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Date: Tue, 13 Mar 2007 15:35:14 +0000 From: Ash Milsted <thatistosayiseenem@...ab.com> To: Con Kolivas <kernel@...ivas.org> Cc: linux kernel mailing list <linux-kernel@...r.kernel.org>, ck list <ck@....kolivas.org> Subject: Re: [ck] RSDL v0.30 cpu scheduler for mainline kernels On Mon, 12 Mar 2007 10:58:11 +1100 Con Kolivas <kernel@...ivas.org> wrote: > There are updated patches for 2.6.20, 2.6.20.2, 2.6.21-rc3 and 2.6.21-rc3-mm2 > to bring RSDL up to version 0.30 for download here: > > Full patches: > > http://ck.kolivas.org/patches/staircase-deadline/2.6.20-sched-rsdl-0.30.patch > http://ck.kolivas.org/patches/staircase-deadline/2.6.20.2-rsdl-0.30.patch > http://ck.kolivas.org/patches/staircase-deadline/2.6.21-rc3-sched-rsdl-0.30.patch > http://ck.kolivas.org/patches/staircase-deadline/2.6.21-rc3-mm2-rsdl-0.30.patch > > incrementals: > > http://ck.kolivas.org/patches/staircase-deadline/2.6.20/2.6.20.2-rsdl-0.29-0.30.patch > http://ck.kolivas.org/patches/staircase-deadline/2.6.20.2/2.6.20.2-rsdl-0.29-0.30.patch > http://ck.kolivas.org/patches/staircase-deadline/2.6.21-rc3/2.6.21-rc3-rsdl-0.29-0.30.patch > http://ck.kolivas.org/patches/staircase-deadline/2.6.21-rc3-mm2/2.6.21-rc3-mm2-rsdl-0.29-0.30.patch > > -- > -ck > _______________________________________________ > http://ck.kolivas.org/faqs/replying-to-mailing-list.txt > ck mailing list - mailto: ck@....kolivas.org > http://vds.kolivas.org/mailman/listinfo/ck Here's my experience with RSDL 0.30 on 2.6.21-rc3-git6 under my normal usage scenarios... Plain desktop use (web browsing, music, etc): no noticeable change Desktop use during kernel compile (no -j): The compile impacts desktop use more with RSDL, but this is easily solved by nice-ing the compile (default nice of 10 seems enough). The kind of impact I am talking about is e.g. occasional delays in scrolling in the browser etc. Desktop use whilst talking on Wengophone (run at nice -5): Under RSDL some GUI use e.g. opening a new folder in nautilus causes pops (buffer underruns) which do not occur with mainline. I suppose the changes in RSDL might require a lower nice value for equivalent performance, but (as a user) I am limited to -5. Low-latency audio with JACK and Ardour2: Rock-solid performance with either scheduler.. realtime works nicely. Playing Quake3 (proprietary nvidia driver): Plays smoothly for both schedulers. So, I suppose I'd like to know what to do about the Wengophone issue, because that really is a problem for me. I guess your re-worked -ive nice values might help? Ash - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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