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Message-Id: <20070216104415.bca20c4b.randy.dunlap@oracle.com> Date: Fri, 16 Feb 2007 10:44:15 -0800 From: Randy Dunlap <randy.dunlap@...cle.com> To: Jeff Muizelaar <jeff@...idigm.net> Cc: "Frank Ch. Eigler" <fche@...hat.com>, linux-kernel@...r.kernel.org Subject: Re: Using sched_clock for mmio-trace On Fri, 16 Feb 2007 13:30:14 -0500 Jeff Muizelaar wrote: > On Fri, Feb 16, 2007 at 11:30:56AM -0500, Frank Ch. Eigler wrote: > > Jeff Muizelaar <jeff@...idigm.net> writes: > > > > > I've built a tool with the goal of logging mmio writes and reads by > > > device drivers. See http://nouveau.freedesktop.org/wiki/MmioTrace. > > > > FWIW, this is exactly a type of add-on trace patch that could be > > mooted by adoption of the ltt/systemtap "marker" facility. With it, > > you would not need so much code (e.g. no new user-space tools at all, > > reuse of common tracing buffer logic, permanently placed hooks) and > > would probably get more utility. > > Is there more information on this "marker" facility? e.g. what is a > marker? Are they just like tracepoints? On lkml for the past few days/months. Look for "Linux Kernel Markers" in the subject line. Mathieu, do you have a web site for LK Markers? --- ~Randy *** Remember to use Documentation/SubmitChecklist when testing your code *** - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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