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SubjectRe: RFT: updatedb "morning after" problem [was: Re: -mm merge plans for 2.6.23]
On 07/27/2007 09:43 PM, david@lang.hm wrote:

> On Fri, 27 Jul 2007, Rene Herman wrote:
>
>> On 07/27/2007 07:45 PM, Daniel Hazelton wrote:
>>
>>> Questions about it:
>>> Q) Does swap-prefetch help with this?
>>> A) [From all reports I've seen (*)]
>>> Yes, it does.
>>
>> No it does not. If updatedb filled memory to the point of causing
>> swapping (which noone is reproducing anyway) it HAS FILLED MEMORY and
>> swap-prefetch hasn't any memory to prefetch into -- updatedb itself
>> doesn't use any significant memory.
>
> however there are other programs which are known to take up significant
> amounts of memory and will cause the issue being described (openoffice
> for example)
>
> please don't get hung up on the text 'updatedb' and accept that there
> are programs that do run intermittently and do use a significant amount
> of ram and then free it.

Different issue. One that's worth pursueing perhaps, but a different issue
from the VFS caches issue that people have been trying to track down.

Rene.
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