Messages in this thread | | | Date | Mon, 3 Nov 2008 11:48:07 +0100 | From | Ingo Molnar <> | Subject | Re: io resources and cached mappings (was: [git pull] drm patches for 2.6.27-rc1) |
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* Dave Airlie <airlied@gmail.com> wrote:
> On Fri, Oct 24, 2008 at 1:39 AM, Keith Packard <keithp@keithp.com> wrote: > > On Thu, 2008-10-23 at 10:05 +0200, Ingo Molnar wrote: > > > >> Any ballpark-figure numbers you can share with us? > > > > For one quake-3 based game we use for performance regression checking, > > 64-bit kernels run about 18 times faster now. That's the difference > > between using a zero-cost dynamic mapping and using ioremap_wc for each > > page. > > > > -- > > keith.packard@intel.com > > > > So I've put these patches into Fedora rawhide kernel to test, and > glxgears on my 945G hw went from 85fps to 380fps, clearly we would > want these patches upstream sooner rather than later.
yep, it's all lined up already in tip/core/resources, and got massively tested over the past few days. Will send a pull request to Linus tomorrow-ish - we need one final cleanup patch and then it's green to go.
Ingo
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