From: Bart Van Assche <bvanassche-HInyCGIudOg@public.gmane.org>
To: Jens Axboe <jaxboe-5c4llco8/ftWk0Htik3J/w@public.gmane.org>
Cc: Linus Torvalds
<torvalds-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org>,
"Rafael J. Wysocki" <rjw-KKrjLPT3xs0@public.gmane.org>,
Linux Kernel Mailing List
<linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
Kernel Testers List
<kernel-testers-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
Maciej Rutecki
<maciej.rutecki-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
Florian Mickler <florian-sVu6HhrpSfRAfugRpC6u6w@public.gmane.org>,
Neil Brown <neilb-l3A5Bk7waGM@public.gmane.org>
Subject: Re: [Bug #32982] Kernel locks up a few minutes after boot
Date: Mon, 18 Apr 2011 20:32:43 +0200 [thread overview]
Message-ID: <BANLkTimaekpwmK+z=ePE+XSP6GUteidwfw@mail.gmail.com> (raw)
In-Reply-To: <4DAC82E6.3020809-5c4llco8/ftWk0Htik3J/w@public.gmane.org>
On Mon, Apr 18, 2011 at 8:28 PM, Jens Axboe <jaxboe-5c4llco8/ftWk0Htik3J/w@public.gmane.org> wrote:
> On 2011-04-18 20:21, Bart Van Assche wrote:
>> a performance regression in the block layer not related to the md
>> issue. If I run a small block IOPS test on a block device created by
>> ib_srp (NOOP scheduler) I see about 11% less IOPS than with 2.6.38.3
>> (155.000 IOPS with 2.6.38.3 and 140.000 IOPS with 2.6.39-rc3+).
>
> That's not good. What's the test case?
Nothing more than a fio IOPS test:
fio --bs=512 --ioengine=libaio --buffered=0 --rw=read --thread
--iodepth=64 --numjobs=2 --loops=10000 --group_reporting --size=1G
--gtod_reduce=1 --name=iops-test --filename=/dev/${dev} --invalidate=1
Bart.
next prev parent reply other threads:[~2011-04-18 18:32 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-04-17 12:52 2.6.39-rc3-git7: Reported regressions from 2.6.38 Rafael J. Wysocki
2011-04-17 12:52 ` [Bug #32262] 2.6.38-git15+ IDE hangs boot Rafael J. Wysocki
2011-04-17 13:16 ` Pete Clements
[not found] ` <201104171316.p3HDGI8Y018237-HsB6010ddUOt6YA6xNGIRwkbCANdLtlA@public.gmane.org>
2011-04-17 13:28 ` Rafael J. Wysocki
2011-04-17 12:57 ` [Bug #32902] 2.6.39-rc1 doesn't boot on thinkpad t61p x86_64 Rafael J. Wysocki
2011-04-18 15:34 ` Alex Romosan
[not found] ` <87ipub7evl.fsf-z2gvhuI27Wv/eO6KEJJvLQ@public.gmane.org>
2011-04-18 21:22 ` Rafael J. Wysocki
2011-04-17 12:57 ` [Bug #32892] 2.6.39-rc1 data corruption with rtorrent Rafael J. Wysocki
2011-04-17 12:57 ` [Bug #33092] [regression] 2.6.39-rc1 - Beagleboard usbnet broken Rafael J. Wysocki
2011-04-17 12:57 ` [Bug #32982] Kernel locks up a few minutes after boot Rafael J. Wysocki
2011-04-17 17:03 ` Linus Torvalds
[not found] ` <BANLkTimeaHwBiZoz=isCM=qtBxoxaBqDUw-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2011-04-17 18:37 ` Bart Van Assche
[not found] ` <BANLkTi=1jO73DXDTD50bVpU82qphVKmRCw-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2011-04-17 21:07 ` NeilBrown
[not found] ` <20110418070711.12dd5cc1-wvvUuzkyo1EYVZTmpyfIwg@public.gmane.org>
2011-04-17 22:20 ` NeilBrown
2011-04-18 11:44 ` Jens Axboe
[not found] ` <4DAC2429.5000105-5c4llco8/ftWk0Htik3J/w@public.gmane.org>
2011-04-18 18:21 ` Bart Van Assche
[not found] ` <BANLkTinCWWYqnksxevho9TN3u6ZC_Rjzwg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2011-04-18 18:28 ` Jens Axboe
[not found] ` <4DAC82E6.3020809-5c4llco8/ftWk0Htik3J/w@public.gmane.org>
2011-04-18 18:32 ` Bart Van Assche [this message]
[not found] ` <BANLkTimaekpwmK+z=ePE+XSP6GUteidwfw-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2011-04-18 18:38 ` Jens Axboe
2011-04-19 9:09 ` Jens Axboe
[not found] ` <4DAD5156.2050300-5c4llco8/ftWk0Htik3J/w@public.gmane.org>
2011-04-19 11:16 ` Jens Axboe
2011-04-19 16:13 ` Bart Van Assche
[not found] ` <BANLkTimLOgY1opmAt+rxmYtLa-6adL98wg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2011-04-19 16:32 ` Linus Torvalds
[not found] ` <BANLkTikzRE7sA8_NNgVUpOqR_zGtw+YUvQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2011-04-19 17:43 ` Jens Axboe
2011-04-19 17:43 ` Jens Axboe
[not found] ` <4DAD6EF2.5070405-5c4llco8/ftWk0Htik3J/w@public.gmane.org>
2011-04-19 16:48 ` Christoph Hellwig
[not found] ` <20110419164815.GA30616-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org>
2011-04-19 17:06 ` Jens Axboe
2011-04-19 3:32 ` David Dillow
[not found] ` <1303183934.2585.12.camel-1q1vX8mYZiGLUyTwlgNVppKKF0rrzTr+@public.gmane.org>
2011-04-19 16:39 ` Bart Van Assche
2011-04-17 12:57 ` [Bug #33242] Lockdep splat in autofs with 2.6.39-rc2 Rafael J. Wysocki
2011-04-17 12:57 ` [Bug #33102] File's copied from client->linux server only copy 1st 64K data;rest is lost Rafael J. Wysocki
2011-04-17 12:57 ` [Bug #33272] drm related hard-hang Rafael J. Wysocki
[not found] ` <BANLkTik3sciXX58NtRk_03cPc=nHjdPtAQ@mail.gmail.com>
[not found] ` <BANLkTik3sciXX58NtRk_03cPc=nHjdPtAQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2011-04-17 18:22 ` Rafael J. Wysocki
2011-04-17 12:57 ` [Bug #33142] 2.6.39-rc2 regression: X201s fails to resume b77dcf8460ae57d4eb9fd3633eb4f97b8fb20716 Rafael J. Wysocki
2011-04-17 12:57 ` [Bug #33252] [regression 2.6.39-rc2][bisected] "perf, x86: P4 PMU - Read proper MSR register to catch" and NMIs Rafael J. Wysocki
2011-04-17 13:05 ` Cyrill Gorcunov
[not found] ` <4DAAE5AA.1090302-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2011-04-17 13:31 ` Rafael J. Wysocki
2011-04-17 12:57 ` [Bug #33342] [2.6.39-rc2][bisected] Constant DISK_MEDIA_CHANGE_EVENTS from CDROM drive Rafael J. Wysocki
-- strict thread matches above, loose matches on Subject: below --
2011-04-30 19:42 2.6.39-rc5-git4: Reported regressions from 2.6.38 Rafael J. Wysocki
2011-04-30 19:42 ` [Bug #32982] Kernel locks up a few minutes after boot Rafael J. Wysocki
2011-04-30 19:51 ` Linus Torvalds
[not found] ` <BANLkTik_aeVn9Jf_cWnoY0fNUm+tjMnixA@mail.gmail.com>
[not found] ` <BANLkTik_aeVn9Jf_cWnoY0fNUm+tjMnixA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2011-05-01 17:01 ` Linus Torvalds
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