Date: Fri, 30 Jul 2004 12:06:45 -0400 From: Brian Fundakowski Feldman <green@FreeBSD.org> To: Maxime Henrion <mux@FreeBSD.org> Cc: cvs-all@FreeBSD.org Subject: Re: cvs commit: src/sys/vm vm_map.c vm_map.h Message-ID: <20040730160645.GB33220@green.homeunix.org> In-Reply-To: <200407300910.i6U9ASg5077534@repoman.freebsd.org> References: <200407300910.i6U9ASg5077534@repoman.freebsd.org>
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On Fri, Jul 30, 2004 at 09:10:28AM +0000, Maxime Henrion wrote: > mux 2004-07-30 09:10:28 UTC > > FreeBSD src repository > > Modified files: > sys/vm vm_map.c vm_map.h > Log: > Get rid of another lockmgr(9) consumer by using sx locks for the user > maps. We always acquire the sx lock exclusively here, but we can't > use a mutex because we want to be able to sleep while holding the > lock. This is completely equivalent to what we were doing with the > lockmgr(9) locks before. Not that I don't think it's worth doing in general, but is there a comparison anyone has done between speeds of sx and lockmgr? -- Brian Fundakowski Feldman \'[ FreeBSD ]''''''''''\ <> green@FreeBSD.org \ The Power to Serve! \ Opinions expressed are my own. \,,,,,,,,,,,,,,,,,,,,,,\
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