From: Nikos Chantziaras <realnc@arcor.de>
To: Ingo Molnar <mingo@elte.hu>
Cc: Pekka Pietikainen <pp@ee.oulu.fi>, Michael Buesch <mb@bu3sch.de>,
Con Kolivas <kernel@kolivas.org>,
linux-kernel@vger.kernel.org,
Peter Zijlstra <a.p.zijlstra@chello.nl>,
Mike Galbraith <efault@gmx.de>, Felix Fietkau <nbd@openwrt.org>
Subject: Re: BFS vs. mainline scheduler benchmarks and measurements
Date: Tue, 08 Sep 2009 11:13:51 +0300 [thread overview]
Message-ID: <4AA6123F.7020704@arcor.de> (raw)
In-Reply-To: <20090908080427.GA7070@elte.hu>
On 09/08/2009 11:04 AM, Ingo Molnar wrote:
>
> * Pekka Pietikainen<pp@ee.oulu.fi> wrote:
>
>> On Mon, Sep 07, 2009 at 10:57:01PM +0200, Ingo Molnar wrote:
>>>>> Could you profile it please? Also, what's the context-switch rate?
>>>>
>>>> As far as I can tell, the broadcom mips architecture does not have
>>>> profiling support. It does only have some proprietary profiling
>>>> registers that nobody wrote kernel support for, yet.
>>> Well, what does 'vmstat 1' show - how many context switches are
>>> there per second on the iperf server? In theory if it's a truly
>>> saturated box, there shouldnt be many - just a single iperf task
>>
>> Yay, finally something that's measurable in this thread \o/
>
> My initial posting in this thread contains 6 separate types of
> measurements, rather extensive ones. Out of those, 4 measurements
> were latency oriented, two were throughput oriented. Plenty of data,
> plenty of results, and very good reproducability.
None of which involve latency-prone GUI applications running on cheap
commodity hardware though. I listed examples where mainline seems to
behave sub-optimal and ways to reproduce them but this doesn't seem to
be an area of interest.
next prev parent reply other threads:[~2009-09-08 8:13 UTC|newest]
Thread overview: 224+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-09-06 20:59 BFS vs. mainline scheduler benchmarks and measurements Ingo Molnar
2009-09-07 2:05 ` Frans Pop
2009-09-07 12:16 ` [quad core results] " Ingo Molnar
2009-09-07 12:36 ` Stefan Richter
2009-09-07 13:41 ` Markus Tornqvist
2009-09-07 13:59 ` Ingo Molnar
2009-09-09 5:54 ` Markus Tornqvist
2009-09-07 14:45 ` Arjan van de Ven
2009-09-07 15:20 ` Frans Pop
2009-09-07 15:36 ` Arjan van de Ven
2009-09-07 15:47 ` Frans Pop
2009-09-07 15:24 ` Xavier Bestel
2009-09-07 15:37 ` Arjan van de Ven
2009-09-07 16:00 ` Diego Calleja
2009-09-07 15:34 ` Nikos Chantziaras
2009-09-07 3:38 ` Nikos Chantziaras
2009-09-07 11:01 ` Frederic Weisbecker
2009-09-08 18:15 ` Nikos Chantziaras
2009-09-10 20:25 ` Frederic Weisbecker
2009-09-07 14:40 ` Arjan van de Ven
2009-09-08 7:19 ` Nikos Chantziaras
2009-09-08 8:31 ` Arjan van de Ven
2009-09-08 20:22 ` Frans Pop
2009-09-08 21:10 ` Michal Schmidt
2009-09-08 21:11 ` Frans Pop
2009-09-08 21:40 ` GeunSik Lim
2009-09-08 22:36 ` Frans Pop
2009-09-09 9:53 ` Benjamin Herrenschmidt
2009-09-09 11:14 ` David Newall
2009-09-09 11:32 ` Benjamin Herrenschmidt
2009-09-09 11:55 ` Frans Pop
2009-09-11 1:36 ` Benjamin Herrenschmidt
2009-09-16 18:27 ` Frans Pop
2009-09-17 1:29 ` Benjamin Herrenschmidt
2009-10-01 9:36 ` Frans Pop
2009-09-08 8:38 ` Arjan van de Ven
2009-09-08 10:13 ` Nikos Chantziaras
2009-09-08 11:32 ` Juergen Beisert
2009-09-08 22:00 ` Nikos Chantziaras
2009-09-08 23:20 ` Jiri Kosina
2009-09-08 23:38 ` Nikos Chantziaras
2009-09-08 12:03 ` Theodore Tso
2009-09-08 21:28 ` Nikos Chantziaras
2009-09-08 14:20 ` Arjan van de Ven
2009-09-08 22:53 ` Nikos Chantziaras
2009-09-07 23:54 ` Thomas Fjellstrom
2009-09-08 11:30 ` Nikos Chantziaras
2009-09-07 3:50 ` Con Kolivas
2009-09-07 18:20 ` Jerome Glisse
2009-09-07 9:49 ` Jens Axboe
2009-09-07 10:12 ` Nikos Chantziaras
2009-09-07 10:41 ` Jens Axboe
2009-09-07 11:57 ` Jens Axboe
2009-09-07 14:14 ` Ingo Molnar
2009-09-07 17:38 ` Jens Axboe
2009-09-07 20:44 ` Jens Axboe
2009-09-08 9:13 ` Jens Axboe
2009-09-08 15:23 ` Peter Zijlstra
2009-09-08 20:34 ` Jens Axboe
2009-09-09 6:13 ` Ingo Molnar
2009-09-09 8:34 ` Nikos Chantziaras
2009-09-09 8:52 ` Mike Galbraith
2009-09-09 9:02 ` Peter Zijlstra
2009-09-09 9:18 ` Mike Galbraith
2009-09-09 9:05 ` Nikos Chantziaras
2009-09-09 9:17 ` Peter Zijlstra
2009-09-09 9:40 ` Nikos Chantziaras
2009-09-09 10:17 ` Nikos Chantziaras
2009-09-10 19:45 ` Martin Steigerwald
2009-09-10 20:06 ` Ingo Molnar
2009-09-10 20:39 ` Martin Steigerwald
2009-09-10 20:42 ` Ingo Molnar
2009-09-10 21:19 ` Martin Steigerwald
2009-09-11 9:26 ` Mat
2009-09-12 11:26 ` Martin Steigerwald
2009-09-09 9:10 ` Jens Axboe
2009-09-09 11:54 ` Jens Axboe
2009-09-09 12:20 ` Jens Axboe
2009-09-09 18:04 ` Ingo Molnar
2009-09-09 20:12 ` Nikos Chantziaras
2009-09-09 20:50 ` Jens Axboe
2009-09-10 1:02 ` Con Kolivas
2009-09-10 11:03 ` Jens Axboe
2009-09-10 3:15 ` Mike Galbraith
2009-09-10 6:08 ` Ingo Molnar
2009-09-10 6:40 ` Ingo Molnar
2009-09-10 9:54 ` Jens Axboe
2009-09-10 10:03 ` Ingo Molnar
2009-09-10 10:11 ` Jens Axboe
2009-09-10 10:28 ` Jens Axboe
2009-09-10 10:57 ` Mike Galbraith
2009-09-10 11:09 ` Jens Axboe
2009-09-10 11:21 ` Mike Galbraith
2009-09-10 11:24 ` Jens Axboe
2009-09-10 11:28 ` Mike Galbraith
2009-09-10 11:35 ` Jens Axboe
2009-09-10 11:42 ` Mike Galbraith
2009-09-10 16:02 ` Bret Towe
2009-09-10 16:05 ` Peter Zijlstra
2009-09-10 16:12 ` Bret Towe
2009-09-10 16:26 ` Ingo Molnar
2009-09-10 16:33 ` Bret Towe
2009-09-10 17:03 ` Ingo Molnar
2009-09-10 17:53 ` Nikos Chantziaras
2009-09-10 18:46 ` Ingo Molnar
2009-09-10 18:51 ` [tip:sched/core] sched: Disable NEW_FAIR_SLEEPERS for now tip-bot for Ingo Molnar
2009-09-10 18:57 ` [tip:sched/core] sched: Fix sched::sched_stat_wait tracepoint field tip-bot for Ingo Molnar
2009-09-10 9:48 ` BFS vs. mainline scheduler benchmarks and measurements Jens Axboe
2009-09-10 9:59 ` Ingo Molnar
2009-09-10 10:01 ` Jens Axboe
2009-09-10 6:55 ` Peter Zijlstra
2009-09-10 6:58 ` Jens Axboe
2009-09-10 7:04 ` Ingo Molnar
2009-09-10 9:44 ` Jens Axboe
2009-09-10 9:45 ` Jens Axboe
2009-09-10 13:53 ` Steven Rostedt
2009-09-10 7:33 ` Jens Axboe
2009-09-10 7:49 ` Ingo Molnar
2009-09-10 7:53 ` Jens Axboe
2009-09-10 10:02 ` Ingo Molnar
2009-09-10 10:09 ` Jens Axboe
2009-09-10 18:00 ` [crash, bisected] Re: clocksource: Resolve cpu hotplug dead lock with TSC unstable Ingo Molnar
2009-09-11 7:37 ` Ingo Molnar
2009-09-11 7:48 ` Martin Schwidefsky
2009-09-11 13:33 ` Martin Schwidefsky
2009-09-11 18:22 ` [tip:timers/core] clocksource: Resolve cpu hotplug dead lock with TSC unstable, fix crash tip-bot for Martin Schwidefsky
2009-09-14 15:19 ` [crash, bisected] Re: clocksource: Resolve cpu hotplug dead lock with TSC unstable Ingo Molnar
2009-09-14 15:37 ` Martin Schwidefsky
2009-09-14 17:59 ` Martin Schwidefsky
2009-09-10 6:59 ` BFS vs. mainline scheduler benchmarks and measurements Ingo Molnar
2009-09-09 12:48 ` Mike Galbraith
2009-09-09 15:37 ` [tip:sched/core] sched: Turn off child_runs_first tip-bot for Mike Galbraith
2009-09-09 17:57 ` Theodore Tso
2009-09-09 18:08 ` Ingo Molnar
2009-09-09 18:59 ` Chris Friesen
2009-09-09 19:48 ` Pavel Machek
2009-09-09 15:37 ` [tip:sched/core] sched: Re-tune the scheduler latency defaults to decrease worst-case latencies tip-bot for Mike Galbraith
2009-09-12 11:45 ` Martin Steigerwald
2009-09-09 15:37 ` [tip:sched/core] sched: Keep kthreads at default priority tip-bot for Mike Galbraith
2009-09-09 16:55 ` Dmitry Torokhov
2009-09-09 17:06 ` Peter Zijlstra
2009-09-09 17:34 ` Mike Galbraith
2009-09-12 11:48 ` Martin Steigerwald
2009-09-12 12:19 ` Mike Galbraith
2009-09-09 11:52 ` BFS vs. mainline scheduler benchmarks and measurements Nikos Chantziaras
2009-09-07 18:02 ` Avi Kivity
2009-09-07 18:46 ` Jens Axboe
2009-09-07 20:36 ` Ingo Molnar
2009-09-07 20:46 ` Jens Axboe
2009-09-07 21:03 ` Peter Zijlstra
2009-09-07 21:05 ` Jens Axboe
2009-09-07 22:18 ` Ingo Molnar
2009-09-09 7:38 ` Pavel Machek
2009-09-10 12:19 ` latt location (Was Re: BFS vs. mainline scheduler benchmarks and measurements) Jens Axboe
2009-09-07 15:16 ` BFS vs. mainline scheduler benchmarks and measurements Michael Buesch
2009-09-07 18:26 ` Ingo Molnar
2009-09-07 18:47 ` Daniel Walker
2009-09-07 18:51 ` Michael Buesch
2009-09-07 20:57 ` Ingo Molnar
2009-09-07 23:24 ` Pekka Pietikainen
2009-09-08 8:04 ` Ingo Molnar
2009-09-08 8:13 ` Nikos Chantziaras [this message]
2009-09-08 10:12 ` Ingo Molnar
2009-09-08 10:40 ` Nikos Chantziaras
2009-09-08 11:35 ` Ingo Molnar
2009-09-08 19:06 ` Nikos Chantziaras
2009-09-08 12:00 ` el_es
2009-09-08 15:45 ` Michael Buesch
2009-09-08 7:48 ` Ingo Molnar
2009-09-08 9:50 ` Benjamin Herrenschmidt
2009-09-08 13:09 ` Ralf Baechle
2009-09-09 1:36 ` Felix Fietkau
2009-09-08 13:09 ` Felix Fietkau
2009-09-09 0:28 ` Benjamin Herrenschmidt
2009-09-09 0:37 ` David Miller
2009-09-08 14:45 ` Michael Buesch
2009-09-18 11:24 ` Ingo Molnar
2009-09-18 14:46 ` Felix Fietkau
2009-09-19 18:01 ` Ingo Molnar
2009-09-19 18:43 ` Felix Fietkau
2009-09-19 19:39 ` Ingo Molnar
2009-09-19 20:15 ` Felix Fietkau
2009-09-19 20:22 ` Ingo Molnar
2009-09-19 20:33 ` Felix Fietkau
2009-09-20 18:10 ` Ingo Molnar
2009-09-08 12:57 ` Epic regression in throughput since v2.6.23 Serge Belyshev
2009-09-08 17:47 ` Jesse Brandeburg
2009-09-08 18:20 ` Nikos Chantziaras
2009-09-08 19:00 ` Jeff Garzik
2009-09-08 19:20 ` Serge Belyshev
2009-09-08 19:26 ` Jeff Garzik
2009-09-08 18:37 ` Nikos Chantziaras
2009-09-08 22:15 ` Serge Belyshev
2009-09-09 15:52 ` Ingo Molnar
2009-09-09 20:49 ` Serge Belyshev
2009-09-09 21:23 ` Cory Fields
2009-09-10 6:53 ` Ingo Molnar
2009-09-10 23:23 ` Serge Belyshev
2009-09-11 6:10 ` Ingo Molnar
2009-09-11 8:55 ` Serge Belyshev
2009-09-13 15:27 ` Serge Belyshev
2009-09-13 15:47 ` Ingo Molnar
2009-09-13 19:17 ` Mike Galbraith
2009-09-14 6:15 ` Mike Galbraith
2009-09-16 19:45 ` Ingo Molnar
2009-09-16 23:18 ` Serge Belyshev
2009-09-17 4:55 ` [patchlet] " Mike Galbraith
2009-09-17 5:06 ` Mike Galbraith
2009-09-17 7:21 ` Ingo Molnar
2009-09-10 7:43 ` [updated] BFS vs. mainline scheduler benchmarks and measurements Ingo Molnar
2009-09-14 9:46 ` Phoronix CFS vs BFS bencharks Nikos Chantziaras
2009-09-14 11:35 ` Mike Galbraith
[not found] ` <f42384a10909140727k463ff460q3859892dcb79bcc5@mail.gmail.com>
2009-09-14 15:32 ` Mike Galbraith
2009-09-14 19:14 ` Marcin Letyns
2009-09-14 20:49 ` Willy Tarreau
2009-09-15 8:37 ` Mike Galbraith
2009-09-10 21:17 BFS vs. mainline scheduler benchmarks and measurements Martin Steigerwald
2009-09-11 10:10 Mat
2009-09-11 18:33 Volker Armin Hemmann
2009-09-12 7:37 ` Nikos Chantziaras
2009-09-12 7:51 ` Arjan van de Ven
2009-09-12 8:27 ` Volker Armin Hemmann
2009-09-12 9:03 ` Nikos Chantziaras
2009-09-12 9:34 ` Volker Armin Hemmann
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