[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] RE: [Xen-devel] Re: [PATCH] add long interrupt measurement capability
> Perhaps. However measuring cycles is important and, more > specifically, measuring MAX cycles spent across a set of > interrupts. As a result, I suspect any code that measures > this (regardless of whether the result is reported by > xentrace or debug-key) would likely encounter the > same objection from Keir. I can't imagine there'd be any objection to adding trace macros to record this. The xentrace log processing tool can then be updated to generate max or histogram values. Ian > -----Original Message----- > From: Dulloor [mailto:dulloor@xxxxxxxxx] > Sent: Thursday, May 07, 2009 6:14 PM > To: Keir Fraser > Cc: Dan Magenheimer; Xen-Devel (E-mail) > Subject: Re: [Xen-devel] Re: [PATCH] add long interrupt measurement > capability > > > Dan, Couldn't you add this to xentrace ? > > -dulloor > > > On Wed, Apr 29, 2009 at 2:03 PM, Keir Fraser > <keir.fraser@xxxxxxxxxxxxx> wrote: > > On 29/04/2009 17:50, "Dan Magenheimer" <dan.magenheimer@xxxxxxxxxx> > wrote: > > > Since I see you are still taking boot-option patches > > for 3.4, I thought I'd retry this one which optionally > > measures cycles spent in each irq. I thought > > you had just decided it was too late for 3.4... if > > you rejected it for another reason, please let me > > know. > > > I don't think it has sufficient general utility to be applied. Anyone > who > would actually have the want and wit to run this option can apply the > patch > themselves. > > -- Keir > > > > _______________________________________________ > Xen-devel mailing list > Xen-devel@xxxxxxxxxxxxxxxxxxx > http://lists.xensource.com/xen-devel > > _______________________________________________ > Xen-devel mailing list > Xen-devel@xxxxxxxxxxxxxxxxxxx > http://lists.xensource.com/xen-devel _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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