Messages in this thread | | | Date | Sat, 20 Dec 2014 00:10:08 -0500 | From | Steven Rostedt <> | Subject | Re: Merge ftrace data of host and guest |
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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
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