On Wed, Mar 09, 2005 at 01:29:23PM -0800, Badari Pulavarty wrote: > On Wed, 2005-03-09 at 13:27, Dipankar Sarma wrote: > > On Wed, Mar 09, 2005 at 10:55:58AM -0800, Badari Pulavarty wrote: > > > Hi, > > > > > > We have a 8-way P-III, 16GB RAM running 2.6.8-1. We use this as > > > our server to keep source code, cscopes and do the builds. > > > This machine seems to slow down over the time. One thing we > > > keep noticing is it keeps running out of lowmem. Most of > > > the lowmem is used for ext3 inode cache + dentry cache + > > > bufferheads + Buffers. So we did 2:2 split - but it improved > > > thing, but again run into same issues. > > > > > > So, why is these slab cache are not getting purged/shrinked even > > > under memory pressure ? (I have seen lowmem as low as 6MB). What > > > can I do to keep the machine healthy ? > > > > How does /proc/sys/fs/dentry-state look when you run low on lowmem ? > > > > [EMAIL PROTECTED]:~$ cat /proc/sys/fs/dentry-state > 1434093 1348947 45 0 0 0 > [EMAIL PROTECTED]:~$ grep dentry /proc/slabinfo > dentry_cache 1434094 1857519 144 27 1 : tunables 120 > 60 8 : slabdata 68797 68797 0
Hmm.. so we are not shrinking dcache despite a large number of unsed dentries. That is where we need to look. Will dig a bit tomorrow. Thanks Dipankar - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
