Re: [PATCH 2/7] Simple Performance Counters: x86_64 support

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To: Christoph Lameter <clameter@...>
Cc: <linux-kernel@...>
Date: Wednesday, August 1, 2007 - 6:53 am

Christoph Lameter <clameter@sgi.com> writes:


This function is broken in some cases (e.g Opteron with powernow or
AMD dual core or older Intel systems) and going away.  The TSCs tick
with different frequencies on different CPU there. In general i would
recommend to only report cycles.

-Andi
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Messages in current thread:
[PATCH 2/7] Simple Performance Counters: x86_64 support, Christoph Lameter, (Tue Jul 31, 7:25 pm)
Re: [PATCH 2/7] Simple Performance Counters: x86_64 support, Andi Kleen, (Wed Aug 1, 6:53 am)
Re: [PATCH 2/7] Simple Performance Counters: x86_64 support, Christoph Lameter, (Wed Aug 1, 1:52 pm)
Re: [PATCH 2/7] Simple Performance Counters: x86_64 support, Christoph Lameter, (Wed Aug 1, 2:29 pm)
Re: [PATCH 2/7] Simple Performance Counters: x86_64 support, Christoph Lameter, (Wed Aug 1, 2:45 pm)
Re: [PATCH 2/7] Simple Performance Counters: x86_64 support, Christoph Lameter, (Wed Aug 1, 2:58 pm)
Re: [PATCH 2/7] Simple Performance Counters: x86_64 support, Mathieu Desnoyers, (Fri Aug 17, 12:10 pm)