https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88271
--- Comment #5 from Daniel Fruzynski <bugzi...@poradnik-webmastera.com> --- How to use perf? I did not have change to use it yet, I usually use time command or callgrind. I have run my app compiled with AVX2 instructions on Xeon E5-2683 v3, CentOS 7.6, on idle CPU. I run it 3 times for both versions (w/ and w/o test instructions). Here are results: With test: Average 246,3 ms, StdDev 0,198 W/o test: Average 244,013ms, StdDev 0,043 Version with test is 0,94% slower - this is result which I expected.
