From: Thomas Gleixner <tglx@linutronix.de>
To: Alex Shi <alex.shi@intel.com>
Cc: hpa@linux.intel.com, tim.c.chen@linux.intel.com,
linux-kernel@vger.kernel.org, andi.kleen@intel.com,
a.p.zijlstra@chello.nl, mingo@elte.hu
Subject: Re: [URGENT rfc patch 0/3] tsc clocksource bug fix
Date: Thu, 4 Jul 2013 13:00:52 +0200 (CEST) [thread overview]
Message-ID: <alpine.DEB.2.02.1307041300020.11637@ionos.tec.linutronix.de> (raw)
In-Reply-To: <1372916056-24301-1-git-send-email-alex.shi@intel.com>
On Thu, 4 Jul 2013, Alex Shi wrote:
> We find some benchmarks drop a lot on tip/sched/core on many Intel boxes,
> like oltp, tbench, hackbench etc. and bisected the commit 5d33b883ae
> cause this regression. Due to this commit, the clocksource was changed
> to hpet from tsc even tsc will be set CLOCK_SOURCE_VALID_FOR_HRES later
> in clocksource_watchdog.
5d33b883ae is not in tip/sched/core. So what are you testing and
bisecting?
Thanks,
tglx
next prev parent reply other threads:[~2013-07-04 11:00 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-07-04 5:34 [URGENT rfc patch 0/3] tsc clocksource bug fix Alex Shi
2013-07-04 5:34 ` [PATCH 1/3] clocksource: clean up clocksource_select Alex Shi
2013-07-04 9:57 ` Thomas Gleixner
2013-07-04 10:21 ` Alex Shi
2013-07-04 10:27 ` Thomas Gleixner
2013-07-05 1:22 ` Alex Shi
2013-07-04 5:34 ` [PATCH 2/3] clockesource: set override clocksource Alex Shi
2013-07-04 10:23 ` Thomas Gleixner
2013-07-04 5:34 ` [PATCH 3/3] clocksource: fix can not set tsc as clocksource bug Alex Shi
2013-07-04 10:55 ` Thomas Gleixner
2013-07-04 13:04 ` Thomas Gleixner
2013-07-04 20:46 ` [PATCH] clocksource: Reselect clocksource when watchdog validated Thomas Gleixner
2013-07-05 1:38 ` Alex Shi
2013-07-05 9:13 ` [tip:timers/core] clocksource: Reselect clocksource when watchdog validated high-res capability tip-bot for Thomas Gleixner
2013-07-05 2:48 ` [PATCH 3/3] clocksource: fix can not set tsc as clocksource bug Alex Shi
2013-07-05 5:41 ` Thomas Gleixner
2013-07-05 6:44 ` Alex Shi
2013-07-04 7:58 ` [URGENT rfc patch 0/3] tsc clocksource bug fix Peter Zijlstra
2013-07-04 8:13 ` Alex Shi
2013-07-05 14:23 ` Frederic Weisbecker
2013-07-05 14:38 ` Peter Zijlstra
2013-07-05 15:24 ` Thomas Gleixner
2013-07-05 21:22 ` Peter Zijlstra
2013-07-05 21:50 ` Thomas Gleixner
2013-07-05 21:58 ` Borislav Petkov
2013-07-05 22:17 ` Thomas Gleixner
2013-07-06 8:37 ` Borislav Petkov
2013-07-06 10:50 ` Peter Zijlstra
2013-07-04 11:00 ` Thomas Gleixner [this message]
2013-07-04 18:11 ` Davidlohr Bueso
2013-07-04 20:27 ` Thomas Gleixner
2013-07-05 1:12 ` Alex Shi
2013-07-05 5:58 ` Thomas Gleixner
2013-07-05 6:28 ` Alex Shi
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