[lkml]   [2013]   [Dec]   [11]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: 50 Watt idle power regression bisected to Linux-3.10
On Wed, Dec 11, 2013 at 03:56:55PM +0100, Ingo Molnar wrote:
> I think CLFLUSH should be pretty universally available, IIRC
> graphics drivers were using it rather heavily in combination with
> write-combining MTRRs, both on Linux and on Windows.

... and it is also very expensive. So I don't think it would be in
Intel's best interest to do CLFLUSH unconditionally on all families but
only on those which really need to.


Sent from a fat crate under my desk. Formatting is fine.

 \ /
  Last update: 2013-12-11 18:01    [W:0.074 / U:0.308 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site