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Date: Sat, 20 Dec 2014 00:10:08 -0500 From: Steven Rostedt <rostedt@...dmis.org> To: Divya Vyas <edivya.vyas@...il.com> Cc: LKML <linux-kernel@...r.kernel.org>, Masami Hiramatsu <masami.hiramatsu.pt@...achi.com> Subject: Re: Merge ftrace data of host and guest On Fri, Dec 19, 2014 at 05:52:52PM +0530, Divya Vyas wrote: > Hi, Hi, it would be helpful if you Cc'd me. I would have responded quicker. Luckily, someone noticed this email and told me about it. > > I think it is not desired output . Ths script is written for diffrent > format .ftrace format is ( trace-cmd report command generates) : I'm actually working on trace-cmd this week and hopefully I'll be able to release 2.5 by x-mas. I believe that Masami is going to start continuing work on the virt guest tracer for trace-cmd. Also, for now, for a crud way of merging, if both the gettimeofday clocks of the host and guest are synced, you could do: guest> trace-cmd record -o guest.dat --date ... host> trace-cmd record -o host.dat --date ... and then run: trace-cmd report -i guest.dat -i host.dat and trace-cmd will merge the two. The --date will add a way to sync the trace timestamps to a wall clock and that will be used to try to interleave the events of both the data files. -- Steve -- 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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