From: Maarten Lankhorst <maarten.lankhorst@canonical.com>
To: lkp@lists.01.org
Subject: Re: [x86] 339a3922f6: +4.3% aim7 jobs-per-min
Date: Thu, 20 Feb 2014 14:13:20 +0100 [thread overview]
Message-ID: <5305FF70.2030406@canonical.com> (raw)
In-Reply-To: <20140220130646.GA22815@localhost>
[-- Attachment #1: Type: text/plain, Size: 945 bytes --]
op 20-02-14 14:06, Fengguang Wu schreef:
> Hi Maarten,
>
> We are glad to find that your commit 339a3922f68dcb7d93001f07b7e914d5cf6c066d
> ("decrease useless padding") increased aim disk_src performance by 4.3%:
>
> 74833276be6802b 339a3922f68dcb7d93001f07b
> --------------- -------------------------
> 511685 ~ 0% +4.3% 533571 ~ 0% TOTAL aim7.2000.jobs-per-min
> 77.30 ~ 0% -9.9% 69.66 ~ 0% TOTAL time.system_time
> 1.95 ~ 2% +7.0% 2.09 ~ 2% TOTAL iostat.sda.rrqm/s
> 23.57 ~ 0% -4.1% 22.60 ~ 0% TOTAL time.elapsed_time
> 425 ~ 0% -3.1% 412 ~ 0% TOTAL time.percent_of_cpu_this_job_got
> 7.59 ~ 0% -2.9% 7.37 ~ 0% TOTAL boottime.dhcp
> 15.24 ~ 0% -1.9% 14.94 ~ 0% TOTAL boottime.boot
>
Really? I just did it to get rid of the 15-byte nop sequences with tons of prefixes.
Interesting..
~Maarten
WARNING: multiple messages have this Message-ID (diff)
From: Maarten Lankhorst <maarten.lankhorst@canonical.com>
To: Fengguang Wu <fengguang.wu@intel.com>
Cc: LKML <linux-kernel@vger.kernel.org>, lkp@01.org
Subject: Re: [x86] 339a3922f6: +4.3% aim7 jobs-per-min
Date: Thu, 20 Feb 2014 14:13:20 +0100 [thread overview]
Message-ID: <5305FF70.2030406@canonical.com> (raw)
In-Reply-To: <20140220130646.GA22815@localhost>
op 20-02-14 14:06, Fengguang Wu schreef:
> Hi Maarten,
>
> We are glad to find that your commit 339a3922f68dcb7d93001f07b7e914d5cf6c066d
> ("decrease useless padding") increased aim disk_src performance by 4.3%:
>
> 74833276be6802b 339a3922f68dcb7d93001f07b
> --------------- -------------------------
> 511685 ~ 0% +4.3% 533571 ~ 0% TOTAL aim7.2000.jobs-per-min
> 77.30 ~ 0% -9.9% 69.66 ~ 0% TOTAL time.system_time
> 1.95 ~ 2% +7.0% 2.09 ~ 2% TOTAL iostat.sda.rrqm/s
> 23.57 ~ 0% -4.1% 22.60 ~ 0% TOTAL time.elapsed_time
> 425 ~ 0% -3.1% 412 ~ 0% TOTAL time.percent_of_cpu_this_job_got
> 7.59 ~ 0% -2.9% 7.37 ~ 0% TOTAL boottime.dhcp
> 15.24 ~ 0% -1.9% 14.94 ~ 0% TOTAL boottime.boot
>
Really? I just did it to get rid of the 15-byte nop sequences with tons of prefixes.
Interesting..
~Maarten
next prev parent reply other threads:[~2014-02-20 13:13 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-02-20 13:06 [x86] 339a3922f6: +4.3% aim7 jobs-per-min Fengguang Wu
2014-02-20 13:06 ` Fengguang Wu
2014-02-20 13:13 ` Maarten Lankhorst [this message]
2014-02-20 13:13 ` Maarten Lankhorst
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=5305FF70.2030406@canonical.com \
--to=maarten.lankhorst@canonical.com \
--cc=lkp@lists.01.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.