Profiling (cont.)

Profiling Modes
Wanted to gather other types of data
e.g. How much memory does my program use over time?
Needed a framework for profiling modes
PROFMODES environment variable:
bash% export PROFMODES="callgraph pchist memuse"
bash% ./mozilla-instrumented
bash% ls *prof
mozilla-instrumented.callgraph.23277.prof
mozilla-instrumented.pchist.23277.prof
mozilla-instrumented.memuse.23277.prof