Date: Mon, 9 Mar 2009 19:04:53 +0000 (UTC) From: John Baldwin <jhb@FreeBSD.org> To: cvs-src-old@freebsd.org Subject: cvs commit: src/sys/kern vfs_cache.c Message-ID: <200903091905.n29J51eA045904@repoman.freebsd.org>
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jhb 2009-03-09 19:04:53 UTC
FreeBSD src repository
Modified files:
sys/kern vfs_cache.c
Log:
SVN rev 189593 on 2009-03-09 19:04:53Z by jhb
Move the debug.hashstat sysctl tree under DIAGNOSTIC. I measured the
debug.hashstat.rawnchash sysctl in particular as taking 7 milliseconds on
a 3GHz Intel Xeon (4x2) running 7.1. It accounted for almost a quarter of
the total runtime of 'sysctl -a'. It also performs lots of copyout's while
holding the namecache lock (this does not attempt to fix that).
MFC after: 2 weeks
Revision Changes Path
1.137 +2 -0 src/sys/kern/vfs_cache.c
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