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Date: Sun, 2 Mar 2008 11:40:31 +0100 From: Pavel Machek <pavel@....cz> To: huggie@...th.li, linux-kernel@...r.kernel.org Subject: Re: Scheduler broken? sdhci issues with scheduling On Fri 2008-02-29 11:52:57, Simon Huggins wrote: > [ Please Cc me on replies ] > > I had a bug with sdhci which Pierre Ossman looked at for me. > > In the end essentially the fix was to use HZ=1000 and nothing else. > Pierre seemed to think that this was a bug in the scheduler. > > I'm interested if someone who groks the scheduler could take a look at > the mmc/* code and see if it's abusing HZ or if there's anything > obviously wrong there. If it's not then perhaps there really is a bug > in the scheduler? Is mmc slow or does it just break down? Slow would be expected, but breaking down should be fixed in MMC, too... -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html -- 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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