Re: [Libreoffice] master eat CPU even when it does nothing

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OK thanks to moggi on libreoffice-dev irc, I installed valgrind.


Found that running in one terminal:
valgrind --trace-children=yes --tool=callgrind  ./swriter


and in another terminal, after about 2 mins of "empty swriter document
idle" doing this:

callgrind_control -b 28236  (the actual swriter PID)
gives this:
PID 28236:
/home/arno/sys/libreoffice-git/core/solver/unxlngx6.pro/installation/opt/program/soffice.bin
- --writer --splash-pipe=6 [requesting 'Status'...]

  Frame: Backtrace for Thread 1
   [ 0]  _int_free (967869 x)
   [ 1]  free_check (983990 x)
   [ 2]  free (449741 x)
   [ 3]  operator delete(void*) (322182 x)
   [ 4]  GtkHookedYieldMutex::ThreadsEnter() (322183 x)
   [ 5]  GdkThreadsEnter (161078 x)
   [ 6]  0x0000000000059cf0 (161078 x)
   [ 7]  g_main_context_prepare (161147 x)
   [ 8]  0x0000000000042ed0 (161130 x)
   [ 9]  g_main_context_iteration (161010 x)
   [10]  GtkData::Yield(bool, bool) (161010 x)
   [11]  GtkInstance::Yield(bool, bool) (161010 x)
   [12]  Application::Yield(bool) (161009 x)


and a lot more, to be read at http://pastebin.com/YuEvQC4y

I don't have a clue about how to interpret this. But if these are
function calls, maybe about a million calls are much?

Compared to GIMP running idle for 5 minutes, and it had just about
5500 calls to different things...

Hope this tells someone something.

best
Arno
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