Difference between revisions of "Speedprof"

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(bin the patches section / tweak bits)
(gnome is in SVN now)
Line 5: Line 5:
=== how to get it ===
=== how to get it ===
Checkout 'memprof' from GNOME [http://developer.gnome.org/tools/cvs.html CVS]:
Checkout 'memprof' from GNOME [http://developer.gnome.org/tools/svn.html SVN]:
     export CVSROOT=':pserver:anonymous@anoncvs.gnome.org:/cvs/gnome'
     svn co http://svn.gnome.org/svn/memprof/branches/sled-fixes/ memprof
    cvs login
    cvs -z3 co -r sled-fixes memprof
=== install it ===
=== install it ===

Revision as of 15:33, 17 August 2007

what is it

Speedprof is an LD_PRELOAD based itimer (or hard real-time, or builtin CPU timer) based snapshot profiler. It samples at regular intervals (tweakable by reading the code ;-) and then presents a rather sexy data mining view so you can wind back full stack information - what function called what and when, self & cumulative times down trace paths etc.

how to get it

Checkout 'memprof' from GNOME SVN:

   svn co http://svn.gnome.org/svn/memprof/branches/sled-fixes/ memprof

install it

   sudo make install

how to use it

   speedprof ./soffice.bin -writer

Of course, the most useful mode is to use the 'reset' button - ie. get OO.o going to the state you're interested in. Hit reset - do something slow - hit 'Profile' and wander the trace.


  • sometimes crashes the app - but hey, sometimes the app crashes under it's own steam too - hard to know whom to blame.
  • doesn't work well with old systems (pre TLS / NPTL)
  • doesn't like very long C++ symbols much - makes the columns somewhat unpleasant to use, needs some app tweakage.
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