From: Michael Riepe <michael.riepe@googlemail.com>
To: Ingo Molnar <mingo@elte.hu>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
Kernel Testers List <kernel-testers@vger.kernel.org>,
Miklos Szeredi <miklos@szeredi.hu>
Subject: Re: ptrace performance
Date: Sat, 21 Mar 2009 18:02:54 +0100 [thread overview]
Message-ID: <49C51DBE.4000403@googlemail.com> (raw)
In-Reply-To: <20090321152217.GB1073@elte.hu>
Ingo Molnar wrote:
> that's almost certainly due to the wait_task_inactive() change. Does
> the patch below improve things?
That makes it *much* better - dd reports more than 3 GB/s on the Core
Duo. I'll have to check the other systems later; they're busy at the moment.
--
Michael "Tired" Riepe <michael.riepe@googlemail.com>
X-Tired: Each morning I get up I die a little
next prev parent reply other threads:[~2009-03-21 17:03 UTC|newest]
Thread overview: 46+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-03-14 19:11 2.6.29-rc8: Reported regressions 2.6.27 -> 2.6.28 Rafael J. Wysocki
2009-03-14 19:12 ` [Bug #12061] snd_hda_intel: power_save: sound cracks on powerdown Rafael J. Wysocki
2009-03-14 19:20 ` [Bug #12404] Oops in 2.6.28-rc9 and -rc8 -- mtrr issues / e1000e Rafael J. Wysocki
2009-03-14 19:20 ` [Bug #12411] 2.6.28: BUG in r8169 Rafael J. Wysocki
2009-03-14 19:20 ` [Bug #12209] oldish top core dumps (in its meminfo() function) Rafael J. Wysocki
2009-03-14 19:20 ` [Bug #12337] ~100 extra wakeups reported by powertop Rafael J. Wysocki
2009-03-14 19:20 ` [Bug #12208] uml is very slow on 2.6.28 host Rafael J. Wysocki
2009-03-21 14:44 ` ptrace performance (was: [Bug #12208] uml is very slow on 2.6.28 host) Michael Riepe
2009-03-21 15:22 ` Ingo Molnar
2009-03-21 17:02 ` Michael Riepe [this message]
2009-03-14 19:20 ` [Bug #12421] GPF on 2.6.28 and 2.6.28-rc9-git3, e1000e and e1000 issues Rafael J. Wysocki
2009-03-14 19:20 ` [Bug #12426] TMDC Joystick no longer works in kernel 2.6.28 Rafael J. Wysocki
2009-03-14 19:20 ` [Bug #12465] KVM guests stalling on 2.6.28 (bisected) Rafael J. Wysocki
2009-03-15 9:03 ` Kevin Shanahan
2009-03-15 9:18 ` Avi Kivity
2009-03-15 9:48 ` Ingo Molnar
2009-03-15 9:56 ` Avi Kivity
2009-03-15 10:03 ` Ingo Molnar
2009-03-15 10:13 ` Avi Kivity
2009-03-16 9:49 ` Avi Kivity
2009-03-16 12:46 ` Kevin Shanahan
2009-03-16 20:07 ` Frederic Weisbecker
2009-03-16 22:55 ` Kevin Shanahan
2009-03-18 0:20 ` Frederic Weisbecker
2009-03-18 1:16 ` Kevin Shanahan
2009-03-18 2:24 ` Frederic Weisbecker
2009-03-18 21:24 ` Kevin Shanahan
2009-03-21 5:00 ` Kevin Shanahan
2009-03-21 14:08 ` Frederic Weisbecker
2009-03-24 11:44 ` Frederic Weisbecker
2009-03-24 11:47 ` Frederic Weisbecker
2009-03-25 23:40 ` Kevin Shanahan
2009-03-25 23:48 ` Frederic Weisbecker
2009-03-26 20:22 ` Kevin Shanahan
2009-03-14 19:20 ` [Bug #12500] r8169: NETDEV WATCHDOG: eth0 (r8169): transmit timed out Rafael J. Wysocki
2009-03-14 19:20 ` [Bug #12619] Regression 2.6.28 and last - boot failed Rafael J. Wysocki
2009-03-14 19:20 ` [Bug #12612] hard lockup when interrupting cdda2wav Rafael J. Wysocki
2009-03-17 0:53 ` FUJITA Tomonori
2009-03-17 14:52 ` James Bottomley
2009-03-14 19:20 ` [Bug #12645] DMI low-memory-protect quirk causes resume hang on Samsung NC10 Rafael J. Wysocki
2009-03-14 19:20 ` [Bug #12634] video distortion and lockup with i830 video chip and 2.6.28.3 Rafael J. Wysocki
2009-03-14 19:20 ` [Bug #12690] DPMS (LCD powersave, poweroff) don't work Rafael J. Wysocki
2009-03-14 19:20 ` [Bug #12798] No wake up after suspend Rafael J. Wysocki
2009-03-14 19:20 ` [Bug #12835] Regression in backlight detection Rafael J. Wysocki
2009-03-14 19:20 ` [Bug #12818] iwlagn broken after suspend to RAM (iwlagn: MAC is in deep sleep!) Rafael J. Wysocki
2009-03-14 19:20 ` [Bug #12868] iproute2 and regressing "ipv6: convert tunnels to net_device_ops" Rafael J. Wysocki
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