Hello everybody,
I try to obtain profile information for functions compiled within ROOT by using ACLIC. I use the ROOT version 5.18/00. Under MacOs 10.3, all is ok. But things are becoming tricky when I do the same thing on Scientific Linux 4. Here is the procedure I follow.
- I build a standalone exec with the following command:
g++ -pg -o AnalyseProfile AnalyseProfile.C -Iroot-config --incdir root-config --glibs
- I run it
AnalyseProfile
- I get the profile infos using “gprof”:
gprof AnalyseProfile > AnalyseProfile_macosx.profile (under MacOs 10.3)
gprof AnalyseProfile > AnalyseProfile_sl4.profile (under SL4)
I have joined the files used in this example. The functions in the MonTestProf.C are compiled using ACLIC and with the “-pg” option.
The result on the gprof command on MacOs 10.3 is in the AnalyseProfile_macosx.profile. All functions, including those present in MonTestProf.C are profiled. But on SL4 (AnalyseProfile_sl4.profile file), only the function calls from the main program are profiled. Could somebody explain me why I get a different behaviour and how I can get the correct profiling information under SL4?
Thanks for your help.
Cheers
–
Daniel CUSSOL
LPC Caen IN2P3/ENSICAEN/Universite de Caen
Boulevard du Marechal Juin
14050 CAEN CEDEX
e-mail : cussol@in2p3.fr
Tel : +33-(0)2-31-45-29-73
FAX : +33-(0)2-31-45-25-49
AnalyseProfile_sl4.txt (7.55 KB)
AnalyseProfile_macosx.txt (19.6 KB)
MonTestProf.C (403 Bytes)
AnalyseProfile.C (415 Bytes)