From: Mike Galbraith <efault@gmx.de>
To: Lin Ming <ming.m.lin@intel.com>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
Kernel Testers List <kernel-testers@vger.kernel.org>,
Ingo Molnar <mingo@elte.hu>,
Peter Zijlstra <peterz@infradead.org>,
venkatesh.pallipadi@intel.com, Len Brown <lenb@kernel.org>,
ACPI Devel Maling List <linux-acpi@vger.kernel.org>
Subject: Re: [Bug #15192] netperf ~50% regression with 2.6.33-rc1, bisect to 1b9508f
Date: Mon, 22 Feb 2010 05:59:22 +0100 [thread overview]
Message-ID: <1266814762.6072.3.camel@marge.simson.net> (raw)
In-Reply-To: <1266652377.3464.6.camel@minggr.sh.intel.com>
On Sat, 2010-02-20 at 15:52 +0800, Lin Ming wrote:
> On Mon, 2010-02-01 at 16:04 +0800, Mike Galbraith wrote:
> > On Mon, 2010-02-01 at 01:22 +0100, Rafael J. Wysocki wrote:
> > > This message has been generated automatically as a part of a report
> > > of recent regressions.
> > >
> > > The following bug entry is on the current list of known regressions
> > > from 2.6.32. Please verify if it still should be listed and let me know
> > > (either way).
> >
> > Yes, it should remain open. We're currently waiting for some data from
> > Lin Ming. The regression itself isn't making much sense.. a kernel with
> > NEWIDLE disabled should show the same performance, but does not.
>
> (sorry for late response, I'm just back from vacation)
>
> We finally located this to a bug in mwait based C-state entry.
> Venki's patch has fixed it.
> http://patchwork.kernel.org/patch/78544/
>
> Venki, this is the original report,
> http://marc.info/?l=linux-kernel&m=126441481427331&w=4
Excellent, mystery solved. (adds acpi)
-Mike
next prev parent reply other threads:[~2010-02-22 4:59 UTC|newest]
Thread overview: 76+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-02-01 0:18 2.6.33-rc6: Reported regressions from 2.6.32 Rafael J. Wysocki
2010-02-01 0:19 ` [Bug #14791] Something has been broken in the network stack this week Rafael J. Wysocki
2010-02-01 0:46 ` Ben Hutchings
2010-02-01 0:22 ` [Bug #14999] possible circular locking dependency detected in rfkill at suspend Rafael J. Wysocki
2010-02-01 0:22 ` [Bug #15036] soft lockup in dmesg after suspend/resume Rafael J. Wysocki
2010-02-01 0:22 ` [Bug #15039] leds_alix2: can't allocate I/O for GPIO Rafael J. Wysocki
2010-02-01 0:22 ` [Bug #14937] WARNING: at kernel/lockdep.c:2830 Rafael J. Wysocki
2010-02-01 0:22 ` [Bug #14792] Misdetection of the TV output Rafael J. Wysocki
2010-02-01 0:22 ` [Bug #14949] drm_vm.c:drm_mmap: possible circular locking dependency detected Rafael J. Wysocki
2010-02-01 18:01 ` Borislav Petkov
[not found] ` <9ea470501002011001s7734a20ft4dd5d181baf714c3-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2010-02-02 20:46 ` Rafael J. Wysocki
2010-02-02 20:58 ` Borislav Petkov
[not found] ` <20100202205857.GA30024-f9CnO7I+Q6zU6FkGJEIX5A@public.gmane.org>
2010-02-02 21:12 ` Rafael J. Wysocki
2010-02-03 2:18 ` Greg KH
2010-02-01 0:22 ` [Bug #15025] Oops in ext4 driver Rafael J. Wysocki
2010-02-01 0:22 ` [Bug #14950] tbench regression with 2.6.33-rc1 Rafael J. Wysocki
2010-02-01 7:57 ` Mike Galbraith
[not found] ` <1265011035.6220.8.camel-YqMYhexLQo1vAv1Ojkdn7Q@public.gmane.org>
2010-02-02 20:45 ` Rafael J. Wysocki
2010-02-01 0:22 ` [Bug #15124] PCI host bridge windows ignored (works with pci=use_crs) Rafael J. Wysocki
2010-02-01 5:40 ` Yinghai Lu
2010-02-02 20:42 ` Rafael J. Wysocki
2010-02-02 20:50 ` Jeff Garrett
[not found] ` <20100202205031.GB13949-184d8XiO+QJg9hUCZPvPmw@public.gmane.org>
2010-02-02 21:13 ` Rafael J. Wysocki
2010-02-02 20:55 ` Bjorn Helgaas
2010-02-02 21:15 ` Rafael J. Wysocki
2010-02-01 0:22 ` [Bug #15119] iwl_bg_scan_completed: WARN on scan complete Rafael J. Wysocki
2010-02-01 0:22 ` [Bug #15076] System panic under load with clockevents_program_event Rafael J. Wysocki
2010-02-01 7:15 ` okias
[not found] ` <c2673ca61001312315s3e50611fm81171ddca6d19477-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2010-02-02 20:44 ` Rafael J. Wysocki
2010-02-01 0:22 ` [Bug #15114] X.org hang with [drm:i915_gem_do_execbuffer] *ERROR* in dmesg Rafael J. Wysocki
2010-02-01 0:22 ` [Bug #15043] Display goes off with i915.powersave=1 after suspend-resume Rafael J. Wysocki
2010-02-04 20:08 ` Soeren Sonnenburg
2010-02-04 20:42 ` Rafael J. Wysocki
[not found] ` <201002042142.02127.rjw-KKrjLPT3xs0@public.gmane.org>
2010-02-05 19:29 ` Jesse Barnes
2010-02-06 5:11 ` Soeren Sonnenburg
2010-02-06 5:53 ` Soeren Sonnenburg
2010-02-01 0:22 ` [Bug #15125] hung task - jbd2/dm-1-8 (during raid rebuild) Rafael J. Wysocki
2010-02-01 0:42 ` Michael Breuer
2010-02-01 17:39 ` Michael Breuer
[not found] ` <4B6711D0.4060300-P//MSfjsEjDQT0dZR+AlfA@public.gmane.org>
2010-02-02 20:42 ` Rafael J. Wysocki
2010-02-01 0:22 ` [Bug #15139] e1000: transmit queue 0 timed out Rafael J. Wysocki
2010-02-01 0:22 ` [Bug #15138] evdev regression on macbook Rafael J. Wysocki
2010-02-01 0:22 ` [Bug #15144] HDA Intel Audio hang on boot Rafael J. Wysocki
2010-02-01 2:01 ` Sid Boyce
[not found] ` <4B6635F1.8060909-QgLWrMLu8clzjhtm8Ag3mw@public.gmane.org>
2010-02-01 6:43 ` Takashi Iwai
[not found] ` <s5h3a1lh2wr.wl%tiwai-l3A5Bk7waGM@public.gmane.org>
2010-02-02 20:40 ` Rafael J. Wysocki
[not found] ` <201002022140.06721.rjw-KKrjLPT3xs0@public.gmane.org>
2010-02-03 2:37 ` Sid Boyce
2010-02-14 20:29 ` Sid Boyce
2010-02-14 21:50 ` Rafael J. Wysocki
2010-02-01 0:22 ` [Bug #15142] "INFO: possible circular locking dependency detected" Rafael J. Wysocki
2010-02-01 0:22 ` [Bug #15192] netperf ~50% regression with 2.6.33-rc1, bisect to 1b9508f Rafael J. Wysocki
2010-02-01 8:04 ` Mike Galbraith
[not found] ` <1265011447.6220.15.camel-YqMYhexLQo1vAv1Ojkdn7Q@public.gmane.org>
2010-02-02 20:38 ` Rafael J. Wysocki
2010-02-20 7:52 ` Lin Ming
2010-02-22 4:59 ` Mike Galbraith [this message]
2010-02-01 0:22 ` [Bug #15195] kernel BUG at include/net/netns/generic.h:41, pfkey_create+0x36/0x18b [af_key] Rafael J. Wysocki
2010-02-01 0:22 ` [Bug #15199] sata_nv and no /dev files Rafael J. Wysocki
2010-02-01 0:22 ` [Bug #15196] kmem_cache_create: duplicate cache ccid2_h Rafael J. Wysocki
2010-02-01 3:30 ` Xiaotian Feng
[not found] ` <7b6bb4a51001311930i7d72f60dj3b15ca3e1a715607-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2010-02-01 7:20 ` David Miller
2010-02-01 11:55 ` Neil Horman
2010-02-01 12:49 ` David Miller
[not found] ` <20100201.044911.15611947.davem-fT/PcQaiUtIeIZ0/mPfg9Q@public.gmane.org>
2010-02-01 13:01 ` Neil Horman
2010-02-01 15:06 ` Heinz Diehl
[not found] ` <20100201150605.GA6175-HjJ2MNWy62to6+H+lsi3Gti2O/JbrIOy@public.gmane.org>
2010-02-07 10:54 ` Heinz Diehl
[not found] ` <20100207105448.GA6623-HjJ2MNWy62to6+H+lsi3Gti2O/JbrIOy@public.gmane.org>
2010-02-07 11:42 ` Rafael J. Wysocki
2010-02-01 0:22 ` [Bug #15198] Radeon KMS regression Rafael J. Wysocki
2010-02-02 0:04 ` Kevin Winchester
[not found] ` <1265069090.1515.1.camel-bi+AKbBUZKY6gyzm1THtWbp2dZbC/Bob@public.gmane.org>
2010-02-02 20:25 ` Rafael J. Wysocki
2010-02-01 0:22 ` [Bug #15200] NFS problems in 2.6.33-rc6: Unknown error 526 Rafael J. Wysocki
2010-02-01 0:22 ` [Bug #15202] lockdep warning during elevator_switch Rafael J. Wysocki
-- strict thread matches above, loose matches on Subject: below --
2010-02-07 22:16 2.6.33-rc7: Reported regressions from 2.6.32 Rafael J. Wysocki
2010-02-07 22:28 ` [Bug #15192] netperf ~50% regression with 2.6.33-rc1, bisect to 1b9508f Rafael J. Wysocki
2010-02-14 23:31 2.6.33-rc8: Reported regressions from 2.6.32 Rafael J. Wysocki
2010-02-14 23:38 ` [Bug #15192] netperf ~50% regression with 2.6.33-rc1, bisect to 1b9508f Rafael J. Wysocki
2010-03-21 20:27 2.6.34-rc2: Reported regressions 2.6.32 -> 2.6.33 Rafael J. Wysocki
2010-03-21 20:30 ` [Bug #15192] netperf ~50% regression with 2.6.33-rc1, bisect to 1b9508f Rafael J. Wysocki
2010-03-22 5:28 ` Mike Galbraith
[not found] ` <1269235717.19079.4.camel-YqMYhexLQo1vAv1Ojkdn7Q@public.gmane.org>
2010-03-22 21:33 ` Rafael J. Wysocki
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