Re: Over-eager swapping

[Dave Hansen]

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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