https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95348
--- Comment #6 from Martin Liška <marxin at gcc dot gnu.org> --- (In reply to qinzhao from comment #5) > (In reply to Martin Liška from comment #4)> > > Can you please share some statistics how big are the files and how many > > runs do you merge? > > There were on the order of 10,000 processes. Source code coverage > approximately 20%. Size of the profiling data gathered in the vicinity of > 1TB. Which means one run takes 100MB is size, right? As you mentioned, having 1000 .gcda files, it means that one takes 0.1MB? > > > Would it be possible to share 'gcov-dump -l' for all your .gcda files? > > It is impossible since too many .gdca files, each process has one directory, > there are over 10,000 directories and under each directory, there are over > thousand .gdca files. > > the situation is similar as the small testing case I added in the first > comment. the functions and modules that do not execute have records in the > .gdca file with zero counts. Can you please provide dump of one directory? At least for portion of .gcda files? How is it common that an entire module is empty?
