Date: Thu, 15 Jan 2009 10:03:27 -0500 From: John Baldwin <jhb@freebsd.org> To: Kip Macy <kmacy@freebsd.org> Cc: src-committers@freebsd.org, svn-src-user@freebsd.org Subject: Re: svn commit: r186710 - user/kmacy/HEAD_fast_net/sys/kern Message-ID: <200901151003.27545.jhb@freebsd.org> In-Reply-To: <200901030200.n0320Arr013245@svn.freebsd.org> References: <200901030200.n0320Arr013245@svn.freebsd.org>
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On Friday 02 January 2009 9:00:10 pm Kip Macy wrote: > Author: kmacy > Date: Sat Jan 3 02:00:10 2009 > New Revision: 186710 > URL: http://svn.freebsd.org/changeset/base/186710 > > Log: > convert name cache lock to rwlock for lookups I think you need to restart the lookup if you fail an upgrade. I've had a patch to do that for years (literally) but it didn't help performance in earlier tests by kris@. You can find one that does the restarts at www.freebsd.org/~jhb/namei_rwlock.patch. -- John Baldwin
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