Date: Fri, 01 Oct 2004 14:31:53 -0400 From: Stephan Uphoff <ups@tree.com> To: Brian Fundakowski Feldman <green@FreeBSD.org> Cc: "freebsd-arch@freebsd.org" <freebsd-arch@FreeBSD.org> Subject: Re: scheduler (sched_4bsd) questions Message-ID: <1096655513.27811.66.camel@palm.tree.com> In-Reply-To: <20041001165151.GJ997@green.homeunix.org> References: <1095468747.31297.241.camel@palm.tree.com> <1096477932.3733.1471.camel@palm.tree.com> <1096489576.3733.1868.camel@palm.tree.com> <200409291652.29990.jhb@FreeBSD.org> <1096496057.3733.2163.camel@palm.tree.com> <1096603981.21577.195.camel@palm.tree.com> <1096608201.21577.203.camel@palm.tree.com> <20041001141040.GA1556@peter.osted.lan> <1096647194.27811.12.camel@palm.tree.com> <20041001165151.GJ997@green.homeunix.org>
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On Fri, 2004-10-01 at 12:51, Brian Fundakowski Feldman wrote: > On Fri, Oct 01, 2004 at 12:13:14PM -0400, Stephan Uphoff wrote: > > On Fri, 2004-10-01 at 10:10, Peter Holm wrote: > > > On Fri, Oct 01, 2004 at 01:23:21AM -0400, Stephan Uphoff wrote: > > > > On Fri, 2004-10-01 at 00:13, Stephan Uphoff wrote: > > > > > > > > > I also had overlooked > > > > > http://www.holm.cc/stress/log/cons80.html > > > > > Showing that my patch for kern_switch.c (switch_patch) has a bug. > > > > > I will send an updated patch later today. > > > > > > > > OK - here is the promised patch. > > > > > > > > > > For once I'm the bearer of good news. The switch_patch_v2 + the > > > sched_4bsd patch ran the tests for more than one hour without > > > any freeze. The sched_4bsd alone did not stop the freezes. I'm > > > now testing the switch_patch_v2 alone and it's looking good for > > > 55+ minutes of testing. > > > > Great ! > > I guess I should roll a cleaned up cumulative patch soon. > > I suppose it might be a bit too hopeful, but is there any chance you're > taking a look at SCHED_ULE problems, too? I have to get some work done on my own project before I run out of funding :-( This means I need to avoid looking at SCHED_ULE for at least the next week. Stephan
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