Mailinglist Archive: opensuse (1239 mails)

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Re: [opensuse] Re: XFS and openSUSE 12.1
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On 2013-06-11 14:01, Per Jessen wrote:
Roger Oberholtzer wrote:


Try /proc/sys/vm/drop_caches

from https://www.kernel.org/doc/Documentation/sysctl/vm.txt
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Writing to this will cause the kernel to drop clean caches, dentries and
inodes from memory, causing that memory to become free.

To free pagecache: echo 1 > /proc/sys/vm/drop_caches To free
dentries and inodes: echo 2 > /proc/sys/vm/drop_caches To free
pagecache, dentries and inodes: echo 3 > /proc/sys/vm/drop_caches

As this is a non-destructive operation and dirty objects are not
freeable, the user should run `sync' first.
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But

as this empties all, not only the ones he wants, other processes
read/writing to disk will delay. For instance, syslog. Or library
loading. Whatever. :-)

- --
Cheers / Saludos,

Carlos E. R.
(from 12.3 x86_64 "Dartmouth" at Telcontar)
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