Re: [HPDD-discuss] MDS dentry slabinfo

Ah yes... I was doing that for testing something else and forgot to unmount. Does that explain the large jump? ----- Original Message ----- > are you running with MDS + client on the same node? > > thanks, Alex > > On Dec 4, 2013, at 4:25 PM, Daire Byrne <daire(a)dneg.com&gt; wrote: > >> Hi, >> >> I have been playing around with setting vfs_cache_pressure=0 on our v2.4.1 >> MDS and noticed that the dentry usage as reported from slabtop looks very >> odd. It seems to remain pretty much the same for long periods of time and >> then jumps up suddenly. I have attached a graph of >> ldiskfs_inode_cache,dentry and buffer_head. >> >> https://db.tt/DSxKl5gm >> >> Is the dentry usage tracked in some other slab? The server ran out of >> memory not long after the dentry count jumped up. What I'm interesting in >> doing is track slab usage and toggle vfs_cache_pressure to avoid running >> out of memory whilst maximising the inode/dentry cache. >> >> Daire<mds-slab.png>_______________________________________________ >> HPDD-discuss mailing list >> HPDD-discuss(a)lists.01.org >> https://lists.01.org/mailman/listinfo/hpdd-discuss > > > -------------------------------------------------------------------- > Closed Joint Stock Company Intel A/O > Registered legal address: Krylatsky Hills Business Park, > 17 Krylatskaya Str., Bldg 4, Moscow 121614, > Russian Federation > > This e-mail and any attachments may contain confidential material for > the sole use of the intended recipient(s). Any review or distribution > by others is strictly prohibited. If you are not the intended > recipient, please contact the sender and delete all copies. > >