Swap space is a virtual memory of RAM. It is used when the amount of RAM is full. Swap space can be a dedicated swap partition, a swap file, or a combination of swap partitions and swap files.

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Memory percentage in top (linux)

Just wondering (1) is the memory percentage in top for a process is relative to memory or relative to memory+swap? (2) if it is the former, how can I get the latter? Vice versa. (3) To determine ...
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disable pre-emptive swapping in windows xp

If I leave my XP pc for a while, it seems to swap most of my processes to disc. I come back to use it after X hours/days and each process takes 10-30s to get going as it loads it in off disc. It seems ...
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Unnecessary Swapping in Linux

It seems that sometimes, my computer will start swapping unnecessarily (memory usuage is ~25%), and I can't figure out why. It seems to happen most often when running Perl scripts, but these aren't ...
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Moving the swapfiles to a dedicated partition in Snow Leopard

I have been able to move Apple's virtual memory swapfiles to a dedicated partition on my hard drive up until now. The technique I have been using is described in a thread on forums.macosxhints.com. ...
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Turn on swap memory on Ubuntu

For some reason on my Ubuntu 9.04 desktop, swap memory is turned off. How can I turn it back on?
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Can I hibernate Linux without a swap partition?

I hadn't set up a swap partition on my PC, because a) I have plenty of RAM (8 GB) and b) I have large harddrives that I didn't want to chop into tiny pieces, so my smallest partitions are 50 GiB, and ...
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Releasing swap space

At times the kernel seems to be intent on keeping e.g. firefox in swap, even though there is enough physical memory available and I'm using firefox: robert@rm:~> free -m total ...
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Swap partition size for 4GB RAM

I'm planning to install Ubuntu 9.04 version. How much space should I dedicate for swap partition. I remember setting it to double the RAM size when I installed long back. At that time my RAM was 256 ...
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Windows Swap (Page File): Enable or Disable?

From my personal experience I've noticed that disabling the page file in Windows XP has given me, in general, the most speed gain out of any other software change I can make. Obviously this has to be ...