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From: "marxin at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug gcov-profile/95348] GCC records zero functions and modules in
 the profiling data file, ICC does NOT
Date: Sat, 30 May 2020 07:23:49 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D95348

--- Comment #16 from Martin Li=C5=A1ka <marxin at gcc dot gnu.org> ---
> For our application, all processes generating profiling feedback data to a
> single directory seems is not a choice.=20

Why is it problem? You need to provide reasoning for that.

> We chose -fprofile-dir=3D%p and then use gcov-merge to merge them.

Sure, that's possible but you pay with a lot of disk space needed.
Btw. how long does it take to merge all the collected data with gcov-tool?=