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From: Dario Faggioli <dario.faggioli@citrix.com>
To: Joshua Whitehead <josh.whitehead@dornerworks.com>
Cc: Lars Kurth <lars.kurth@citrix.com>,
	Ian Campbell <ian.campbell@citrix.com>,
	xisisu@gmail.com,
	Stefano Stabellini <stefano.stabellini@eu.citrix.com>,
	George Dunlap <george.dunlap@eu.citrix.com>,
	Ian Jackson <ian.jackson@eu.citrix.com>,
	Robert VanVossen <robert.vanvossen@dornerworks.com>,
	Xen-devel <xen-devel@lists.xen.org>,
	Nate Studer <nate.studer@gmail.com>,
	xumengpanda@gmail.com, Meng Xu <mengxu@cis.upenn.edu>,
	Jan Beulich <JBeulich@suse.com>,
	lichong659@gmail.com
Subject: Re: [RFC PATCH 3/4] Updated comments/variables to reflect cbs, fixed formatting and confusing comments/variables
Date: Sat, 28 Jun 2014 04:13:15 +0200	[thread overview]
Message-ID: <1403921595.8515.123.camel@Solace> (raw)
In-Reply-To: <53AC8FAA.9010407@dornerworks.com>


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On gio, 2014-06-26 at 17:24 -0400, Joshua Whitehead wrote:
> On 6/17/2014 1:28 PM, Dario Faggioli wrote:

> > The merge can happen 'either way', i.e., we can try to borrow the global
> > scheduling bits (i.e., the SMP support) from RT-Xen's sched_rtglobal.c
> > into sched_sedf.c or, vice-versa, import Josh's SEDF/CBS code inside
> > sched_rtglobal.c... In either case, I'd need Josh and Meng, and their
> > respective fellows, to collaborate... Are you guys up for that? :-)
> > 
> Reading over this again in combination with some of the other discussion that
> has gone on (and having seen the e-mails from Meng/RT-Xen, thanks for that!) we
> think this is probably a good solution.
> 
> To this end I think our next version of the patch series will focus on the
> reorganization of the patch order as discussed with the separation between the
> various areas.  We will keep our cuts to SEDF and our implementation details on
> CBS, but we'll keep the the renaming/parameter changes very limited to only
> what's necessary to properly reflect the state of the scheduler. (Similar to
> what George proposed in his last e-mail, i.e. changing the scheduler and
> interface in place rather than introducing a new scheduler entirely)
> 
Yes, that, I think, would help. As said, the series is very hard to
review like this. Having it in a better split and more 'focused' (i.e.,
less massive killing/renaming) would help (me) a lot!

> At a minimum this would put the series in a good state so that, if it were
> upstreamed, RT-Xen and/or DornerWorks could easily patch against the scheduler
> to add the additional features discussed.  These patches could then come
> directly from RT-Xen, DornerWorks, or some other hybrid of RT-Xen and
> DornerWorks code, all while occurring incrementally and leaving a working
> version of the scheduler in the tree at all times.
> 
Right... That's the spirit!! :-D :-D

> Everyone let us know what you think, we'll get to work on our V2 to get that out
> soon to give everyone a better idea of where that puts us.  Thanks,
> 
Really, it would be super-cool. And thanks to you. :-)

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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  reply	other threads:[~2014-06-28  2:13 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-06-13 19:58 [RFC PATCH 0/4] Repurpose SEDF Scheduler for Real-time use Josh Whitehead
2014-06-13 19:58 ` [RFC PATCH 1/4] Implement cbs algorithm, remove extra queues, latency scaling, and weight support from sedf Josh Whitehead
2014-06-17 15:43   ` Dario Faggioli
2014-06-26 20:17     ` Joshua Whitehead
2014-06-28  2:19       ` Dario Faggioli
2014-06-17 16:06   ` Dario Faggioli
2014-06-26 20:18     ` Joshua Whitehead
2014-06-28  2:27       ` Dario Faggioli
2014-06-13 19:58 ` [RFC PATCH 2/4] Add cbs parameter support to xl tool stack, remove defunct sedf parameters Josh Whitehead
2014-06-17 15:02   ` Dario Faggioli
2014-06-26 19:55     ` Joshua Whitehead
2014-06-13 19:58 ` [RFC PATCH 3/4] Updated comments/variables to reflect cbs, fixed formatting and confusing comments/variables Josh Whitehead
2014-06-16  9:33   ` Jan Beulich
2014-06-16 15:29     ` George Dunlap
2014-06-17 16:11       ` Dario Faggioli
2014-06-17 17:28         ` Dario Faggioli
2014-06-25 20:13           ` Meng Xu
2014-06-26 21:24           ` Joshua Whitehead
2014-06-28  2:13             ` Dario Faggioli [this message]
2014-06-18 11:18         ` George Dunlap
2014-06-26 21:30           ` Joshua Whitehead
2014-06-26 21:23         ` Joshua Whitehead
2014-06-28  2:09           ` Dario Faggioli
2014-06-13 19:58 ` [RFC PATCH 4/4] Changed filenames with sedf to cbs to reflect the actual scheduler Josh Whitehead
2014-06-16  7:25 ` [RFC PATCH 0/4] Repurpose SEDF Scheduler for Real-time use Dario Faggioli
2014-06-17 14:44 ` Dario Faggioli
2014-06-26 19:53   ` Joshua Whitehead

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