file data can be released for other use just as quickly as if the prefetching had not happened at all.

So a lot more RAM is really available to, say, a new app, or to meet a sudden need by an already-running app, than you might think.

edit - Windows Sidebar? Nah. At the moment, in my 8 GB (Vista x64) machine here, Sidebar is using all of 30 MB RAM. Granted I have no gadgets except the default MSN news thing. This is the "Working set (memory)" column in Task Manager - used to be called "Mem usage".

The biggest memory user in Vista that you can easily do without is dwm.exe, the "desktop window manager". You get rid of this by disabling Aero. This loses you the transparency at the edges of windows, the live windows displays in "cool task switching" (alt-tab) and in the taskbar, etc. Even so, though, dwm.exe is like nearly everything else - it's only allowed to bloat when there's plenty of free RAM to bloat into. If something else starts up and needs some RAM, dwm.exe and everything else get trimmed back to make room.



Nec Projector Review

Plastic Shed Reviews

Ati Graphic Reviews

Nurse Uniforms Reviews

Cabochons Reviews

Inflatable Water Slides Reviews

Barcode Scanner Reviews

What operating system should i install on a VERY old computer?

Q. The computer again is extremely old, ie 5-6 years (integrated graphics, 1 gig ram, pentium processor, etc). Now i want to find an OS that is both simple to use and one that will run efficiently, especially for viewing photos and movies (obviously this is bottle-necked by hardware, but there should be differences in memory and cpu usage from OS to OS),

So what do you suggest? the new chrome OS, win XP, ubuntu?

A. Old machines run best on what they were designed for, But time marches on and computer os support runs out of steam. If your machine was designed for XP os then use it, upgrade as much of the hardware as economical and go from there. You may find it would be best to purchase a new machine rather then try to upgrade on your own. If that is not an option and you are determined then you should start with the memory, then the video card. If your machine is at least a P4 running at close to 2.0GHz then you will have a chance depending on your technical ability. If not then you should shop the internet for a used system that is within the price range of what you are going to spend on upgrading your machine. To answer your question Google Chrome OS is only to be used for the modern netbooks (condensed and stripped down laptop computers), Win XP was most likely the OS that was installed at the factory on your machine, and Linux Ubuntu is free and open source software.... XP is my choice

Should install Linux and get rid of Windows Vista?
Q. Ok So I have a laptop and have Installed Windows Home Premium; I am wondering what is Linux? I do not know yet but I am wondering if I should install Linux and un-install Windows Vista? Please, someone Help, Should I? Which one is Better?

A. Linux Ubuntu +++++++++++

I am so glad to get rid of the intrusiveness of Windows Vista. Linux belongs to the user. not the other way around. No agreements to sign, no automatic updates that pull the rug out from under your feet, so you are forced to buy new computers. No need for expensive protection systems. It is like having a brand new computer. After having most of my memory wasted with access systems, and then finding out that they not only did not work, but just took up space, and then being denied access to get rid of them.......

You can load Ubuntu through your Windows system and try it out for free, as a separate operating system on the same computer. If you are not impressed. Just delete it. Try doing that with Window. Windows is in charge of your usage with it's system. You are in charge of your system with Ubuntu, Lenox.

If you get the disc, which is absolutely free, including postage, you can erase windows and all of it's quirks from your computer, and have ten times as much memory available with the same number of programs.

Does vista use different amounts of RAM depending on how much there is?
Q. My vista laptop uses just under 50% when doing nothing and has 3gigs of RAM but my desktop uses also just under 50% when doing nothing and has 2 gigs of RAM. Does vista use the more RAM the more there is? Or is there another reson for the differences in RAM usage?

A. Yes. And this is true of all NT-derived versions of Windows (NT, 2000, XP, 2003, Vista), although Vista is a bit more proactive about prefetching (and this is why people think it's a "memory hog").

And all other modern virtual memory OSs too (MacOS, Linux, BSD, etc.

However the amount of "RAM used" is misleading. The "RAM used" does not mean there is a permanent commitment to the present uses. If something else needs the RAM, things that are "using" it now can be trimmed back and give it up very quickly.

In the case of the file cache, the RAM used by prefetched file data can be released for other use just as quickly as if the prefetching had not happened at all.

So a lot more RAM is really available to, say, a new app, or to meet a sudden need by an already-running app, than you might think.

edit - Windows Sidebar? Nah. At the moment, in my 8 GB (Vista x64) machine here, Sidebar is using all of 30 MB RAM. Granted I have no gadgets except the default MSN news thing. This is the "Working set (memory)" column in Task Manager - used to be called "Mem usage".

The biggest memory user in Vista that you can easily do without is dwm.exe, the "desktop window manager". You get rid of this by disabling Aero. This loses you the transparency at the edges of windows, the live windows displays in "cool task switching" (alt-tab) and in the taskbar, etc. Even so, though, dwm.exe is like nearly everything else - it's only allowed to bloat when there's plenty of free RAM to bloat into. If something else starts up and needs some RAM, dwm.exe and everything else get trimmed back to make room.



Nec Projector Review

Plastic Shed Reviews

Ati Graphic Reviews

Nurse Uniforms Reviews

Cabochons Reviews

Inflatable Water Slides Reviews

Barcode Scanner Reviews

Wednesday, January 30, 2013

What slows down computers besides memory usage?

Q. I just deleted a whole lot from my laptop, and I ran a 'defragmentation' on the hard-drive, but it's still going really slow. Any ideas?
More detail: It's slow to open programs or new windows. There's a delay between when I click an icon and when the window opens.

A. Are you familiar with the Task manager? (Ctrl+Alt+Delete) The task manager will show you which processes are using you processor power and how much virtual memory.

What version of Windozes? Have you tried using a registry cleaner? Do you have a reliable anti-virus?

When I used to use Windozes, I had to wipe it about every 6 months and start over. It just seemed to get unstable after prolonged use. I now use Ubuntu Linux.

What operating system should i install on a VERY old computer?
Q. The computer again is extremely old, ie 5-6 years (integrated graphics, 1 gig ram, pentium processor, etc). Now i want to find an OS that is both simple to use and one that will run efficiently, especially for viewing photos and movies (obviously this is bottle-necked by hardware, but there should be differences in memory and cpu usage from OS to OS),

So what do you suggest? the new chrome OS, win XP, ubuntu?

A. Old machines run best on what they were designed for, But time marches on and computer os support runs out of steam. If your machine was designed for XP os then use it, upgrade as much of the hardware as economical and go from there. You may find it would be best to purchase a new machine rather then try to upgrade on your own. If that is not an option and you are determined then you should start with the memory, then the video card. If your machine is at least a P4 running at close to 2.0GHz then you will have a chance depending on your technical ability. If not then you should shop the internet for a used system that is within the price range of what you are going to spend on upgrading your machine. To answer your question Google Chrome OS is only to be used for the modern netbooks (condensed and stripped down laptop computers), Win XP was most likely the OS that was installed at the factory on your machine, and Linux Ubuntu is free and open source software.... XP is my choice

How to find my Linux System Information?
Q. I know how to find it on Windows. But how do I find my system information on Linux Operating system. Thanks.

A. Open the command prompt, it might be known as Terminal. The following commands will allow you to find your system information.

System Information
archPrint machine architecture.
df Shows disk free space.
duShows disk usage.
freeDisplay used and free memory on the system.
ipcrmProvide information on ipc facilities.
ipcsSame as ipcrm.
lsdevDisplay information about installed hardware via files in the /proc directory.
lsofList open files.
lspciList PCI devices .
pnpdumpLists ISA plug and play devices resource information.
procinfoDisplay system status gathered from proc.
pstreeDisplay a tree of processes.
runlevelFind the current and previous system runlevel.
straceTrace ssytem calls and signals for a binary program.
sttyChange and print terminal line settings.
tloadPrints a graphic representation of the system load average.
ttyPrint the filename of the terminal connected to standard input.
unamePrint system information, Prints Linux.
vmstatReport virtual memory statistics.
xcpustateDisplays CPU states (idle, nice, system, kernel) statistics. Runs in X?

Knowing what distribution you use would be helpful. If you need more help I'd recommend looking at the website of the distribution you use.



Nec Projector Review

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Nurse Uniforms Reviews

Cabochons Reviews

Inflatable Water Slides Reviews

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Monday, January 28, 2013

Should install Linux and get rid of Windows Vista?

Q. Ok So I have a laptop and have Installed Windows Home Premium; I am wondering what is Linux? I do not know yet but I am wondering if I should install Linux and un-install Windows Vista? Please, someone Help, Should I? Which one is Better?

A. Linux Ubuntu +++++++++++

I am so glad to get rid of the intrusiveness of Windows Vista. Linux belongs to the user. not the other way around. No agreements to sign, no automatic updates that pull the rug out from under your feet, so you are forced to buy new computers. No need for expensive protection systems. It is like having a brand new computer. After having most of my memory wasted with access systems, and then finding out that they not only did not work, but just took up space, and then being denied access to get rid of them.......

You can load Ubuntu through your Windows system and try it out for free, as a separate operating system on the same computer. If you are not impressed. Just delete it. Try doing that with Window. Windows is in charge of your usage with it's system. You are in charge of your system with Ubuntu, Lenox.

If you get the disc, which is absolutely free, including postage, you can erase windows and all of it's quirks from your computer, and have ten times as much memory available with the same number of programs.

Does vista use different amounts of RAM depending on how much there is?
Q. My vista laptop uses just under 50% when doing nothing and has 3gigs of RAM but my desktop uses also just under 50% when doing nothing and has 2 gigs of RAM. Does vista use the more RAM the more there is? Or is there another reson for the differences in RAM usage?

A. Yes. And this is true of all NT-derived versions of Windows (NT, 2000, XP, 2003, Vista), although Vista is a bit more proactive about prefetching (and this is why people think it's a "memory hog").

And all other modern virtual memory OSs too (MacOS, Linux, BSD, etc.

However the amount of "RAM used" is misleading. The "RAM used" does not mean there is a permanent commitment to the present uses. If something else needs the RAM, things that are "using" it now can be trimmed back and give it up very quickly.

In the case of the file cache, the RAM used by prefetched file data can be released for other use just as quickly as if the prefetching had not happened at all.

So a lot more RAM is really available to, say, a new app, or to meet a sudden need by an already-running app, than you might think.

edit - Windows Sidebar? Nah. At the moment, in my 8 GB (Vista x64) machine here, Sidebar is using all of 30 MB RAM. Granted I have no gadgets except the default MSN news thing. This is the "Working set (memory)" column in Task Manager - used to be called "Mem usage".

The biggest memory user in Vista that you can easily do without is dwm.exe, the "desktop window manager". You get rid of this by disabling Aero. This loses you the transparency at the edges of windows, the live windows displays in "cool task switching" (alt-tab) and in the taskbar, etc. Even so, though, dwm.exe is like nearly everything else - it's only allowed to bloat when there's plenty of free RAM to bloat into. If something else starts up and needs some RAM, dwm.exe and everything else get trimmed back to make room.

What are some examples of self-dependent binaries?
Q. I want games that work on linux and that are "self-dependent binaries". Someone please give examples of games that fit this criteria: linux platform/cross, self-dependent binary, and take up small amount of disk space. Also, can someone explain what a self-dependent binary program is. All I know is a program that is a self-dependent binary does not require extra or very many resources from the operating system, other than that I don't know much.

A. I think you mean "static binary", not "self-dependent binary." A "static binary" does not require any external libraries to be installed (it does NOT mean that it it uses less resources, just that it has it's own copy of such resources). Static binaries are actually fairly wasteful as far as memory usage goes.

It's probably impossible to give a list of such games, as making binaries static is a compile-time option, and relatively uncommon. You can "convert" most binaries into static binaries with a tool like Statifier or Ermine.

http://statifier.sourceforge.net/
http://www.magicermine.com/index.html



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Sunday, January 27, 2013

Does vista use different amounts of RAM depending on how much there is?

Q. My vista laptop uses just under 50% when doing nothing and has 3gigs of RAM but my desktop uses also just under 50% when doing nothing and has 2 gigs of RAM. Does vista use the more RAM the more there is? Or is there another reson for the differences in RAM usage?

A. Yes. And this is true of all NT-derived versions of Windows (NT, 2000, XP, 2003, Vista), although Vista is a bit more proactive about prefetching (and this is why people think it's a "memory hog").

And all other modern virtual memory OSs too (MacOS, Linux, BSD, etc.

However the amount of "RAM used" is misleading. The "RAM used" does not mean there is a permanent commitment to the present uses. If something else needs the RAM, things that are "using" it now can be trimmed back and give it up very quickly.

In the case of the file cache, the RAM used by prefetched file data can be released for other use just as quickly as if the prefetching had not happened at all.

So a lot more RAM is really available to, say, a new app, or to meet a sudden need by an already-running app, than you might think.

edit - Windows Sidebar? Nah. At the moment, in my 8 GB (Vista x64) machine here, Sidebar is using all of 30 MB RAM. Granted I have no gadgets except the default MSN news thing. This is the "Working set (memory)" column in Task Manager - used to be called "Mem usage".

The biggest memory user in Vista that you can easily do without is dwm.exe, the "desktop window manager". You get rid of this by disabling Aero. This loses you the transparency at the edges of windows, the live windows displays in "cool task switching" (alt-tab) and in the taskbar, etc. Even so, though, dwm.exe is like nearly everything else - it's only allowed to bloat when there's plenty of free RAM to bloat into. If something else starts up and needs some RAM, dwm.exe and everything else get trimmed back to make room.

What are some examples of self-dependent binaries?
Q. I want games that work on linux and that are "self-dependent binaries". Someone please give examples of games that fit this criteria: linux platform/cross, self-dependent binary, and take up small amount of disk space. Also, can someone explain what a self-dependent binary program is. All I know is a program that is a self-dependent binary does not require extra or very many resources from the operating system, other than that I don't know much.

A. I think you mean "static binary", not "self-dependent binary." A "static binary" does not require any external libraries to be installed (it does NOT mean that it it uses less resources, just that it has it's own copy of such resources). Static binaries are actually fairly wasteful as far as memory usage goes.

It's probably impossible to give a list of such games, as making binaries static is a compile-time option, and relatively uncommon. You can "convert" most binaries into static binaries with a tool like Statifier or Ermine.

http://statifier.sourceforge.net/
http://www.magicermine.com/index.html

What is the BEST version of Linux for an old laptop that had Windows 98 and was upgraded to XP?
Q. What is the BEST version of Linux for an old laptop that had Windows 98 and was upgraded to Windows XP? I have a 3.7 GB hard drive, with about 600 MB free. What version of Linux should I use and where do I download it?
Thanks everyone. I have finally decided. I ordered 3 CDs of UBUNTU, 1 CD of KUBUNTU, and 1 CD of EDUBUNTU. They will be at my home in 6-10 weeks. Then, I will use them as Live CDs, then pick the best one, and install it onto my laptop.

A. With the small amount of free disk, you could only use it as a server, not as a graphic desktop. 600 Mb is the necessary space for that, but you cannot run graphic applications. For a desktop installation you will need at least 1 gig. The best is 2 gigs and up.
I would encourage you to take the entire disk for a Linux installation because if you decide to upgrade Windows XP, it will probably demand more and more space until you will get out of space for your files.
If you decide to do so, First, backup all your files, then, you may divide the disk with 2 partitions: root with maybe 2.5 gigs and the rest of the space make a partition for "home" where your documents reside.
Also for light desktop environments, instead of KDE or Gnome, you should use XFCE or IceWM or Fluxbox, which don´t demand as much memory resources.
You don´t say the amount of RAM or Processor in your machine. Ubuntu and its derivatives needs at least 256 Mb 700mhz processor, maybe 128mb ram should do good. According to Ubuntu forum these are requirements for installation:

Minimum requirements
300 MHz x86 processor, 64 MB of system memory (RAM), at least 2 GB of disk space (for full installation and swap space), VGA graphics card capable of 640x480 resolution, *CD-ROM drive. If your system has less than 192 MB of system memory, use the Alternate Installation CD.
Recommended minimum requirements
500 MHz x86 processor, 192 MB of system memory (RAM), *8 GB of disk space, Graphics card capable of 1024x768 resolution, Sound card, A network or Internet connection


However, I discovered that in some old machines it doesn´t boot or it may be particularly slow. Also, Ubuntu is designed for kind of new machines, depending on your skills, you might tweak I think.
I recommend you these distros that I have used in old machines, first of all, KANOTIX. Kanotix is designed in such a way that you may install in very old machines as well as in i686. I installed in a Dell Inspiron Lr500 with 10 Gigs harddrive, RAM 256 Mb (later upgraded to 512), 500 Mhz Intel Coppermine processor. That PC was manufactured in 1999 and it rocks with Kanotix.
Another option is Mepis 3.1 I installed on a very old computer that even has ISA´s from 1998 and it works good.
Other options that do not require much space and offer some limited applications, are:
Damn Small linux: DSL is a very versatile 50MB mini desktop oriented Linux distribution.

Damn Small is small enough and smart enough to do the following things:

* Boot from a business card CD as a live linux distribution (LiveCD)
* Boot from a USB pen drive
* Boot from within a host operating system (that's right, it can run *inside* Windows)
* Run very nicely from an IDE Compact Flash drive via a method we call "frugal install"
* Transform into a Debian OS with a traditional hard drive install
* Run light enough to power a 486DX with 16MB of Ram
* Run fully in RAM with as little as 128MB (you will be amazed at how fast your computer can be!)
* Modularly grow -- DSL is highly extendable without the need to customize

Mepis: MEPISLite is designed for home users with modest hardware and as an easy way to upgrade from Windows 98. It also provides an alternative to Windows for preinstallation on new computers. MEPISLite contains many of the same programs and features as SimplyMEPIS, with some changes to improve performance on older machines. The most notable changes are that MEPISLite contains KOffice instead of OpenOffice, and Konquerer is the recommended web browser.


Deli Linux: DeLi Linux stands for "Desktop Light" Linux. It is a Linux Distribution for old computers, from 486 to Pentium II or so. It's focused on desktop usage. It includes email clients, graphical web browser, an office programs with word processor and spreadsheet, and so on. A full install, including XOrg and development tools, needs not more than 350 MB of harddisk space.

The trick is, that DeLi Linux uses only "lightweight" alternative software. If you are looking for the newest KDE, GNOME or Mozilla, DeLi Linux will not make you happy. The test computer is a 486 laptop with 16 MB RAM, and all apps which comes with DeLi Linux are running smoothly.

Puppy Linux: Puppy Linux, started by Barry Kauler, is a small, fully featured Linux distribution. Puppy works swiftly on older systems and is a delight on modern computers including ThinPCs. Puppy boots to a familiar environment for ex-Windows users. Puppy is regularly updated and is well supported and documented. Barry keeps in close contact with users and developers.
If booting from CD, Puppy carries on working even after the CD is removed. Run Puppy from a flash card, or hard disk or USB keydrive/flash drive or a recordable CD/DVD, saving and updating your files on the CD-R or DVD-R. Puppy boots into as small as a 64MB ramdisk. Puppy runs from RAM memory with applications such as the Seamonkey web browser, AbiWord word processor, gFTP client, Gnumeric spreadsheet and a superior set of programs with more available as simple free downloads. Applications start in the blink of an eye and respond to users instantly.

Well, I hope my answer helps you,
Good luck.



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What is the corresponding free command on an AIX machine?

Q. I'm programming on a machine running IBM AIX version 6.1. I'm trying to profile the memory usage so I'm looking for a command similar to the free command on Linux distributions. Help

A. svmon and vmstat

How do you show the processes that are running in linux under a command line?
Q. And, how do you show how much memory and cpu each is using?

A. Check out the manpage for ps. The most common syntax is "ps auxww" which will show PID, CPU usage, Memory usage, process name, etc for each process that is running on your system. "top" shows real time information and ranks processes by their CPU/RAM usage.

What slows down computers besides memory usage?
Q. I just deleted a whole lot from my laptop, and I ran a 'defragmentation' on the hard-drive, but it's still going really slow. Any ideas?
More detail: It's slow to open programs or new windows. There's a delay between when I click an icon and when the window opens.

A. Are you familiar with the Task manager? (Ctrl+Alt+Delete) The task manager will show you which processes are using you processor power and how much virtual memory.

What version of Windozes? Have you tried using a registry cleaner? Do you have a reliable anti-virus?

When I used to use Windozes, I had to wipe it about every 6 months and start over. It just seemed to get unstable after prolonged use. I now use Ubuntu Linux.



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Wednesday, January 23, 2013

What slows down computers besides memory usage?

Q. I just deleted a whole lot from my laptop, and I ran a 'defragmentation' on the hard-drive, but it's still going really slow. Any ideas?
More detail: It's slow to open programs or new windows. There's a delay between when I click an icon and when the window opens.

A. Are you familiar with the Task manager? (Ctrl+Alt+Delete) The task manager will show you which processes are using you processor power and how much virtual memory.

What version of Windozes? Have you tried using a registry cleaner? Do you have a reliable anti-virus?

When I used to use Windozes, I had to wipe it about every 6 months and start over. It just seemed to get unstable after prolonged use. I now use Ubuntu Linux.

What operating system should i install on a VERY old computer?
Q. The computer again is extremely old, ie 5-6 years (integrated graphics, 1 gig ram, pentium processor, etc). Now i want to find an OS that is both simple to use and one that will run efficiently, especially for viewing photos and movies (obviously this is bottle-necked by hardware, but there should be differences in memory and cpu usage from OS to OS),

So what do you suggest? the new chrome OS, win XP, ubuntu?

A. Old machines run best on what they were designed for, But time marches on and computer os support runs out of steam. If your machine was designed for XP os then use it, upgrade as much of the hardware as economical and go from there. You may find it would be best to purchase a new machine rather then try to upgrade on your own. If that is not an option and you are determined then you should start with the memory, then the video card. If your machine is at least a P4 running at close to 2.0GHz then you will have a chance depending on your technical ability. If not then you should shop the internet for a used system that is within the price range of what you are going to spend on upgrading your machine. To answer your question Google Chrome OS is only to be used for the modern netbooks (condensed and stripped down laptop computers), Win XP was most likely the OS that was installed at the factory on your machine, and Linux Ubuntu is free and open source software.... XP is my choice

Should install Linux and get rid of Windows Vista?
Q. Ok So I have a laptop and have Installed Windows Home Premium; I am wondering what is Linux? I do not know yet but I am wondering if I should install Linux and un-install Windows Vista? Please, someone Help, Should I? Which one is Better?

A. Linux Ubuntu +++++++++++

I am so glad to get rid of the intrusiveness of Windows Vista. Linux belongs to the user. not the other way around. No agreements to sign, no automatic updates that pull the rug out from under your feet, so you are forced to buy new computers. No need for expensive protection systems. It is like having a brand new computer. After having most of my memory wasted with access systems, and then finding out that they not only did not work, but just took up space, and then being denied access to get rid of them.......

You can load Ubuntu through your Windows system and try it out for free, as a separate operating system on the same computer. If you are not impressed. Just delete it. Try doing that with Window. Windows is in charge of your usage with it's system. You are in charge of your system with Ubuntu, Lenox.

If you get the disc, which is absolutely free, including postage, you can erase windows and all of it's quirks from your computer, and have ten times as much memory available with the same number of programs.



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Sunday, January 20, 2013

Does vista use different amounts of RAM depending on how much there is?

Q. My vista laptop uses just under 50% when doing nothing and has 3gigs of RAM but my desktop uses also just under 50% when doing nothing and has 2 gigs of RAM. Does vista use the more RAM the more there is? Or is there another reson for the differences in RAM usage?

A. Yes. And this is true of all NT-derived versions of Windows (NT, 2000, XP, 2003, Vista), although Vista is a bit more proactive about prefetching (and this is why people think it's a "memory hog").

And all other modern virtual memory OSs too (MacOS, Linux, BSD, etc.

However the amount of "RAM used" is misleading. The "RAM used" does not mean there is a permanent commitment to the present uses. If something else needs the RAM, things that are "using" it now can be trimmed back and give it up very quickly.

In the case of the file cache, the RAM used by prefetched file data can be released for other use just as quickly as if the prefetching had not happened at all.

So a lot more RAM is really available to, say, a new app, or to meet a sudden need by an already-running app, than you might think.

edit - Windows Sidebar? Nah. At the moment, in my 8 GB (Vista x64) machine here, Sidebar is using all of 30 MB RAM. Granted I have no gadgets except the default MSN news thing. This is the "Working set (memory)" column in Task Manager - used to be called "Mem usage".

The biggest memory user in Vista that you can easily do without is dwm.exe, the "desktop window manager". You get rid of this by disabling Aero. This loses you the transparency at the edges of windows, the live windows displays in "cool task switching" (alt-tab) and in the taskbar, etc. Even so, though, dwm.exe is like nearly everything else - it's only allowed to bloat when there's plenty of free RAM to bloat into. If something else starts up and needs some RAM, dwm.exe and everything else get trimmed back to make room.

What are some examples of self-dependent binaries?
Q. I want games that work on linux and that are "self-dependent binaries". Someone please give examples of games that fit this criteria: linux platform/cross, self-dependent binary, and take up small amount of disk space. Also, can someone explain what a self-dependent binary program is. All I know is a program that is a self-dependent binary does not require extra or very many resources from the operating system, other than that I don't know much.

A. I think you mean "static binary", not "self-dependent binary." A "static binary" does not require any external libraries to be installed (it does NOT mean that it it uses less resources, just that it has it's own copy of such resources). Static binaries are actually fairly wasteful as far as memory usage goes.

It's probably impossible to give a list of such games, as making binaries static is a compile-time option, and relatively uncommon. You can "convert" most binaries into static binaries with a tool like Statifier or Ermine.

http://statifier.sourceforge.net/
http://www.magicermine.com/index.html

What is the BEST version of Linux for an old laptop that had Windows 98 and was upgraded to XP?
Q. What is the BEST version of Linux for an old laptop that had Windows 98 and was upgraded to Windows XP? I have a 3.7 GB hard drive, with about 600 MB free. What version of Linux should I use and where do I download it?
Thanks everyone. I have finally decided. I ordered 3 CDs of UBUNTU, 1 CD of KUBUNTU, and 1 CD of EDUBUNTU. They will be at my home in 6-10 weeks. Then, I will use them as Live CDs, then pick the best one, and install it onto my laptop.

A. With the small amount of free disk, you could only use it as a server, not as a graphic desktop. 600 Mb is the necessary space for that, but you cannot run graphic applications. For a desktop installation you will need at least 1 gig. The best is 2 gigs and up.
I would encourage you to take the entire disk for a Linux installation because if you decide to upgrade Windows XP, it will probably demand more and more space until you will get out of space for your files.
If you decide to do so, First, backup all your files, then, you may divide the disk with 2 partitions: root with maybe 2.5 gigs and the rest of the space make a partition for "home" where your documents reside.
Also for light desktop environments, instead of KDE or Gnome, you should use XFCE or IceWM or Fluxbox, which don´t demand as much memory resources.
You don´t say the amount of RAM or Processor in your machine. Ubuntu and its derivatives needs at least 256 Mb 700mhz processor, maybe 128mb ram should do good. According to Ubuntu forum these are requirements for installation:

Minimum requirements
300 MHz x86 processor, 64 MB of system memory (RAM), at least 2 GB of disk space (for full installation and swap space), VGA graphics card capable of 640x480 resolution, *CD-ROM drive. If your system has less than 192 MB of system memory, use the Alternate Installation CD.
Recommended minimum requirements
500 MHz x86 processor, 192 MB of system memory (RAM), *8 GB of disk space, Graphics card capable of 1024x768 resolution, Sound card, A network or Internet connection


However, I discovered that in some old machines it doesn´t boot or it may be particularly slow. Also, Ubuntu is designed for kind of new machines, depending on your skills, you might tweak I think.
I recommend you these distros that I have used in old machines, first of all, KANOTIX. Kanotix is designed in such a way that you may install in very old machines as well as in i686. I installed in a Dell Inspiron Lr500 with 10 Gigs harddrive, RAM 256 Mb (later upgraded to 512), 500 Mhz Intel Coppermine processor. That PC was manufactured in 1999 and it rocks with Kanotix.
Another option is Mepis 3.1 I installed on a very old computer that even has ISA´s from 1998 and it works good.
Other options that do not require much space and offer some limited applications, are:
Damn Small linux: DSL is a very versatile 50MB mini desktop oriented Linux distribution.

Damn Small is small enough and smart enough to do the following things:

* Boot from a business card CD as a live linux distribution (LiveCD)
* Boot from a USB pen drive
* Boot from within a host operating system (that's right, it can run *inside* Windows)
* Run very nicely from an IDE Compact Flash drive via a method we call "frugal install"
* Transform into a Debian OS with a traditional hard drive install
* Run light enough to power a 486DX with 16MB of Ram
* Run fully in RAM with as little as 128MB (you will be amazed at how fast your computer can be!)
* Modularly grow -- DSL is highly extendable without the need to customize

Mepis: MEPISLite is designed for home users with modest hardware and as an easy way to upgrade from Windows 98. It also provides an alternative to Windows for preinstallation on new computers. MEPISLite contains many of the same programs and features as SimplyMEPIS, with some changes to improve performance on older machines. The most notable changes are that MEPISLite contains KOffice instead of OpenOffice, and Konquerer is the recommended web browser.


Deli Linux: DeLi Linux stands for "Desktop Light" Linux. It is a Linux Distribution for old computers, from 486 to Pentium II or so. It's focused on desktop usage. It includes email clients, graphical web browser, an office programs with word processor and spreadsheet, and so on. A full install, including XOrg and development tools, needs not more than 350 MB of harddisk space.

The trick is, that DeLi Linux uses only "lightweight" alternative software. If you are looking for the newest KDE, GNOME or Mozilla, DeLi Linux will not make you happy. The test computer is a 486 laptop with 16 MB RAM, and all apps which comes with DeLi Linux are running smoothly.

Puppy Linux: Puppy Linux, started by Barry Kauler, is a small, fully featured Linux distribution. Puppy works swiftly on older systems and is a delight on modern computers including ThinPCs. Puppy boots to a familiar environment for ex-Windows users. Puppy is regularly updated and is well supported and documented. Barry keeps in close contact with users and developers.
If booting from CD, Puppy carries on working even after the CD is removed. Run Puppy from a flash card, or hard disk or USB keydrive/flash drive or a recordable CD/DVD, saving and updating your files on the CD-R or DVD-R. Puppy boots into as small as a 64MB ramdisk. Puppy runs from RAM memory with applications such as the Seamonkey web browser, AbiWord word processor, gFTP client, Gnumeric spreadsheet and a superior set of programs with more available as simple free downloads. Applications start in the blink of an eye and respond to users instantly.

Well, I hope my answer helps you,
Good luck.



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Is there a free app to monitor your system activities on Windows 7?

Q. I would like to monitor my network activities, memory usage, and other processes.
Something like the activity monitor that Mac OS X and Linux have? Please and thank you :)

A. I'm not sure if this is what you mean but there is a task manager.
Press Ctrl>Alt>Delete then select start task manager
:)

How to measure the performance of an Linux C application?
Q. I have written a C code, which uses fread, fwrite,. I want to measure the performance like No_Of_Blocks read and written by the application. disk usage, memory usage etc. Is there any tool to measure the performance of an application in linux?

A. lets see:
You can measure CPU performance using /proc/cpu. You can measure ethernet performance by using /sbin/ifconfig <eth_port>. You can use df to track data written to a filesystem/mountpoint. Take a before and after snapshot using the tool of choice and determine the metric you wish to measure.

What is the corresponding free command on an AIX machine?
Q. I'm programming on a machine running IBM AIX version 6.1. I'm trying to profile the memory usage so I'm looking for a command similar to the free command on Linux distributions. Help

A. svmon and vmstat



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Thursday, January 17, 2013

What Linux operating system can you use to install Windows-based software right away with no software used?

Q. For example, Ubuntu needs a program called Wine to install Windows-based software. So is there another Linux OS that can install them right away? And if so, whats the lowest Linux OS memory usage?

A. Linux is Linux, Windows is Windows, the code base are different so theres no such thing, if there were, one would think no one would buy Windows anymore wont you ?

Is there a free app to monitor your system activities on Windows 7?
Q. I would like to monitor my network activities, memory usage, and other processes.
Something like the activity monitor that Mac OS X and Linux have? Please and thank you :)

A. I'm not sure if this is what you mean but there is a task manager.
Press Ctrl>Alt>Delete then select start task manager
:)

How to measure the performance of an Linux C application?
Q. I have written a C code, which uses fread, fwrite,. I want to measure the performance like No_Of_Blocks read and written by the application. disk usage, memory usage etc. Is there any tool to measure the performance of an application in linux?

A. lets see:
You can measure CPU performance using /proc/cpu. You can measure ethernet performance by using /sbin/ifconfig <eth_port>. You can use df to track data written to a filesystem/mountpoint. Take a before and after snapshot using the tool of choice and determine the metric you wish to measure.



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What Linux operating system can you use to install Windows-based software right away with no software used?

Q. For example, Ubuntu needs a program called Wine to install Windows-based software. So is there another Linux OS that can install them right away? And if so, whats the lowest Linux OS memory usage?

A. Linux is Linux, Windows is Windows, the code base are different so theres no such thing, if there were, one would think no one would buy Windows anymore wont you ?

Is there a free app to monitor your system activities on Windows 7?
Q. I would like to monitor my network activities, memory usage, and other processes.
Something like the activity monitor that Mac OS X and Linux have? Please and thank you :)

A. I'm not sure if this is what you mean but there is a task manager.
Press Ctrl>Alt>Delete then select start task manager
:)

How to measure the performance of an Linux C application?
Q. I have written a C code, which uses fread, fwrite,. I want to measure the performance like No_Of_Blocks read and written by the application. disk usage, memory usage etc. Is there any tool to measure the performance of an application in linux?

A. lets see:
You can measure CPU performance using /proc/cpu. You can measure ethernet performance by using /sbin/ifconfig <eth_port>. You can use df to track data written to a filesystem/mountpoint. Take a before and after snapshot using the tool of choice and determine the metric you wish to measure.



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