Date: Sat, 30 Oct 2010 01:24:26 +0000 (UTC) From: Konstantin Belousov <kib@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-8@freebsd.org Subject: svn commit: r214544 - stable/8/share/man/man7 Message-ID: <201010300124.o9U1OQ87073220@svn.freebsd.org>
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Author: kib Date: Sat Oct 30 01:24:26 2010 New Revision: 214544 URL: http://svn.freebsd.org/changeset/base/214544 Log: MFC r213917: Document vfs.ncsizefactor and vfs.ncnegfactor. Modified: stable/8/share/man/man7/tuning.7 Directory Properties: stable/8/share/man/man7/ (props changed) Modified: stable/8/share/man/man7/tuning.7 ============================================================================== --- stable/8/share/man/man7/tuning.7 Sat Oct 30 01:19:15 2010 (r214543) +++ stable/8/share/man/man7/tuning.7 Sat Oct 30 01:24:26 2010 (r214544) @@ -23,7 +23,7 @@ .\" .\" $FreeBSD$ .\" -.Dd January 23, 2009 +.Dd October 16, 2010 .Dt TUNING 7 .Os .Sh NAME @@ -511,6 +511,24 @@ Also, higher write queueing values may add latency to reads occurring at the same time. .Pp +The +.Va vfs.ncsizefactor +sysctl defines how large VFS namecache may grow. +The number of currently allocated entries in namecache is provided by +.Va debug.numcache +sysctl and the condition +debug.numcache < kern.maxvnodes * vfs.ncsizefactor +is adhered to. +.Pp +The +.Va vfs.ncnegfactor +sysctl defines how many negative entries VFS namecache is allowed to create. +The number of currently allocated negative entries is provided by +.Va debug.numneg +sysctl and the condition +vfs.ncnegfactor * debug.numneg < debug.numcache +is adhered to. +.Pp There are various other buffer-cache and VM page cache related sysctls. We do not recommend modifying these values. As of
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