hi,
xsltproc --profile is quite helpful to find out in which parts of xsl
style sheets most time ist spend. Now if one want to optimize that there
are always two ways:
1.) make the hostspots use less cpu
2.) avoid calling expensive functions
For that a callgraph is useful. WHen using oprofile to profile code I
use this script [1] to render the call graph. The script could easily
adapted to render a xslt callgraph if xsltproc could output the needed data.
Right now output of --profile is like this:
number match name mode Calls Tot
100us Avg
0 gentext.template 120292
1356556 11
1 chunk 118816
457122 3
2 * recursive-chunk-filename
In oprofile orreport --c (callgraph) output looks like this:
samples % image name app name
symbol name
-------------------------------------------------------------------------------
36 100.000 /usr/lib/libgtk-x11-2.0.so.0.1800.3
/usr/lib/libgtk-x11-2.0.so.0.1800.3 gtk_main_do_event
0 0 /usr/lib/libgtk-x11-2.0.so.0.1800.3
/usr/lib/libgtk-x11-2.0.so.0.1800.3 gtk_propagate_event
41 97.6190 /usr/lib/libgtk-x11-2.0.so.0.1800.3
/usr/lib/libgtk-x11-2.0.so.0.1800.3 gtk_widget_event_internal
1 2.3810 /usr/lib/libgdk-x11-2.0.so.0.1800.3
/usr/lib/libgtk-x11-2.0.so.0.1800.3 gdk_window_is_viewable
0 0 /usr/lib/libgtk-x11-2.0.so.0.1800.3
/usr/lib/libgtk-x11-2.0.so.0.1800.3 gtk_propagate_event [self]
-------------------------------------------------------------------------------
Would it be possible for xsltproc to output something similar? E.g.
% name
-------------------------------------------------------------------------------
100 gentext.template
78 chunk
...
-------------------------------------------------------------------------------
<next entry>
Stefan
[1] http://code.google.com/p/jrfonseca/wiki/Gprof2Dot
_______________________________________________
xslt mailing list, project page http://xmlsoft.org/XSLT/
[email protected]
http://mail.gnome.org/mailman/listinfo/xslt
