From: George Dunlap <george.dunlap@eu.citrix.com>
To: Jan Beulich <JBeulich@suse.com>
Cc: "xen-devel@lists.xensource.com" <xen-devel@lists.xensource.com>,
"raistlin@linux.it" <raistlin@linux.it>,
Ian Campbell <Ian.Campbell@citrix.com>, Hui Lv <hui.lv@intel.com>
Subject: Re: [PATCH] xen/sched_credit: Use delay to control scheduling frequency
Date: Fri, 6 Jan 2012 14:50:06 -0500 [thread overview]
Message-ID: <4F07506E.5050500@eu.citrix.com> (raw)
In-Reply-To: <4F0176940200007800069FE8@nat28.tlf.novell.com>
On 02/01/12 03:19, Jan Beulich wrote:
>>>> On 26.12.11 at 09:46, Hui Lv<hui.lv@intel.com> wrote:
>> Some modifications for this patch.
>> 1.Based on George's proposal, added a ratelimit_us element to csched_priv to
>> constrain prv->ratelimit_us<= 1000* prv->tslice_ms in csched_init.
> I do not see why you need a per-scheduler-instance variable for
> issuing the warning and correcting the value - one warning (during
> the first initialization) is entirely sufficient. (Otoh the already existing
> tslice_ms field is pointless currently too, as it never gets changed
> after being initialized from sched_credit_tslice_ms - George?)
Before the 4.2 release, I plan to add SYSCTL_scheduler_op calls for the
credit scheduler for both the timeslice and ratelimiting. But I don't
think it's necessary for this patch to be admitted.
-George
next prev parent reply other threads:[~2012-01-06 19:50 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-12-26 8:46 [PATCH] xen/sched_credit: Use delay to control scheduling frequency Hui Lv
2012-01-02 8:19 ` Jan Beulich
2012-01-05 4:08 ` Lv, Hui
2012-01-06 19:50 ` George Dunlap [this message]
2012-01-06 19:56 ` George Dunlap
2012-01-08 12:03 ` Lv, Hui
2012-01-09 9:49 ` George Dunlap
-- strict thread matches above, loose matches on Subject: below --
2012-01-09 10:22 Hui Lv
2012-01-10 10:05 ` George Dunlap
2012-01-24 12:01 ` George Dunlap
2012-01-24 14:17 ` Keir Fraser
2012-01-24 14:31 ` George Dunlap
2011-12-19 22:13 Hui Lv
2011-12-20 9:07 ` Ian Campbell
2011-12-20 9:44 ` Lv, Hui
2011-12-20 10:09 ` Dario Faggioli
2011-12-20 10:26 ` George Dunlap
2011-12-20 10:51 ` Dario Faggioli
2011-12-20 12:14 ` Lv, Hui
2011-12-20 10:21 ` George Dunlap
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