https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95348
--- Comment #4 from Martin Liška <marxin at gcc dot gnu.org> --- (In reply to qinzhao from comment #3) > (In reply to Martin Liška from comment #2) > > Thank you for the report. It's a known limitation Honza noticed me about. > > Is the size problematic from size perspective or speed perspective? > > I think both size and speed. That would be very similar to what Honza sees for Firefox. > > for the full execution of our application, the GCC's profiling data is too > big to out of the disk space. > at the same time, since we have to merge all the profiling data for > different processes, the merging process take a long time due to so many > profiling data files. Can you please share some statistics how big are the files and how many runs do you merge? Would it be possible to share 'gcov-dump -l' for all your .gcda files? You can strip the leading filename to make the data completely anonymous. > > > Have you tried compressing the gcda files? > > > > Anyway, I'm going to work on that this stage1. > > thanks a lot. this is a high priority task for us. Sounds like good motivation for me to implement it.
