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SubjectRe: Benchmarking 2.2 and 2.4 using hdparm and dbench 1.1
On Tuesday 09 January 2001 12:08, Anton Blanchard wrote:
> > Where is the size defined, and is it easy to modify?
> Look in fs/buffer.c:buffer_init()
> > I noticed that /proc/sys/vm/freepages is not writable any more. Is there
> > any reason for this?
> I am not sure why.

It can probably be made writeable, within limits (caused by zones...)

But the interesting part is that 2.4 tries to estimate how much memory it
will need shortly (inactive_target) and try to keep that amount inactive
clean (inactive_clean) - clean inactive memory can be freed and reused very

cat /proc/meminfo

My feeling is that, for now, keeping it untuneable can help us in finding
fixable cases...


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