lkml.org 
[lkml]   [2012]   [Feb]   [17]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: perf, x86: Disable PEBS on SandyBridge chips
On 2/17/12 2:40 PM, H. Peter Anvin wrote:
> On 02/17/2012 07:12 AM, Peter Zijlstra wrote:
>> On Fri, 2012-02-17 at 13:39 +0100, Maarten Lankhorst wrote:
>>> Hey Peter,
>>>
>>> Why is PEBS disabled? If I look at the intel_clovertown_quirks I can see
>>> why it's disabled for that cpu, but the sandy bridge one lacks any kind
>>> of clarification or information on why, or how I can learn more.
>>
>> hpa, could you get the official Intel answer on this?
>
> *Where* is PEBS disabled?

arch/x86/kernel/cpu/perf_event_intel.c,
intel_sandybridge_quirk()

David


\
 
 \ /
  Last update: 2012-02-17 23:11    [W:0.027 / U:0.664 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site