From: Borislav Petkov <bp@alien8.de>
To: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Linus Torvalds <torvalds@linux-foundation.org>,
Mike Galbraith <efault@gmx.de>, Mel Gorman <mgorman@suse.de>,
Nikolay Ulyanitsky <lystor@gmail.com>,
linux-kernel@vger.kernel.org,
Andreas Herrmann <andreas.herrmann3@amd.com>,
Andrew Morton <akpm@linux-foundation.org>,
Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@kernel.org>,
Suresh Siddha <suresh.b.siddha@intel.com>
Subject: Re: 20% performance drop on PostgreSQL 9.2 from kernel 3.5.3 to 3.6-rc5 on AMD chipsets - bisected
Date: Tue, 25 Sep 2012 19:00:58 +0200 [thread overview]
Message-ID: <20120925170058.GC30158@x1.osrc.amd.com> (raw)
In-Reply-To: <20120925131736.GA30652@x1.osrc.amd.com>
On Tue, Sep 25, 2012 at 03:17:36PM +0200, Borislav Petkov wrote:
> For example, I did some measurements a couple of days ago on Bulldozer
> of tbench with and without select_idle_sibling:
Here are updated benchmark results with your patch here:
http://marc.info/?l=linux-kernel&m=134850871822587
I think this pretty much confirms Mel's results.
tbench runs single-socket OR-B (box has 8 cores, 4 CUs) (tbench_srv localhost), tbench default settings as in debian testing
# clients 1 2 4 8 12 16
3.6-rc6+tip/auto-latest 115.91 238.571 469.606 1865.77 1863.08 1851.46
3.6-rc6+tip/auto-latest-kill select_idle_sibling(): 354.619 534.714 900.069 1969.35 1955.91 1940.84
3.6-rc6+tip/auto-latest-revert-the-revert 114.001 223.171 408.507 1771.48 1757.08 1736.12
3.6-rc7+tip/auto-latest-select_idle_sibling-lists 107.39 222.439 435.255 1659.42 1697.43 1685.92
3.6-rc6+tip/auto-latest
-----------------------
Throughput 115.91 MB/sec 1 clients 1 procs max_latency=0.296 ms
Throughput 238.571 MB/sec 2 clients 2 procs max_latency=1.296 ms
Throughput 469.606 MB/sec 4 clients 4 procs max_latency=0.340 ms
Throughput 1865.77 MB/sec 8 clients 8 procs max_latency=3.393 ms
Throughput 1863.08 MB/sec 12 clients 12 procs max_latency=0.322 ms
Throughput 1851.46 MB/sec 16 clients 16 procs max_latency=2.059 ms
3.6-rc6+tip/auto-latest-kill select_idle_sibling()
--------------------------------------------------
Throughput 354.619 MB/sec 1 clients 1 procs max_latency=0.321 ms
Throughput 534.714 MB/sec 2 clients 2 procs max_latency=2.651 ms
Throughput 900.069 MB/sec 4 clients 4 procs max_latency=10.823 ms
Throughput 1969.35 MB/sec 8 clients 8 procs max_latency=1.630 ms
Throughput 1955.91 MB/sec 12 clients 12 procs max_latency=3.236 ms
Throughput 1940.84 MB/sec 16 clients 16 procs max_latency=0.314 ms
3.6-rc6+tip/auto-latest-revert-the-revert
-----------------------------------------
Throughput 114.001 MB/sec 1 clients 1 procs max_latency=0.352 ms
Throughput 223.171 MB/sec 2 clients 2 procs max_latency=0.348 ms
Throughput 408.507 MB/sec 4 clients 4 procs max_latency=0.388 ms
Throughput 1771.48 MB/sec 8 clients 8 procs max_latency=0.280 ms
Throughput 1757.08 MB/sec 12 clients 12 procs max_latency=3.280 ms
Throughput 1736.12 MB/sec 16 clients 16 procs max_latency=0.333 ms
3.6-rc7+tip/auto-latest-select_idle_sibling-lists
-------------------------------------------------
Throughput 107.39 MB/sec 1 clients 1 procs max_latency=0.372 ms
Throughput 222.439 MB/sec 2 clients 2 procs max_latency=0.345 ms
Throughput 435.255 MB/sec 4 clients 4 procs max_latency=0.346 ms
Throughput 1659.42 MB/sec 8 clients 8 procs max_latency=3.497 ms
Throughput 1697.43 MB/sec 12 clients 12 procs max_latency=3.205 ms
Throughput 1685.92 MB/sec 16 clients 16 procs max_latency=0.331 ms
--
Regards/Gruss,
Boris.
next prev parent reply other threads:[~2012-09-25 17:00 UTC|newest]
Thread overview: 115+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-09-14 7:47 20% performance drop on PostgreSQL 9.2 from kernel 3.5.3 to 3.6-rc5 on AMD chipsets Nikolay Ulyanitsky
2012-09-14 18:40 ` Borislav Petkov
2012-09-14 18:51 ` Borislav Petkov
2012-09-14 21:27 ` 20% performance drop on PostgreSQL 9.2 from kernel 3.5.3 to 3.6-rc5 on AMD chipsets - bisected Borislav Petkov
2012-09-14 21:40 ` Peter Zijlstra
2012-09-14 21:44 ` Linus Torvalds
2012-09-14 21:56 ` Peter Zijlstra
2012-09-14 21:59 ` Peter Zijlstra
2012-09-15 3:57 ` Mike Galbraith
2012-09-14 22:01 ` Linus Torvalds
2012-09-14 22:10 ` Peter Zijlstra
2012-09-14 22:20 ` Linus Torvalds
2012-09-14 22:14 ` Borislav Petkov
2012-09-14 21:45 ` Borislav Petkov
2012-09-14 21:42 ` Linus Torvalds
2012-09-15 3:33 ` Mike Galbraith
2012-09-15 16:16 ` Andi Kleen
2012-09-15 16:36 ` Mike Galbraith
2012-09-15 17:08 ` richard -rw- weinberger
2012-09-16 4:48 ` Mike Galbraith
2012-09-15 21:32 ` Alan Cox
2012-09-16 4:35 ` Mike Galbraith
2012-09-16 19:57 ` Linus Torvalds
2012-09-17 8:08 ` Mike Galbraith
2012-09-17 10:07 ` Ingo Molnar
2012-09-17 10:47 ` Mike Galbraith
2012-09-17 14:39 ` Andi Kleen
2012-09-19 12:35 ` Mike Galbraith
2012-09-19 14:54 ` Ingo Molnar
2012-09-19 15:23 ` Mike Galbraith
2012-09-24 15:00 ` Mel Gorman
2012-09-24 15:23 ` Nikolay Ulyanitsky
2012-09-24 15:53 ` Borislav Petkov
2012-09-24 15:30 ` Peter Zijlstra
2012-09-24 15:51 ` Mike Galbraith
2012-09-24 15:52 ` Linus Torvalds
2012-09-24 16:07 ` Peter Zijlstra
2012-09-24 16:33 ` Linus Torvalds
2012-09-24 16:54 ` Peter Zijlstra
2012-09-25 12:10 ` Hillf Danton
2012-09-24 16:12 ` Peter Zijlstra
2012-09-24 16:30 ` Linus Torvalds
2012-09-24 16:52 ` Borislav Petkov
2012-09-24 16:54 ` Peter Zijlstra
2012-09-24 17:44 ` Peter Zijlstra
2012-09-25 13:23 ` Mel Gorman
2012-09-25 14:36 ` Peter Zijlstra
2012-09-24 18:26 ` Mike Galbraith
2012-09-24 19:12 ` Linus Torvalds
2012-09-24 19:20 ` Borislav Petkov
2012-09-25 1:57 ` Mike Galbraith
2012-09-25 2:11 ` Linus Torvalds
2012-09-25 2:49 ` Mike Galbraith
2012-09-25 3:10 ` Linus Torvalds
2012-09-25 3:20 ` Mike Galbraith
2012-09-25 3:32 ` Linus Torvalds
2012-09-25 3:43 ` Mike Galbraith
2012-09-25 11:58 ` Peter Zijlstra
2012-09-25 13:17 ` Borislav Petkov
2012-09-25 17:00 ` Borislav Petkov [this message]
2012-09-25 17:21 ` Linus Torvalds
2012-09-25 18:42 ` Borislav Petkov
2012-09-25 19:08 ` Linus Torvalds
2012-09-26 2:23 ` Mike Galbraith
2012-09-26 17:17 ` Borislav Petkov
2012-09-26 2:00 ` Mike Galbraith
2012-09-26 2:22 ` Linus Torvalds
2012-09-26 2:42 ` Mike Galbraith
2012-09-26 17:15 ` Borislav Petkov
2012-09-26 16:32 ` Borislav Petkov
2012-09-26 18:19 ` Linus Torvalds
2012-09-26 21:37 ` Borislav Petkov
2012-09-27 5:09 ` Mike Galbraith
2012-09-27 5:18 ` Borislav Petkov
2012-09-27 5:44 ` Mike Galbraith
2012-09-27 5:47 ` Ingo Molnar
2012-09-27 5:59 ` Ingo Molnar
2012-09-27 6:34 ` Mike Galbraith
2012-09-27 6:41 ` Ingo Molnar
2012-09-27 6:54 ` Mike Galbraith
2012-09-27 7:10 ` Ingo Molnar
2012-09-27 16:25 ` Borislav Petkov
2012-09-27 17:44 ` Linus Torvalds
2012-09-27 18:05 ` Borislav Petkov
2012-09-27 18:19 ` Linus Torvalds
2012-09-27 18:29 ` Peter Zijlstra
2012-09-27 19:24 ` Borislav Petkov
2012-09-28 3:50 ` Mike Galbraith
2012-09-28 12:30 ` Borislav Petkov
2012-09-27 19:40 ` Linus Torvalds
2012-09-28 4:13 ` Mike Galbraith
2012-09-28 8:37 ` Peter Zijlstra
2012-09-27 7:17 ` david
2012-09-27 7:55 ` Mike Galbraith
2012-09-27 10:20 ` Borislav Petkov
2012-09-27 13:38 ` Mike Galbraith
2012-09-27 16:55 ` david
2012-09-27 4:32 ` Mike Galbraith
2012-09-27 8:21 ` Peter Zijlstra
2012-09-27 16:48 ` david
2012-09-27 17:38 ` Peter Zijlstra
2012-09-27 17:45 ` david
2012-09-27 18:09 ` Peter Zijlstra
2012-09-27 18:15 ` Linus Torvalds
2012-09-27 18:24 ` Borislav Petkov
2012-09-25 1:39 ` Mike Galbraith
2012-09-25 21:11 ` Suresh Siddha
2012-09-25 4:16 ` Mike Galbraith
2012-09-15 4:11 ` Mike Galbraith
[not found] ` <CA+55aFz1A7HbMYS9o-GTS5Zm=Xx8MUD7cR05GMVo--2E34jcgQ@mail.gmail.com>
2012-09-15 4:42 ` Mike Galbraith
2012-09-15 10:44 ` Borislav Petkov
2012-09-15 14:47 ` Mike Galbraith
2012-09-15 15:18 ` Borislav Petkov
2012-09-15 16:13 ` Mike Galbraith
2012-09-15 19:44 ` Borislav Petkov
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=20120925170058.GC30158@x1.osrc.amd.com \
--to=bp@alien8.de \
--cc=a.p.zijlstra@chello.nl \
--cc=akpm@linux-foundation.org \
--cc=andreas.herrmann3@amd.com \
--cc=efault@gmx.de \
--cc=linux-kernel@vger.kernel.org \
--cc=lystor@gmail.com \
--cc=mgorman@suse.de \
--cc=mingo@kernel.org \
--cc=suresh.b.siddha@intel.com \
--cc=tglx@linutronix.de \
--cc=torvalds@linux-foundation.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 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).