From: Rick Jones <rick.jones2@hp.com>
To: Jean-Michel Hautbois <jhautbois@gmail.com>
Cc: netdev@vger.kernel.org
Subject: Re: Interpreting perf stat on netperf and netserver
Date: Thu, 19 Jan 2012 09:58:34 -0800 [thread overview]
Message-ID: <4F1859CA.6000407@hp.com> (raw)
In-Reply-To: <CAL8zT=jP4Bm=WM0=OLcRgeetzXb0f_ZL0TiDvPAhkbA9UuxpBA@mail.gmail.com>
On 01/19/2012 12:29 AM, Jean-Michel Hautbois wrote:
> 2012/1/18 Rick Jones<rick.jones2@hp.com>:
>> On 01/18/2012 03:33 AM, Jean-Michel Hautbois wrote:
>>>
>>> Hi all,
>>>
>>> I am currently using netperf/netserver in order to characterize a
>>> benet emulex network device on a machine with 2 Xeon5670.
>>> I am using the latest linux kernel from git (3.2.0+).
>>> I am facing several issues, and I am trying to understand the
>>> following perf stat launched on netserver :
>>>
>>> Performance counter stats for process id '5043':
>>
>>
>> If you aren't already you may want to gather system-wide data as well - not
>> everything networking is guaranteed to run in the netserver's (or netperf's)
>> context.
>>
>> Might also be good to include the netperf command line driving that
>> netserver. That will help folks know if the netserver is receiving data
>> (_STREAM), sending data (_MAERTS) or both (_RR) (though perhaps that can be
>> gleaned from the routine names in the profile.
>
> Well, I am only launching netserver without any parameter.
The netperf command line, not netserver :) The netperf command line
will tell us what the netserver was asked to and was presumably doing at
the time the profile was taken.
happy benchmarking,
rick
next prev parent reply other threads:[~2012-01-19 17:58 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-01-18 11:33 Interpreting perf stat on netperf and netserver Jean-Michel Hautbois
2012-01-18 17:49 ` Rick Jones
2012-01-19 8:29 ` Jean-Michel Hautbois
2012-01-19 17:58 ` Rick Jones [this message]
2012-01-20 7:20 ` Jean-Michel Hautbois
2012-01-19 9:24 ` Eric Dumazet
2012-01-19 10:26 ` Jean-Michel Hautbois
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