From: Peter Zijlstra <peterz@infradead.org>
To: eranian@google.com
Cc: linux-kernel@vger.kernel.org, mingo@elte.hu, paulus@samba.org,
davem@davemloft.net, fweisbec@gmail.com, robert.richter@amd.com,
perfmon2-devel@lists.sf.net, eranian@gmail.com
Subject: Re: [PATCH] perf_events: fix remapped count support
Date: Tue, 23 Mar 2010 18:41:27 +0100 [thread overview]
Message-ID: <1269366087.5109.143.camel@twins> (raw)
In-Reply-To: <4ba8f988.9804cc0a.4b1f.5d77@mx.google.com>
On Tue, 2010-03-23 at 18:25 +0200, Stephane Eranian wrote:
> This patch fixes the remapped counter support such that it now works
> on X86 processors.
(could you please not add all this whitespace in front? and make sure
it's no wider than 70 chars)
Also, I wouldn't say it fixes it, it's currently not broken, its plain
not implemented. So this patch adds support for rdpmc.
> For other architectures, e.g., PPC, SPARC, assuming they do offer the ability
> to read counts directly from user space, all that is needed is a couple of new
> arch specific functions:
Power already supports this, so if you just broke this Paul is going to
be unhappy.
next prev parent reply other threads:[~2010-03-23 17:41 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-03-23 16:25 [PATCH] perf_events: fix remapped count support Stephane Eranian
2010-03-23 17:41 ` Peter Zijlstra [this message]
2010-03-23 21:39 ` Stephane Eranian
2010-03-24 5:45 ` Paul Mackerras
2010-03-24 14:01 ` Stephane Eranian
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