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SubjectRe: Kernel doesn't free Cached Memory
Al Boldi wrote:
> Dick Johnson wrote: {
>
>>On Fri, 2005-07-22 at 08:27 -0300, Vinicius wrote:
>>[...]
>>
>>> I have a server with 2 Pentium 4 HT processors and 32 GB of RAM,
>>>this server runs lots of applications that consume lots of memory to.
>>>When I stop this applications, the kernel doesn't free memory (the
>>>memory still in use) and the server cache lots of memory (~27GB).
>>>When I start this applications, the kernel sends "Out of Memory"
>>>messages and kill some random applications.
>
>
> ...you might even need to turn memory over-commit off:
> echo "0" > /proc/sys/vm/overcommit_memory
> }
>
> That's in 2.4. In 2.6 it's:
> echo "2" > /proc/sys/vm/overcommit_memory

RHEL3 *is* a 2.4 kernel.
>
> But the kernel doesn't honor no-overcommit in either version, i.e. it still
> overcommits/pages-out loaded/running procs, thus invoking OOM!
>
> Is there a way to make the kernel strictly honor the no-overcommit request?
>

Don't have swap?

--
-bill davidsen (davidsen@tmr.com)
"The secret to procrastination is to put things off until the
last possible moment - but no longer" -me
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