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Date: Fri, 26 Aug 2005 00:39:17 +0200
From: Claus Guttesen <kometen@gmail.com>
To: Marian Hettwer <MH@kernel32.de>
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References: <430E06AA.2000907@kernel32.de>
	<6.2.3.4.0.20050825135916.07a19ac8@64.7.153.2>
	<430E3743.3030108@kernel32.de>
Cc: freebsd-current@freebsd.org, Mike Tancsa <mike@sentex.net>
Subject: Re: filesystem performance with lots of small files
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> I didn't changed anything from the defaults... it looks like that:
> mhettwer@submaster-test$ sysctl vfs.ufs.dirhash_maxmem
> vfs.ufs.dirhash_maxmem: 2097152
> mhettwer@submaster-test$ sysctl vfs.ufs.dirhash_mem
> vfs.ufs.dirhash_mem: 368622

You could try the following change:

sysctl vfs.ufs.dirhash_maxmem=3D8388608

Did you use the GENERIC-kernel? If so, remember that witness,
invariants etc. are a part of the RELENG_6-branch. You should disable
these settings with a custom-build kernel. You may also want to read
/usr/src/UPDATING.

regards
Claus