Date: Tue, 17 Jul 2007 13:02:52 -0700 (PDT) From: Jeff Roberson <jroberson@chesapeake.net> To: youshi10@u.washington.edu Cc: Attilio Rao <attilio@freebsd.org>, current@freebsd.org Subject: Re: ULE/SCHED_SMP diff for 7.0, buildkernel & thanks. Message-ID: <20070717125133.S92541@10.0.0.1> In-Reply-To: <Pine.LNX.4.43.0707171241580.17139@hymn01.u.washington.edu> References: <Pine.LNX.4.43.0707171241580.17139@hymn01.u.washington.edu>
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On Tue, 17 Jul 2007, youshi10@u.washington.edu wrote: > > Unfortunately those results are still based on 2.6.20, not 2.6.22 (2 minor > patch revision difference). > > I assume that that's for a vanilla Linux kernel? Look more closely; The green line is linux-2.6.21 with the new glibc. I sent my kernel config to some linux hackers to look at. We removed some minor debugging code to get these results. I have also tested with 2.6.22 with no real change. Although many other people saw great improvements. I will update to fedora core 7 eventually although I supposedly have the relevant fixes. In my mind I hope that linux addresses their issues and that really isn't my primary concern. My primary concern is that freebsd is now becoming competitive on higher-end server class hardware for a variety of workloads where it was not before. I benchmarked linux just to see where we are at as they are generally considered fast and scalable. The credit for the great improvements we've seen from 6 to 7 should go to the many developers who have put a lot of hard work into locking individual subsystems and the primitives. The scheduler is only able to do better now because there is less contention over all. Thank you, Jeff > > -Garrett > > _______________________________________________ > freebsd-current@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-current > To unsubscribe, send any mail to "freebsd-current-unsubscribe@freebsd.org" >
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