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Bug 710741 - some mainloop instrumentation
some mainloop instrumentation
Status: RESOLVED FIXED
Product: glib
Classification: Platform
Component: general
unspecified
Other Linux
: Normal normal
: ---
Assigned To: gtkdev
gtkdev
Depends on:
Blocks:
 
 
Reported: 2013-10-23 17:32 UTC by Matthias Clasen
Modified: 2013-11-23 05:23 UTC
See Also:
GNOME target: ---
GNOME version: ---

Attachments
patch (2.59 KB, patch)
2013-10-23 17:32 UTC, Matthias Clasen 		none Details | Review
stap script (565 bytes, text/plain)
2013-10-23 17:32 UTC, Matthias Clasen 		  Details
tracking source addition/removal (1.03 KB, patch)
2013-10-24 12:08 UTC, Matthias Clasen 		accepted-commit_now Details | Review

Description Matthias Clasen 2013-10-23 17:32:03 UTC 
Created attachment 257942 [details] [review]
patch

Here is a patch that adds dtrace/systemtap markers around the dispatching of sources in gmain.c.

Together with a script like the attached one, it produces output like this:

                        Source Total (us)      Count   Avg (us)
                       unnamed       2972         58         51
     GDK X11 Event source (:0)         84          1         84

which gets updated once every second. Adding names to more sources will make this much more useful.
Comment 1 Matthias Clasen 2013-10-23 17:32:25 UTC 
Created attachment 257943 [details]
stap script
Comment 2 Matthias Clasen 2013-10-24 12:08:35 UTC 
Created attachment 258009 [details] [review]
tracking source addition/removal
Comment 3 Colin Walters 2013-10-24 12:19:35 UTC 
Review of attachment 258009 [details] [review]:

Makes sense to me!