From: Dario Faggioli <dario.faggioli@citrix.com>
To: Meng Xu <xumengpanda@gmail.com>
Cc: Ian Campbell <ian.campbell@citrix.com>,
Sisu Xi <xisisu@gmail.com>,
Stefano Stabellini <stefano.stabellini@eu.citrix.com>,
George Dunlap <george.dunlap@eu.citrix.com>,
Chenyang Lu <lu@cse.wustl.edu>,
Ian Jackson <ian.jackson@eu.citrix.com>,
"xen-devel@lists.xen.org" <xen-devel@lists.xen.org>,
Linh Thi Xuan Phan <ptxlinh@gmail.com>,
Meng Xu <mengxu@cis.upenn.edu>, Jan Beulich <JBeulich@suse.com>,
Chao Wang <chaowang@wustl.edu>, Chong Li <lichong659@gmail.com>,
Dagaen Golomb <dgolomb@seas.upenn.edu>
Subject: Re: [PATCH v3 3/4] libxl: add rtds scheduler
Date: Tue, 16 Sep 2014 09:27:30 +0200 [thread overview]
Message-ID: <1410852450.20720.10.camel@Abyss> (raw)
In-Reply-To: <CAENZ-+=VRPn-jiOzf9QT4omHRua26eGaReRTdz3ok9zUE=ixUA@mail.gmail.com>
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On Mon, 2014-09-15 at 23:32 -0400, Meng Xu wrote:
> 2014-09-15 21:49 GMT-04:00 Ian Campbell <ian.campbell@citrix.com>:
> Is a 0.5hr maximum period considered to be larger than any
> practically
> useful value?
>
>
> I think so.
>
Yes, it is. Most of the people using this scheduler will be interested
in "a few [decades, hundreds] millisecond" period and budget. Someone
might want to try microsecs, someone may be fine with seconds.
For anyone that is interested in anything else, this scheduler is the
wrong solution. Then, of course, they can have a go with it (never say
never! :-D), but no point in optimizing --neither the algorithm nor the
interface-- for such use cases.
Regards,
Dario
--
<<This happens because I choose it to happen!>> (Raistlin Majere)
-----------------------------------------------------------------
Dario Faggioli, Ph.D, http://about.me/dario.faggioli
Senior Software Engineer, Citrix Systems R&D Ltd., Cambridge (UK)
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next prev parent reply other threads:[~2014-09-16 7:27 UTC|newest]
Thread overview: 46+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-09-14 21:37 Introduce rtds real-time scheduler for Xen Meng Xu
2014-09-14 21:37 ` [PATCH v3 1/4] xen: add real time scheduler rtds Meng Xu
2014-09-15 10:40 ` Jan Beulich
2014-09-16 8:42 ` Dario Faggioli
2014-09-16 8:52 ` Jan Beulich
2014-09-16 8:59 ` Dario Faggioli
2014-09-16 16:38 ` Meng Xu
2014-09-17 9:22 ` Jan Beulich
2014-09-18 16:08 ` George Dunlap
2014-09-18 18:08 ` Dario Faggioli
2014-09-19 13:11 ` Meng Xu
2014-09-22 17:11 ` Dario Faggioli
2014-09-22 20:40 ` Meng Xu
2014-09-19 9:45 ` Dario Faggioli
2014-09-19 16:44 ` Konrad Rzeszutek Wilk
2014-09-22 17:26 ` Dario Faggioli
2014-09-22 20:45 ` Meng Xu
2014-09-22 22:43 ` Konrad Rzeszutek Wilk
2014-09-20 21:10 ` Meng Xu
2014-09-23 10:47 ` George Dunlap
2014-09-14 21:37 ` [PATCH v3 2/4] libxc: add rtds scheduler Meng Xu
2014-09-18 16:15 ` George Dunlap
2014-09-14 21:37 ` [PATCH v3 3/4] libxl: " Meng Xu
2014-09-15 22:07 ` Ian Campbell
2014-09-16 1:11 ` Meng Xu
2014-09-16 1:49 ` Ian Campbell
2014-09-16 3:32 ` Meng Xu
2014-09-16 7:27 ` Dario Faggioli [this message]
2014-09-16 16:54 ` Ian Campbell
2014-09-17 10:19 ` Dario Faggioli
2014-09-16 8:04 ` Dario Faggioli
2014-09-16 16:56 ` Ian Campbell
2014-09-18 16:24 ` George Dunlap
2014-09-18 17:19 ` Ian Campbell
2014-09-14 21:37 ` [PATCH v3 4/4] xl: introduce " Meng Xu
2014-09-15 22:18 ` Ian Campbell
2014-09-16 7:49 ` Dario Faggioli
2014-09-18 16:35 ` George Dunlap
2014-09-16 7:43 ` Introduce rtds real-time scheduler for Xen Dario Faggioli
2014-09-17 14:15 ` Dario Faggioli
2014-09-17 14:33 ` Meng Xu
2014-09-18 16:00 ` Meng Xu
2014-09-23 13:50 ` Ian Campbell
2014-09-24 20:59 ` Meng Xu
2014-09-24 21:14 ` Wei Liu
2014-09-25 7:39 ` Ian Campbell
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