Date: Wed, 4 Jul 2007 12:05:21 -0700 (PDT) From: Jeff Roberson <jroberson@chesapeake.net> To: Attilio Rao <attilio@freebsd.org> Cc: arch@freebsd.org, Alfred Perlstein <alfred@freebsd.org>, Robert Watson <rwatson@freebsd.org> Subject: Re: Fine grain select locking. Message-ID: <20070704120347.M552@10.0.0.1> In-Reply-To: <3bbf2fe10707040800p4e003df0p65e2b802f81ec51e@mail.gmail.com> References: <20070702230728.E552@10.0.0.1> <20070703181242.T552@10.0.0.1> <20070704105525.GU45894@elvis.mu.org> <20070704124833.W37059@fledge.watson.org> <3bbf2fe10707040800p4e003df0p65e2b802f81ec51e@mail.gmail.com>
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On Wed, 4 Jul 2007, Attilio Rao wrote: > 2007/7/4, Robert Watson <rwatson@freebsd.org>: >> There seem to be two parts of owning a benchmark: >> >> - Establishing baselines over time -- how doe FreeBSD 4.8, 5.5, 6.0, 6.1, >> 6.2, >> 6-STABLE weekly, 7-CURRENT weekly, and maybe a Linux or NetBSD version >> perform for the workload using otherwise identical configuration. >> >> - Measurement and feedback -- identifying bottlenecks, working with >> developers >> to measure the results of specific optimizations, etc, across the life >> cycle >> of the patch. > > Another problem here would be about the hardware availabilty > (obviously I'm speaking about scalability improvements). > Until now, tests have been done mainly on amd64 machines provided by > Kris and Jeff, IIRC. > Having a wider range of targets would help a lot in these cases. Yes, definitely. For the scheduler work I often see certain decisions fair worse on different platforms even running the same workload. It would be valuable to me to have a wider array of hardware as well as benchmarks. The netperf cluster helps, but for general scheduler work I also need to know how it fares on a large variety of platforms. Thanks, Jeff > > Attilio > > > -- > Peace can only be achieved by understanding - A. Einstein > _______________________________________________ > freebsd-arch@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-arch > To unsubscribe, send any mail to "freebsd-arch-unsubscribe@freebsd.org" >
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