Monumentally slow directory performance.

[Julian Elischer]

I've noticed that the 3ware gets slow when there is contention
i.e. it needs to seek around..


On Sat, 10 Apr 2004, Jaye Mathisen wrote:

> vfs.ufs.dirhash_minsize: 2560
> vfs.ufs.dirhash_maxmem: 4194304
> vfs.ufs.dirhash_mem: 448261
> vfs.ufs.dirhash_docheck: 0
> vfs.vmiodirenable: 1
> 
> Seems fine to me.  I'm going to do some more experimenting off of the raid
> array, maybe there's something there with the 3ware driver causing the problem.
> 
> 
> On Sat, Apr 10, 2004 at 11:00:29PM -0400, Mike Tancsa wrote:
> > On Fri, 9 Apr 2004 13:22:36 -0700, in sentex.lists.freebsd.current you
> > wrote:
> > 
> > >
> > >
> > >Running a 5.2 supped as of 4/9.
> > ....
> > 
> > >Even directories with 2500 or so files seem really, really, really, really slow.
> > >at least for adding/removing.
> > 
> > What does 
> > % sysctl -a | grep dirhash
> > 
> > show ?  Perhaps you dont have enough RAM allocated to the dirhash ?
> > 
> > 	---Mike
> > 
> > 
> > !DSPAM:4078b4cb4505131419744!
> > 
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