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From: Dario Faggioli <dario.faggioli@citrix.com>
To: George Dunlap <dunlapg@umich.edu>
Cc: George Dunlap <George.Dunlap@eu.citrix.com>,
	"xen-devel@lists.xensource.com" <xen-devel@lists.xensource.com>,
	"Keir (Xen.org)" <keir@xen.org>,
	Ian Campbell <Ian.Campbell@citrix.com>
Subject: Re: [PATCH 4 of 5 v3] xen: tracing: introduce per-scheduler trace event IDs
Date: Sat, 9 Mar 2013 11:40:49 +0100	[thread overview]
Message-ID: <1362825649.24895.12.camel@Abyss> (raw)
In-Reply-To: <CAFLBxZboBg7mg=fn3uD6OLXF=1V+aF7amCqf33VwOTEgHbvWig@mail.gmail.com>


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On ven, 2013-03-08 at 16:08 +0000, George Dunlap wrote:
> On Mon, Dec 17, 2012 at 10:29 PM, Dario Faggioli
> > This also converts the existing credit2 tracing (the only scheduler
> > generating tracing events up to now) to the new system.
> 
> Dario, do you have xenalyze patches for this changeset somewhere?
> 
TBH, I haven't done any xenalyze modification, corresponding to this.
However, I'm not really sure it's necessary.

Well, let me put it this way, I run xenalyze on traces collected with
this change, and everything works, and the scheduler-id is shown in the
event. OF course we could improve the situation by decoding it in
xenalyze and showing it explicitly in the trace analysis. I (if this is
what you were referring to) agree it would be nice, but again, it's not
something I've done yet, and not something I can commit on doing in the
next days either. :-(

I don't think it's terrible, as the change only affect traces where the
actual event is also reported encoded, so you have to go check the
headers (or remember stuff) anyway. Again, I completely agree it would
be nice to limit the amount of stuff one has to remember, and I'm up for
it, just not immediately... Is that fine/enough?

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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  reply	other threads:[~2013-03-09 10:40 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-12-17 22:28 [PATCH 0 of 5 v3] xen: sched_credit: fix picking and tickling and add some tracing Dario Faggioli
2012-12-17 22:28 ` [PATCH 1 of 5 v3] xen: sched_credit: define and use curr_on_cpu(cpu) Dario Faggioli
2012-12-18 12:10   ` George Dunlap
2012-12-17 22:28 ` [PATCH 2 of 5 v3] xen: sched_credit: improve picking up the idle CPU for a VCPU Dario Faggioli
2012-12-18 12:12   ` George Dunlap
2012-12-17 22:29 ` [PATCH 3 of 5 v3] xen: sched_credit: improve tickling of idle CPUs Dario Faggioli
2012-12-17 22:29 ` [PATCH 4 of 5 v3] xen: tracing: introduce per-scheduler trace event IDs Dario Faggioli
2013-03-08 16:08   ` George Dunlap
2013-03-09 10:40     ` Dario Faggioli [this message]
2013-03-11 10:57       ` George Dunlap
2013-03-11 19:10         ` Dario Faggioli
2012-12-17 22:29 ` [PATCH 5 of 5 v3] xen: sched_credit: add some tracing Dario Faggioli
2012-12-18 12:15   ` George Dunlap
2012-12-18 12:16 ` [PATCH 0 of 5 v3] xen: sched_credit: fix picking and tickling and " George Dunlap
2012-12-18 14:16   ` Dario Faggioli

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