Alexandre Buisse <[email protected]> wrote:
>
> On Tue, Feb 14, 2006 at 00:47:15 +0100, Andrew Morton wrote:
>
> >
> > ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.16-rc2/2.6.16-rc2-mm1/
> >
>
> Hi,
>
> I have been using 2.6.16-rc2-mm1 for a couple of days on my laptop and
> tonight it was particularly slow. After shutting down firefox, X and
> pretty much every user application, free was still saying:
>
> ubik:~> free -l
> total used free shared buffers
> cached
> Mem: 508592 502948 5644 0
> 7056 25084
> Low: 508592 502948 5644
> High: 0 0 0
> -/+ buffers/cache: 470808 37784
> Swap: 506512 86260 420252
>
>
> ps is almost empty, but /proc/slabinfo (see attached file for the
> complete output) has some weird lines:
>
> sock_inode_cache 644184 644202 448 9 1 : tunables 54 27 0 : slabdata 71578 71578 0
>
> inode_cache 1216 1232 360 11 1 : tunables 54 27 0 : slabdata 112 112 0 : shrinker stat 2103424 2101400
> dentry_cache 647419 649830 128 30 1 : tunables 120 60 0 : slabdata 21661 21661 0 : shrinker stat 5027712 2374200
>
>
Well it _could_ be caused by an errant application. But if it just started
happening, it's more likely the kernel. There are related changes in
Dave's tree.
You could try `echo 3 > /proc/sys/vm/drop_caches' to see if they're
reclaimable.
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