[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, 11 Dec 2013, Ingo Molnar wrote:
> Another thing that is required I think is to issue a write barrier
> before CLFLUSH instruction. By my (possibly incorrect ...) reading of
> the documentation CLFLUSH does not appear to be ordered (at all), so
> it might execute before the modification to the affected memory?

We already have a write barrier in the code which modifies



 \ /
  Last update: 2013-12-11 16:41    [W:0.262 / U:0.092 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site