lkml.org 
[lkml]   [2014]   [Dec]   [20]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: 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



\
 
 \ /
  Last update: 2014-12-20 06:41    [W:0.059 / U:0.500 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site