Any post performance analyzer tool suitable for LKET ?

[Li Guanglei <guanglei at cn dot ibm dot com>]

Hi folks,

  LKET is actually an extension to SystemTap's tapsets library.
It defines a set of event hooks that probe pre-defined places inside
the Linux Kernel and will dump the traced data into disk.

  Although LKET has a simple post-processing tool named lket-b2a which
will convert the traced data from binary format into ascii format, I
don't think it will be of much use for data analysis. My testing shows
that LKET will generate several GB trace data for some combinations of
event hooks and benchmarks. So without a good post-processing tool,
it's hard to dig out useful information from such a large volume trace
data.

  I know Vara's team is doing SystemTap GUI, but it seems to me its
main focus is to be a front-end of SystemTap while not a post
performance analyzer.

  So is there anyone/team working or planning to work on a
visualization post-processing tool, i.e a performance analyzer that
will be possible to support performance analysis of LKET's trace data?

  I think by having a good performance analyzer tool, more people will
find LKET/SystemTap more attractive and are willing to use
LKET/SystemTap, then we can get more feedbacks and make it better.

  For more details of LKET, you can refer to:
http://sourceware.org/systemtap/man5/lket.5.html
  Note that the event hooks and data format is not the final version.

  Thanks for your attention.

- Guanglei