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From: Youquan Song <youquan.song@linux.intel.com>
To: Jeremy Eder <jeder@redhat.com>
Cc: linux-kernel@vger.kernel.org, rafael.j.wysocki@intel.com,
	riel@redhat.com, youquan.song@intel.com,
	youquan.song@linux.intel.com, paulmck@linux.vnet.ibm.com,
	daniel.lezcano@linaro.org, arjan@linux.intel.com,
	len.brown@intel.com
Subject: Re: RFC:  revert request for cpuidle patches e11538d1 and 69a37bea
Date: Mon, 29 Jul 2013 23:57:31 -0400	[thread overview]
Message-ID: <20130730035731.GA701@linux-youquan.bj.intel.com> (raw)
In-Reply-To: <20130726173306.GB17985@jeder.rdu.redhat.com>

Hi Jeremy,

I try reproduce your result and then fix the issue, but I do not reproduce it
 yet.

I run at netperf-2.6.0 at one machine as server: netserver, other
machine: netperf -t TCP_RR -H $SERVER_IP -l 60. The target machine is
used in both client and server. I do not reproduce the performance drop
issue. I also notice the result is not stable, sometime it is high,
sometime is low. In sumarry, it is hard to make a definite result.

Can you try tell me how to reproduce the issue? how do you get the C0
data?

What's your config for kernel?  Do you enable CONFIG_NO_HZ_FULL=y or
only CONFIG_NO_HZ=y?


Thanks
-Youquan 

  parent reply	other threads:[~2013-07-29 16:14 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-07-26 17:33 Jeremy Eder
2013-07-26 18:13 ` Rik van Riel
2013-07-26 18:27   ` Arjan van de Ven
2013-07-26 18:29     ` Rik van Riel
2013-07-26 21:48       ` Rafael J. Wysocki
2013-07-27  0:36         ` Rafael J. Wysocki
2013-07-27  6:22           ` Len Brown
2013-07-27 12:10             ` Rafael J. Wysocki
2013-07-27  7:11       ` Daniel Lezcano
2013-07-29 11:49         ` Arjan van de Ven
2013-07-29 13:12         ` Arjan van de Ven
2013-07-29 14:14           ` Lorenzo Pieralisi
2013-07-29 14:29             ` Arjan van de Ven
2013-07-29 16:01               ` Lorenzo Pieralisi
2013-07-29 16:04                 ` Arjan van de Ven
2013-07-27  6:43 ` Daniel Lezcano
2013-07-30  3:57 ` Youquan Song [this message]
2013-07-29 16:59   ` Jeremy Eder
2013-08-02 18:19     ` Jeremy Eder

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