Date: Thu, 15 Jan 2009 21:20:37 -0800 From: "Kip Macy" <kmacy@freebsd.org> To: "John Baldwin" <jhb@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: <3c1674c90901152120o6c1be5dal785c76eae536b757@mail.gmail.com> In-Reply-To: <200901151003.27545.jhb@freebsd.org> References: <200901030200.n0320Arr013245@svn.freebsd.org> <200901151003.27545.jhb@freebsd.org>
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404 On Thu, Jan 15, 2009 at 7:03 AM, John Baldwin <jhb@freebsd.org> wrote: > 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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