From: Ingo Molnar <mingo@elte.hu>
To: eranian@gmail.com
Cc: linux-kernel@vger.kernel.org,
Thomas Gleixner <tglx@linutronix.de>,
linux-arch@vger.kernel.org,
Andrew Morton <akpm@linux-foundation.org>,
Eric Dumazet <dada1@cosmosbay.com>,
Robert Richter <robert.richter@amd.com>,
Arjan van de Veen <arjan@infradead.org>,
Peter Anvin <hpa@zytor.com>,
Peter Zijlstra <a.p.zijlstra@chello.nl>,
Steven Rostedt <rostedt@goodmis.org>,
David Miller <davem@davemloft.net>,
Paul Mackerras <paulus@samba.org>
Subject: Re: [patch] Performance Counters for Linux, v2
Date: Tue, 9 Dec 2008 12:02:46 +0100 [thread overview]
Message-ID: <20081209110246.GC21618@elte.hu> (raw)
In-Reply-To: <7c86c4470812082237ne58c814s7218cc663f3b49e9@mail.gmail.com>
* stephane eranian <eranian@googlemail.com> wrote:
> > There's also more generic x86 support: all 4 generic PMCs of Nehalem
> > / Core i7 are supported - i've run 4 instances of KernelTop and they
> > used up four separate PMCs.
>
> Core/Atom have 5 counters, Nehalem has 7. Why are you not using all of
> them already?
no, Nehalem has 4 generic purpose PMCs and 3 fixed-purpose PMCs (7
total), Core/Atom has 2 generic PMCs and 3 fixed-purpose PMCs (5 total).
Saying that it has 7 is misleading. (and even the generic PMCs have
constraints)
Ingo
next prev parent reply other threads:[~2008-12-09 11:03 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-12-08 1:22 [patch] Performance Counters for Linux, v2 Ingo Molnar
2008-12-08 1:49 ` Arjan van de Ven
2008-12-08 11:49 ` Ingo Molnar
2009-01-07 7:43 ` Zhang, Yanmin
2009-01-09 1:07 ` Zhang, Yanmin
2008-12-08 3:24 ` Paul Mackerras
2008-12-08 11:33 ` Ingo Molnar
2008-12-08 12:02 ` David Miller
2008-12-08 14:41 ` Andi Kleen
2008-12-08 22:03 ` Paul Mackerras
2008-12-09 13:00 ` Ingo Molnar
2008-12-09 23:00 ` Paul Mackerras
2008-12-08 8:32 ` Corey J Ashford
2008-12-09 6:37 ` stephane eranian
2008-12-09 11:02 ` Ingo Molnar [this message]
2008-12-09 11:11 ` David Miller
2008-12-09 11:22 ` Ingo Molnar
2008-12-09 11:29 ` David Miller
2008-12-09 12:14 ` Paolo Ciarrocchi
2008-12-09 13:46 ` Ingo Molnar
2008-12-09 16:39 ` Chris Friesen
2008-12-09 19:02 ` Ingo Molnar
2008-12-09 19:51 ` Chris Friesen
2008-12-09 16:46 ` Will Newton
2008-12-09 17:35 ` Chris Friesen
2008-12-09 21:16 ` stephane eranian
2008-12-09 21:16 ` stephane eranian
2008-12-09 22:19 ` Paul Mackerras
2008-12-09 22:40 ` Andi Kleen
2008-12-10 4:44 ` Paul Mackerras
2008-12-10 5:03 ` stephane eranian
2008-12-10 10:26 ` Andi Kleen
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