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Message-Id: <201209171113.45276.andres@anarazel.de> Date: Mon, 17 Sep 2012 11:13:44 +0200 From: Andres Freund <andres@...razel.de> To: Jerome Glisse <j.glisse@...il.com> Cc: LKML <linux-kernel@...r.kernel.org>, David Airlie <airlied@...ux.ie>, Jerome Glisse <jglisse@...hat.com>, Alex Deucher <alexander.deucher@....com> Subject: Re: Excessive kernel time inside ttm when scrolling on a r700 in a multimonitor setup On Monday, September 17, 2012 10:47:10 AM Jerome Glisse wrote: > On Sun, Sep 16, 2012 at 7:18 PM, Andres Freund <andres@...razel.de> wrote: > > Hi everyone, > > > > In several gui programs, most notably and reproducably, I can trivially > > make Xorg spend the whole cpu time in the kernel. It might be an Xorg > > bug, but from my untrained gut feeling it doesn't look that way. > > > > Anything more you need than whats already in the email? > > > Here are some details: > Is it an AGP card ? It looks like it's the PAT update that kills perf > for you, not much we can do, the pool allocator is probably starve. If you mean AGP as in the old strange graphics bus, no. Its a pcie card. If that helps you, more detailedly the card is a: SAPPHIRE Radeon HD6870 Unfortunately the manufacturers page is remarkably devoid of details...: http://www.sapphiretech.com/presentation/product/?cid=1&gid=3&sgid=1037&lid=1&pid=1270&leg=0 Greetings, Andres -- 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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