Add gprof profiling support. #7547
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DomClark
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Oct 17, 2024
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Rossmaxx
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Adds gprof support for profiling the builds. Also removed the
-fomit-frame-pointerflag from swh and tap suite as the flag interferes with the-pgflag used here.per https://stackoverflow.com/questions/14666665/trying-to-understand-gcc-option-fomit-frame-pointer , this option makes getting stack traces nearly impossible, and the performance improvements seems to be negligible on 64 bit systems, especially when debugging.
to use gprof:
after building with the
WANT_DEBUG_GPROFflag turned on, run lmms, and after running,gprof ./lmms gmon.out > report.txtfrom the build directory. This will generate a text file with the profiling data. Do note that this method is tested only on GCC, and windows builds might not be supported.