On 05/11/18 01:49, John Carter wrote: > For example, what optimization flags (for compiling the unit tests) have > been found helpful?
What flags are you using at the moment, for your unit tests? I have tended to use -Og -g as a reasonable tradeoff between debuggability and performance (which is its intended aim anyway). With gcc this works quite well. I've had more mixed performance results with clang using -g -Og. Probably the most important thing is to avoid building your test cases with -O0 (that is, no optimisation at all). That causes gcc, at least, to produce very poor code, involving many unnecessary memory references, which makes Memcheck run very slowly. Even -Og, which is the least level of optimisation one can ask for above "none", drastically reduces memory traffic and thereby makes Memcheck run significantly faster. J _______________________________________________ Valgrind-users mailing list Valgrind-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/valgrind-users
