From: Jay Lan <jlan@engr.sgi.com>
To: Andrew Morton <akpm@osdl.org>
Cc: nagar@watson.ibm.com, balbir@in.ibm.com, csturtiv@sgi.com,
linux-kernel@vger.kernel.org
Subject: Re: [Patch][RFC] Disabling per-tgid stats on task exit in taskstats
Date: Wed, 28 Jun 2006 14:30:53 -0700 [thread overview]
Message-ID: <44A2F50D.8030306@engr.sgi.com> (raw)
In-Reply-To: <20060626113959.839d72bc.akpm@osdl.org>
Hi Andrew,
Testing with all delay-accounting patches as been in your 2.6.27-mm3
tree as of 6/26 afternoon (ie, including the send-tgid-once, and
avoid-sending-without-listeners patches), i do not see measurable
performance difference with and without tgid processing when the
exit rate was controlled to around 1000 exit/sec.
As a result i am OK to not include a design of a system-wise
init-time configuration option (for per-thread group data processing)
in the taskstats interface.
The ENOBUFS i experienced in my testing would start to happen
when exit rate at around 14000 exits/sec. While our fields confirmed
that a 1000 threads exit/sec was a real, i have no reason to be
concerned of 14000 exits/sec rate. ;)
Regards,
- jay
Andrew Morton wrote:
> On Mon, 26 Jun 2006 11:26:53 -0700
> Jay Lan <jlan@sgi.com> wrote:
>
>
>>>OK, please send the patch and I'll plan on sending this lot to Linus
>>>Thursdayish.
>>
>>These new patches are fresh out of Shailabh's stove (well, i have
>>seen one, but not the other yet) and i have not had chance to look
>>at them yet. No need to rush, does it?
>
>
> Thursday's a long way off ;)
>
> As long as we have a high level of confidence that any remaining issues
> will be fixed within a few weeks, this code is OK for a merge.
>
> There's a general agreement that the kernel needs this feature - people
> have been mucking around with it for years. Let's put the effort in and
> make it happen.
next prev parent reply other threads:[~2006-06-28 21:30 UTC|newest]
Thread overview: 134+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-06-09 7:41 [Patch][RFC] Disabling per-tgid stats on task exit in taskstats Shailabh Nagar
2006-06-09 8:00 ` Andrew Morton
2006-06-09 10:51 ` Balbir Singh
2006-06-09 11:21 ` Andrew Morton
2006-06-09 13:20 ` Shailabh Nagar
2006-06-09 18:25 ` Jay Lan
2006-06-09 19:12 ` Shailabh Nagar
2006-06-09 15:36 ` Balbir Singh
2006-06-09 18:35 ` Jay Lan
2006-06-09 19:31 ` Shailabh Nagar
2006-06-09 21:56 ` Shailabh Nagar
2006-06-09 22:42 ` Jay Lan
2006-06-09 23:22 ` Andrew Morton
2006-06-09 23:47 ` Jay Lan
2006-06-09 23:56 ` Andrew Morton
2006-06-10 12:21 ` Shailabh Nagar
2006-06-12 18:31 ` Jay Lan
2006-06-12 21:57 ` Shailabh Nagar
2006-06-10 13:05 ` Shailabh Nagar
2006-06-12 18:54 ` Jay Lan
2006-06-21 19:11 ` Jay Lan
2006-06-21 19:14 ` Jay Lan
2006-06-21 19:34 ` Shailabh Nagar
2006-06-21 23:35 ` Jay Lan
2006-06-21 23:45 ` Shailabh Nagar
2006-06-23 17:14 ` Shailabh Nagar
2006-06-23 18:19 ` Jay Lan
2006-06-23 18:53 ` Shailabh Nagar
2006-06-23 20:00 ` Jay Lan
2006-06-23 20:16 ` Shailabh Nagar
2006-06-23 20:36 ` Jay Lan
2006-06-23 21:19 ` Andrew Morton
2006-06-23 22:07 ` Jay Lan
2006-06-23 23:47 ` Andrew Morton
2006-06-24 2:59 ` Shailabh Nagar
2006-06-24 4:39 ` Andrew Morton
2006-06-24 5:59 ` Shailabh Nagar
2006-06-26 17:33 ` Jay Lan
2006-06-26 17:52 ` Shailabh Nagar
2006-06-26 17:55 ` Andrew Morton
2006-06-26 18:00 ` Shailabh Nagar
2006-06-26 18:12 ` Andrew Morton
2006-06-26 18:26 ` Jay Lan
2006-06-26 18:39 ` Andrew Morton
2006-06-26 18:49 ` Shailabh Nagar
2006-06-26 19:00 ` Jay Lan
2006-06-28 21:30 ` Jay Lan [this message]
2006-06-28 21:53 ` Andrew Morton
2006-06-28 22:02 ` Jay Lan
2006-06-29 8:40 ` Paul Jackson
2006-06-29 12:30 ` Valdis.Kletnieks
2006-06-29 16:44 ` Paul Jackson
2006-06-29 18:01 ` Andrew Morton
2006-06-29 18:07 ` Paul Jackson
2006-06-29 18:26 ` Paul Jackson
2006-06-29 19:15 ` Shailabh Nagar
2006-06-29 19:41 ` Paul Jackson
2006-06-29 21:42 ` Shailabh Nagar
2006-06-29 21:54 ` Jay Lan
2006-06-29 22:09 ` Shailabh Nagar
2006-06-29 22:23 ` Paul Jackson
2006-06-30 0:15 ` Shailabh Nagar
2006-06-30 0:40 ` Paul Jackson
2006-06-30 1:00 ` Shailabh Nagar
2006-06-30 1:05 ` Paul Jackson
[not found] ` <44A46C6C.1090405@watson.ibm.com>
2006-06-30 0:38 ` Paul Jackson
2006-06-30 2:21 ` Paul Jackson
2006-06-30 2:46 ` Shailabh Nagar
2006-06-30 2:54 ` Paul Jackson
2006-06-30 3:02 ` Paul Jackson
2006-06-29 19:22 ` Shailabh Nagar
2006-06-29 19:10 ` Shailabh Nagar
2006-06-29 19:23 ` Paul Jackson
2006-06-29 19:33 ` Andrew Morton
2006-06-29 19:43 ` Shailabh Nagar
2006-06-29 20:00 ` Andrew Morton
2006-06-29 22:13 ` Shailabh Nagar
2006-06-29 23:00 ` jamal
2006-06-29 20:01 ` Shailabh Nagar
2006-06-29 21:22 ` Paul Jackson
2006-06-29 22:54 ` jamal
2006-06-30 0:38 ` Shailabh Nagar
2006-06-30 1:05 ` Andrew Morton
2006-06-30 1:11 ` Shailabh Nagar
2006-06-30 1:30 ` jamal
2006-06-30 3:01 ` Shailabh Nagar
2006-06-30 12:45 ` jamal
2006-06-30 2:25 ` Paul Jackson
2006-06-30 2:35 ` Andrew Morton
2006-06-30 2:43 ` Paul Jackson
2006-06-29 19:33 ` Jay Lan
2006-06-30 18:53 ` Shailabh Nagar
2006-06-30 19:10 ` Shailabh Nagar
2006-06-30 19:19 ` Shailabh Nagar
2006-06-30 20:19 ` jamal
2006-06-30 22:50 ` Andrew Morton
2006-07-01 2:20 ` Shailabh Nagar
2006-07-01 2:43 ` Andrew Morton
2006-07-01 3:37 ` Shailabh Nagar
2006-07-01 3:51 ` Andrew Morton
2006-07-03 21:11 ` Shailabh Nagar
2006-07-03 21:41 ` Andrew Morton
2006-07-04 0:13 ` Shailabh Nagar
2006-07-04 0:38 ` Andrew Morton
2006-07-04 20:19 ` Paul Jackson
2006-07-04 20:22 ` Paul Jackson
2006-07-04 0:54 ` Shailabh Nagar
2006-07-04 1:01 ` Andrew Morton
2006-07-04 13:05 ` jamal
2006-07-04 15:18 ` Shailabh Nagar
2006-07-04 16:37 ` Shailabh Nagar
2006-07-04 19:24 ` jamal
2006-07-05 14:09 ` Shailabh Nagar
2006-07-05 20:25 ` Chris Sturtivant
2006-07-05 20:32 ` Shailabh Nagar
2006-07-03 4:53 ` Paul Jackson
2006-07-03 15:02 ` Shailabh Nagar
2006-07-03 15:55 ` Paul Jackson
2006-07-03 16:31 ` Paul Jackson
2006-07-04 0:09 ` Shailabh Nagar
2006-07-04 19:59 ` Paul Jackson
2006-07-05 17:20 ` Jay Lan
2006-07-05 18:18 ` Shailabh Nagar
2006-06-30 22:56 ` Andrew Morton
2006-06-29 18:05 ` Nick Piggin
2006-06-29 12:42 ` Shailabh Nagar
2006-06-24 3:08 ` Shailabh Nagar
2006-06-21 20:38 ` Andrew Morton
2006-06-21 21:31 ` Shailabh Nagar
2006-06-21 21:45 ` Jay Lan
2006-06-21 21:54 ` Andrew Morton
2006-06-21 22:19 ` Jay Lan
2006-06-21 21:59 ` Shailabh Nagar
2006-06-09 15:55 ` Chris Sturtivant
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=44A2F50D.8030306@engr.sgi.com \
--to=jlan@engr.sgi.com \
--cc=akpm@osdl.org \
--cc=balbir@in.ibm.com \
--cc=csturtiv@sgi.com \
--cc=linux-kernel@vger.kernel.org \
--cc=nagar@watson.ibm.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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).