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SubjectRe: Over-eager swapping
On 04/23/2012 02:27 AM, Richard Davies wrote:
> # cat /proc/meminfo
> MemTotal: 65915384 kB
> MemFree: 271104 kB
> Buffers: 36274368 kB

Your "Buffers" are the only thing that really stands out here. We used
to see this kind of thing on ext3 a lot, but it's gotten much better
lately. From slabinfo, you can see all the buffer_heads:

buffer_head 8175114 8360937 104 39 1 : tunables 0 0
0 : slabdata 214383 214383 0

I _think_ this was a filesystems issue where the FS for some reason kept
the buffers locked down. The swapping just comes later as so much of
RAM is eaten up by buffers.



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