All of lore.kernel.org
 help / color / mirror / Atom feed
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 RFC: revert request for cpuidle patches e11538d1 and 69a37bea 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

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20130730035731.GA701@linux-youquan.bj.intel.com \
    --to=youquan.song@linux.intel.com \
    --cc=arjan@linux.intel.com \
    --cc=daniel.lezcano@linaro.org \
    --cc=jeder@redhat.com \
    --cc=len.brown@intel.com \
    --cc=linux-kernel@vger.kernel.org \
    --cc=paulmck@linux.vnet.ibm.com \
    --cc=rafael.j.wysocki@intel.com \
    --cc=riel@redhat.com \
    --cc=youquan.song@intel.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.