lkml.org 
[lkml]   [2008]   [Oct]   [23]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: io resources and cached mappings (was: [git pull] drm patches for 2.6.27-rc1)
From
Date
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
[unhandled content-type:application/pgp-signature]
\
 
 \ /
  Last update: 2008-10-23 17:43    [from the cache]
©2003-2011 Jasper Spaans