From: Tadeus Prastowo <tadeus.prastowo@rwth-aachen.de>
To: Luca Abeni <luca.abeni@unitn.it>
Cc: Juri Lelli <juri.lelli@gmail.com>,
peterz@infradead.org, tglx@linutronix.de, mingo@redhat.com,
rostedt@goodmis.org, cfriesen@nortel.com, oleg@redhat.com,
fweisbec@gmail.com, darren@dvhart.com, johan.eker@ericsson.com,
p.faure@akatech.ch, linux-kernel@vger.kernel.org,
claudio@evidence.eu.com, michael@amarulasolutions.com,
fchecconi@gmail.com, tommaso.cucinotta@sssup.it,
nicola.manica@disi.unitn.it, dhaval.giani@gmail.com,
hgu1972@gmail.com, paulmck@linux.vnet.ibm.com, raistlin@linux.it,
insop.song@ericsson.com, liming.wang@windriver.com
Subject: Re: [RFC][PATCH 00/16] sched: SCHED_DEADLINE v4
Date: Sat, 07 Apr 2012 16:25:31 +0700 [thread overview]
Message-ID: <1333790731.2292.474.camel@0x657573> (raw)
In-Reply-To: <1333700751.6646.9.camel@localhost>
Hi everyone!
On Fri, 2012-04-06 at 10:25 +0200, Luca Abeni wrote:
[...]
> About BWI... A student of mine (added in cc) implemented a prototypal
> bandwidth inheritance (based on an old version of SCHED_DEADLINE). It is
> here:
> https://github.com/eus/cbs_inheritance
> (Tadeus, please correct me if I pointed to the wrong repository).
The repository is correct.
> It is not for inclusion yet (it is based on an old version, it is UP
> only, and it probably needs some cleanups), but it worked fine in our
> tests. Note that in this patch the BWI mechanism is not bound to
> rtmutexes, but inheritance is controlled through 2 syscalls (because we
> used BWI for client/server interactions).
> Anyway, I hope that the BWI code developed by Tadeus can be useful (or
> can be directly re-used) for implementing BWI in SCHED_DEADLINE.
For inclusion, I think the interaction between the two system calls and
RT-mutex subsystem needs some thoughts especially when multi-cores are
involved. I haven't given further thought on this matter upon the
completion of my thesis work, especially in taking into account Dario's
M-BWI approach.
For UP, the BWI syscalls implementation in the aforementioned branch
does not have Dario's BWI implementation for mutexes. And interaction
between the BWI syscalls and RT-Mutex has not been taken into account.
Happy Easter to all of you who celebrate it!
> Luca
--
Sincerely yours,
Tadeus Prastowo
next prev parent reply other threads:[~2012-04-07 9:55 UTC|newest]
Thread overview: 128+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-04-06 7:14 [RFC][PATCH 00/16] sched: SCHED_DEADLINE v4 Juri Lelli
2012-04-06 7:14 ` [PATCH 01/16] sched: add sched_class->task_dead Juri Lelli
2012-04-08 17:49 ` Oleg Nesterov
2012-04-08 18:09 ` Juri Lelli
2012-04-06 7:14 ` [PATCH 02/16] sched: add extended scheduling interface Juri Lelli
2012-04-06 7:14 ` [PATCH 03/16] sched: SCHED_DEADLINE data structures Juri Lelli
2012-04-23 9:08 ` Peter Zijlstra
2012-04-23 9:47 ` Juri Lelli
2012-04-23 9:49 ` Peter Zijlstra
2012-04-23 9:55 ` Juri Lelli
2012-04-23 10:12 ` Peter Zijlstra
2012-04-23 9:13 ` Peter Zijlstra
2012-04-23 9:28 ` Juri Lelli
2012-04-23 9:30 ` Peter Zijlstra
2012-04-23 9:36 ` Juri Lelli
2012-04-23 9:39 ` Peter Zijlstra
2012-04-23 9:34 ` Peter Zijlstra
2012-04-23 10:16 ` Juri Lelli
2012-04-23 10:28 ` Peter Zijlstra
2012-04-23 10:33 ` Juri Lelli
2012-04-06 7:14 ` [PATCH 04/16] sched: SCHED_DEADLINE SMP-related " Juri Lelli
2012-04-06 7:14 ` [PATCH 05/16] sched: SCHED_DEADLINE policy implementation Juri Lelli
2012-04-11 3:06 ` Steven Rostedt
2012-04-11 6:54 ` Juri Lelli
2012-04-11 13:41 ` Steven Rostedt
2012-04-11 13:55 ` Juri Lelli
2012-04-23 10:15 ` Peter Zijlstra
2012-04-23 10:18 ` Juri Lelli
2012-04-23 10:31 ` Peter Zijlstra
2012-04-23 10:37 ` Juri Lelli
2012-04-23 21:25 ` Tommaso Cucinotta
2012-04-23 21:45 ` Peter Zijlstra
2012-04-23 23:25 ` Tommaso Cucinotta
2012-04-24 6:29 ` Dario Faggioli
2012-04-24 6:52 ` Juri Lelli
2012-04-23 11:32 ` Peter Zijlstra
2012-04-23 12:13 ` Juri Lelli
2012-04-23 12:22 ` Peter Zijlstra
2012-04-23 13:37 ` Juri Lelli
2012-04-23 14:01 ` Peter Zijlstra
2012-04-23 11:34 ` Peter Zijlstra
2012-04-23 11:57 ` Juri Lelli
2012-04-23 11:55 ` Peter Zijlstra
2012-04-23 14:43 ` Juri Lelli
2012-04-23 15:11 ` Peter Zijlstra
2012-04-23 21:55 ` Tommaso Cucinotta
2012-04-23 21:58 ` Peter Zijlstra
2012-04-23 23:21 ` Tommaso Cucinotta
2012-04-24 9:50 ` Peter Zijlstra
2012-04-24 1:03 ` Steven Rostedt
2012-04-23 14:11 ` Peter Zijlstra
2012-04-23 14:25 ` Peter Zijlstra
2012-04-23 15:34 ` Juri Lelli
2012-04-23 14:35 ` Peter Zijlstra
2012-04-23 15:39 ` Juri Lelli
2012-04-23 15:43 ` Peter Zijlstra
2012-04-23 16:41 ` Juri Lelli
[not found] ` <4F95D41F.5060700@sssup.it>
2012-04-24 7:21 ` Juri Lelli
2012-04-24 9:00 ` Peter Zijlstra
2012-05-15 10:10 ` Juri Lelli
2012-04-23 15:15 ` Peter Zijlstra
2012-04-23 15:37 ` Juri Lelli
2012-04-06 7:14 ` [PATCH 06/16] sched: SCHED_DEADLINE push and pull logic Juri Lelli
2012-04-06 13:39 ` Hillf Danton
2012-04-06 17:31 ` Juri Lelli
2012-04-07 2:32 ` Hillf Danton
2012-04-07 7:46 ` Dario Faggioli
2012-04-08 20:20 ` Juri Lelli
2012-04-09 12:28 ` Hillf Danton
2012-04-10 8:11 ` Juri Lelli
2012-04-11 15:57 ` Steven Rostedt
2012-04-11 16:00 ` Steven Rostedt
2012-04-11 16:09 ` Juri Lelli
2012-04-11 14:10 ` Steven Rostedt
2012-04-12 12:28 ` Hillf Danton
2012-04-12 12:51 ` Steven Rostedt
2012-04-12 12:56 ` Hillf Danton
2012-04-12 13:35 ` Steven Rostedt
2012-04-12 13:41 ` Hillf Danton
2012-04-11 16:07 ` Steven Rostedt
2012-04-11 16:11 ` Juri Lelli
2012-04-11 16:14 ` Steven Rostedt
2012-04-19 13:44 ` Juri Lelli
2012-04-11 16:21 ` Steven Rostedt
2012-04-11 16:24 ` Juri Lelli
2012-04-11 16:33 ` Steven Rostedt
2012-04-24 13:15 ` Peter Zijlstra
2012-04-24 18:50 ` Steven Rostedt
2012-04-24 18:53 ` Peter Zijlstra
2012-04-24 19:01 ` Steven Rostedt
2012-04-11 17:25 ` Steven Rostedt
2012-04-11 17:48 ` Juri Lelli
2012-04-06 7:14 ` [PATCH 07/16] sched: SCHED_DEADLINE avg_update accounting Juri Lelli
2012-04-06 7:14 ` [PATCH 08/16] sched: add period support for -deadline tasks Juri Lelli
2012-04-11 20:32 ` Steven Rostedt
2012-04-11 21:56 ` Juri Lelli
2012-04-11 22:13 ` Tommaso Cucinotta
2012-04-12 0:19 ` Steven Rostedt
2012-04-12 6:39 ` Luca Abeni
2012-04-06 7:14 ` [PATCH 09/16] sched: add schedstats " Juri Lelli
2012-04-06 7:14 ` [PATCH 10/16] sched: add resource limits " Juri Lelli
2012-04-24 15:07 ` Peter Zijlstra
2012-04-24 15:22 ` Juri Lelli
2012-04-24 16:27 ` Peter Zijlstra
2012-04-24 17:14 ` Juri Lelli
2012-04-06 7:14 ` [PATCH 11/16] sched: add latency tracing " Juri Lelli
2012-04-11 21:03 ` Steven Rostedt
2012-04-12 7:16 ` Juri Lelli
2012-04-16 15:51 ` Daniel Vacek
2012-04-16 19:56 ` Steven Rostedt
2012-04-16 21:31 ` Daniel Vacek
2012-04-06 7:14 ` [PATCH 12/16] rtmutex: turn the plist into an rb-tree Juri Lelli
2012-04-11 21:11 ` Steven Rostedt
2012-04-22 14:28 ` Juri Lelli
2012-04-23 8:33 ` Peter Zijlstra
2012-04-23 11:37 ` Steven Rostedt
2012-04-06 7:14 ` [PATCH 13/16] sched: drafted deadline inheritance logic Juri Lelli
2012-04-12 2:42 ` Steven Rostedt
2012-04-22 14:04 ` Juri Lelli
2012-04-23 8:39 ` Peter Zijlstra
2012-04-06 7:14 ` [PATCH 14/16] sched: add bandwidth management for sched_dl Juri Lelli
2012-04-06 7:14 ` [PATCH 15/16] sched: speed up -dl pushes with a push-heap Juri Lelli
2012-04-06 7:14 ` [PATCH 16/16] sched: add sched_dl documentation Juri Lelli
2012-04-06 8:25 ` [RFC][PATCH 00/16] sched: SCHED_DEADLINE v4 Luca Abeni
2012-04-07 9:25 ` Tadeus Prastowo [this message]
2012-04-06 11:07 ` Dario Faggioli
2012-04-11 14:17 ` Steven Rostedt
2012-04-11 14:28 ` Juri Lelli
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