From: Maynard Johnson <maynardj@us.ibm.com>
To: David Ahern <dsahern@gmail.com>
Cc: linux-perf-users@vger.kernel.org, suka@us.ibm.com
Subject: Re: --mmap-pages option seemingly has no effect to help with LOST samples
Date: Tue, 26 Jun 2012 15:32:17 -0500 [thread overview]
Message-ID: <4FEA1C51.4010701@us.ibm.com> (raw)
In-Reply-To: <4FEA18A5.8090106@gmail.com>
On 06/26/2012 03:16 PM, David Ahern wrote:
> On 6/25/12 8:10 AM, Maynard Johnson wrote:
>
>> Just an FYI -- adding ":u" doesn't help for RHEL 6.2. Thanks much for the help so far.
>>
>
> What kind of processor are you using and what is the output of:
> dmesg |grep Perf
As I mentioned, I'm seeing this symptom (incorrect counts) on both my Intel Core 2 Duo laptop and on an IBM POWER7 server. On the POWER7, 'dmesg | grep Perf' shows nothing. On my laptop, I get "Performance Events: PEBS fmt0+, Core2 events, Intel PMU driver."
-Maynard
>
> David
> --
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>
next prev parent reply other threads:[~2012-06-26 20:32 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-06-12 20:55 --mmap-pages option seemingly has no effect to help with LOST samples Maynard Johnson
2012-06-12 21:05 ` David Ahern
2012-06-13 15:35 ` Maynard Johnson
2012-06-13 15:48 ` David Ahern
2012-06-22 15:59 ` Maynard Johnson
2012-06-22 16:16 ` David Ahern
2012-06-22 19:20 ` Maynard Johnson
2012-06-22 19:44 ` David Ahern
2012-06-22 20:23 ` Maynard Johnson
2012-06-22 20:38 ` David Ahern
2012-06-25 14:10 ` Maynard Johnson
2012-06-26 20:16 ` David Ahern
2012-06-26 20:32 ` Maynard Johnson [this message]
2012-06-22 19:23 ` David Ahern
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