Compares two cachegrind output files
cg_diff [options] cachegrind-out-file1 cachegrind-out-file2
cg_diff takes two output files produced by the Valgrind tool Cachegrind, computes the difference and prints the result in the same format that Cachegrinds outputs.
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--mod-filename=<expr> [default: none]
Specifies a Perl search-and-replace expression that is applied to all filenames. Useful for removing minor differences in paths between two different versions of a program that are sitting in different directories.
--mod-funcname=<expr> [default: none]
Like --mod-filename, but for filenames. Useful for removing minor differences in randomized names of auto-generated functions generated by some compilers.