From: Jason Low <jason.low2@hp.com>
To: Preeti U Murthy <preeti@linux.vnet.ibm.com>
Cc: Ingo Molnar <mingo@redhat.com>,
Peter Zijlstra <peterz@infradead.org>,
LKML <linux-kernel@vger.kernel.org>,
Mike Galbraith <efault@gmx.de>,
Thomas Gleixner <tglx@linutronix.de>,
Paul Turner <pjt@google.com>, Alex Shi <alex.shi@intel.com>,
Vincent Guittot <vincent.guittot@linaro.org>,
Morten Rasmussen <morten.rasmussen@arm.com>,
Namhyung Kim <namhyung@kernel.org>,
Andrew Morton <akpm@linux-foundation.org>,
Kees Cook <keescook@chromium.org>, Mel Gorman <mgorman@suse.de>,
Rik van Riel <riel@redhat.com>,
aswin@hp.com, scott.norton@hp.com, chegu_vinod@hp.com,
Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Subject: Re: [RFC PATCH v2] sched: Limit idle_balance()
Date: Fri, 19 Jul 2013 12:28:10 -0700 [thread overview]
Message-ID: <1374262090.1830.16.camel@j-VirtualBox> (raw)
In-Reply-To: <51E921EC.5040501@linux.vnet.ibm.com>
On Fri, 2013-07-19 at 16:54 +0530, Preeti U Murthy wrote:
> Hi Json,
>
> I ran ebizzy and kernbench benchmarks on your 3.11-rc1 + your "V1
> patch" on a 1 socket, 16 core powerpc machine. I thought I would let you
> know the results before I try your V2.
>
> Ebizzy: 30 seconds run. The table below shows the improvement in the
> number of records completed. I have not spent enough time on the patch
> to explain such a big improvement.
>
> Number_of_threads %improvement_with_patch
> 4 41.86%
> 8 9.8%
> 12 34.77%
> 16 28.37%
>
> While on kernbench there was no significant change in the observation.
>
> I will try patch V2 and let you know the results.
Great to see those improvements so far. Thank you for testing this.
Jason
next prev parent reply other threads:[~2013-07-19 19:28 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-07-19 7:50 [RFC PATCH v2] sched: Limit idle_balance() Jason Low
2013-07-19 11:24 ` Preeti U Murthy
2013-07-19 19:28 ` Jason Low [this message]
2013-07-21 17:32 ` Preeti U Murthy
2013-07-22 17:42 ` Jason Low
2013-07-22 7:01 ` Srikar Dronamraju
2013-07-22 18:57 ` Jason Low
2013-07-23 11:03 ` Peter Zijlstra
2013-07-24 7:06 ` Jason Low
2013-07-23 11:06 ` Srikar Dronamraju
2013-07-23 12:05 ` Peter Zijlstra
2013-07-23 12:33 ` Mike Galbraith
2013-07-24 4:24 ` Jason Low
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=1374262090.1830.16.camel@j-VirtualBox \
--to=jason.low2@hp.com \
--cc=akpm@linux-foundation.org \
--cc=alex.shi@intel.com \
--cc=aswin@hp.com \
--cc=chegu_vinod@hp.com \
--cc=efault@gmx.de \
--cc=keescook@chromium.org \
--cc=linux-kernel@vger.kernel.org \
--cc=mgorman@suse.de \
--cc=mingo@redhat.com \
--cc=morten.rasmussen@arm.com \
--cc=namhyung@kernel.org \
--cc=peterz@infradead.org \
--cc=pjt@google.com \
--cc=preeti@linux.vnet.ibm.com \
--cc=riel@redhat.com \
--cc=scott.norton@hp.com \
--cc=srikar@linux.vnet.ibm.com \
--cc=tglx@linutronix.de \
--cc=vincent.guittot@linaro.org \
/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.