#7453 NORM 8.2.0 (: sysprof kernel module is needed

Zarro Boogs per Child bugtracker at laptop.org
Wed Jul 9 12:37:38 EDT 2008

#7453: sysprof kernel module is needed
   Reporter:  tomeu      |       Owner:  dilinger            
       Type:  defect     |      Status:  new                 
   Priority:  normal     |   Milestone:  8.2.0 (was Update.2)
  Component:  kernel     |     Version:  Update.1            
 Resolution:             |    Keywords:  8.2.0:?             
Next_action:  never set  |    Verified:  0                   
  Blockedby:             |    Blocking:                      

Comment(by dsaxena):

 Replying to [ticket:7453 tomeu]:
 > We need to do performance work now, if anyone knows other good ways of
 doing system-wide profiling, please advise.

 What type of profiling data are you looking for? Both LTTng and SystemTap
 will provide data down to the kernel function level. Our 8.2 kernel
 already has the proper config options for SystemTap to be used on top of

 Sysprof looks interesting and non-intrusive from a kernel POV; however, to
 profile X, it looks like we may have to rebuild our own X. I can test
 compiling the module to see if it builds against our kernel, but given the
 way the sources are layed out, I'd prefer the module come in as part of a
 sysprof RPM package. One other issue with sysprof AFAICT is that it is
 designed to be run on the system it is profiling with the sysprof GUI
 running on it as opposed to other tools that allow data collection and
 data analysis to happen on separately.

Ticket URL: <http://dev.laptop.org/ticket/7453#comment:2>
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