Date: Tue, 17 Jul 2007 06:50:04 -0500 From: Eric Anderson <anderson@freebsd.org> To: Claus Guttesen <kometen@gmail.com> Cc: current@freebsd.org Subject: Re: ULE/SCHED_SMP diff for 7.0 Message-ID: <469CACEC.1000103@freebsd.org> In-Reply-To: <b41c75520707170318r2152b9f0l8d2ec7ea592fe450@mail.gmail.com> References: <20070716233030.D92541@10.0.0.1> <b41c75520707170318r2152b9f0l8d2ec7ea592fe450@mail.gmail.com>
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Claus Guttesen wrote: >> This patch is scheduled for inclusion in 7.0. I would like anyone who >> cares to run it to validate that it does not create any stability or >> performance regression over the existing ULE. This patch replaces ULE >> with SCHED_SMP, which will now no longer exist as a seperate fork of ULE. > > Not very scientific nor precise but using 4bsd as scheduler 'make -j 3 > buildkernel' completed in 11 min. 58 secs. and ule did the same in 13 > min. 26 secs. So ule seems slower. This is on a dual zeon @ 3.2 Ghz > (the first 64-bit from Intel, not very fast but hot) and 3 GB ram and > 15 RPM scsi-disk with /usr on zfs. > Ahah! 15 RPM drives, no wonder! :) On a serious note, can you do that same test, with '-j 4' or higher? I think you can easily do two per processor, at least that's what I do on a Core 2 Duo. Eric
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