lkml.org 
[lkml]   [2022]   [Sep]   [22]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
Date
SubjectRe: [PATCH] ACPI: processor_idle: Skip dummy wait for processors based on the Zen microarchitecture
On Thu, Sep 22, 2022 at 5:36 PM Borislav Petkov <bp@alien8.de> wrote:
>
> On Thu, Sep 22, 2022 at 05:21:21PM +0200, Rafael J. Wysocki wrote:
> > Well, it can be forced to use ACPI idle instead.
>
> Yeah, I did that earlier. The dummy IO read in question costs ~3K on
> average on my Coffeelake box here.

Well, that's the cost of forcing something non-default.

\
 
 \ /
  Last update: 2022-09-22 17:54    [W:1.112 / U:0.048 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site