Date: Sat, 10 Nov 2007 14:58:44 -0500 From: "Josh Carroll" <josh.carroll@gmail.com> To: "Jeff Roberson" <jroberson@chesapeake.net> Cc: freebsd-performance@freebsd.org Subject: Re: ULE vs. 4BSD in RELENG_7 Message-ID: <8cb6106e0711101158o16887999rf7f7302ad44d0de8@mail.gmail.com> In-Reply-To: <8cb6106e0711091855x1305ee2bt6d57696df7c7564@mail.gmail.com> References: <8cb6106e0710230902x4edf2c8eu2d912d5de1f5d4a2@mail.gmail.com> <8cb6106e0711032221i2ecf1d59ge82f368d4162a827@mail.gmail.com> <20071104122546.S544@10.0.0.1> <8cb6106e0711041243s37ef92e3i9c5c79827f547dbb@mail.gmail.com> <20071104151722.M544@10.0.0.1> <8cb6106e0711050141g674a7733h53f7e6a20e75ad07@mail.gmail.com> <20071106171059.M544@10.0.0.1> <8cb6106e0711062136r18ca8e67sbdb4d4372e10e086@mail.gmail.com> <20071109145827.W639@10.0.0.1> <8cb6106e0711091855x1305ee2bt6d57696df7c7564@mail.gmail.com>
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> ffmpeg: 1:38.885 > > sysbench: (4,8,12,16 threads respectively): > 2221.93 > 2327.87 > 2292.49 > 2269.29 > > And buildworld: 13m47.052s I ran these after changing the slice value to 7 as well with this patch. ffmpeg: 1:38.547 sysbench: 2236.55 2321.02 2271.76 2254.85 buildworld: 13m44.792s So it looks like it makes very little difference with the new patch. It slightly increases performance of 4 and 8 thread sysbench, and very slightly the buildworld time, but not nearly as significant a change as with the release ULE changing the slice value. Is the other half of the context switch enhancements compatible with this patch? The performance numbers are now very close for the other benchmarks, and still quite a bit better for MySQL, so hopefully this will help out for 7.1-RELEASE (I imagine it's too late for 7.0-RELEASE, right?). Stability wise, I have had zero problems (with all the patches you've provided). :) So at least on this box, the patch is stable and a great improvement. Thanks again for all your efforts Jeff! Josh
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