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Full Discussion: memory regain
Top Forums UNIX for Dummies Questions & Answers memory regain Post 31160 by Neo on Saturday 2nd of November 2002 08:55:10 PM
Old 11-02-2002
FWIW: Linux uses memory very efficiently and will often, over time, use most of the memory available. This is considered to be a feature, BTW.

Take, for example, XP. I have 1.5GB loaded and it seems to never use more than 400MB - 500 MB no matter how many apps I have running.

If this was a linux system, it would find a way to use all the memory.

Your description of linux, over time, using 80 percent or more memory is common. Here is our linux server memory stats:

Code:
CPU states: 10.8% user,  6.1% system,  0.0% nice, 83.0% idle
Mem:   517496K av,  506932K used,   10564K free,   64624K shrd,  298040K buff
Swap:  256024K av,     320K used,  255704K free     111132K cached

Up almost 3 months:

Code:
www# uptime
  8:52pm  up 84 days, 21:36,  3 users,  load average: 0.15, 0.10, 0.05
www#

So, 507/517 is about 98 percent, and this is normal for good running linux boxes because linux is designed to use the available memory efficiently.
 

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FSCK.CRAMFS(8)						       System Administration						    FSCK.CRAMFS(8)

NAME
fsck.cramfs - fsck compressed ROM file system SYNOPSIS
fsck.cramfs [options] file DESCRIPTION
fsck.cramfs is used to check the cramfs file system. OPTIONS
-v, --verbose Enable verbose messaging. -b, --blocksize blocksize Use this blocksize, defaults to page size. Must be equal to what was set at creation time. Only used for --extract. --extract[=directory] Test to uncompress the whole file system. Optionally extract contents of the file to directory. -a This option is silently ignored. -y This option is silently ignored. -V, --version Display version information and exit. -h, --help Display help text and exit. EXIT STATUS
0 success 4 file system was left uncorrected 8 operation error, such as unable to allocate memory 16 usage information was printed SEE ALSO
mount(8), mkfs.cramfs(8) AVAILABILITY
The example command is part of the util-linux package and is available from Linux Kernel Archive <https://www.kernel.org/pub/linux/utils /util-linux/>. util-linux April 2013 FSCK.CRAMFS(8)
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