From: Peter Zijlstra <peterz@infradead.org>
To: Stephane Eranian <eranian@google.com>
Cc: Ingo Molnar <mingo@elte.hu>, Paul Mackerras <paulus@samba.org>,
"Metzger, Markus T" <markus.t.metzger@intel.com>,
lkml <linux-kernel@vger.kernel.org>,
Robert Richter <robert.richter@amd.com>,
"David S. Miller" <davem@davemloft.net>,
Jamie Iles <jamie.iles@picochip.com>,
Paul Mundt <lethal@linux-sh.org>,
Arjan van de Ven <arjan@infradead.org>,
"H. Peter Anvin" <hpa@zytor.com>,
perfmon2-devel@lists.sf.net
Subject: Re: [RFC][PATCH] perf_events, x86: PEBS support
Date: Thu, 04 Feb 2010 00:50:10 +0100 [thread overview]
Message-ID: <1265241010.24455.1627.camel@laptop> (raw)
In-Reply-To: <1265208012.24455.592.camel@laptop>
On Wed, 2010-02-03 at 15:40 +0100, Peter Zijlstra wrote:
>
> If only they would reset the counter on overflow instead of on record,
> that would solve quite a few issues I imagine.
So I tried enabling the regular PMC overflow interrupt and reprogramming
the counter from that, but touching the counter seems to destroy the
PEBS assist, so much for that idea.
next prev parent reply other threads:[~2010-02-03 23:50 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-02-02 16:56 [RFC][PATCH] perf_events, x86: PEBS support Peter Zijlstra
2010-02-02 18:26 ` Ingo Molnar
2010-02-02 18:33 ` Peter Zijlstra
2010-02-03 13:22 ` Stephane Eranian
2010-02-03 13:56 ` Peter Zijlstra
2010-02-03 14:07 ` Stephane Eranian
2010-02-03 14:19 ` Peter Zijlstra
2010-02-03 14:30 ` Stephane Eranian
2010-02-03 14:40 ` Peter Zijlstra
2010-02-03 14:54 ` Stephane Eranian
2010-02-03 15:12 ` Peter Zijlstra
2010-02-03 23:50 ` Peter Zijlstra [this message]
2010-02-03 23:51 ` Stephane Eranian
2010-02-04 0:03 ` Peter Zijlstra
2010-02-04 0:22 ` Stephane Eranian
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