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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: Wed, 10 Jun 2020 19:43:02 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D95348

--- Comment #30 from Martin Li=C5=A1ka <marxin at gcc dot gnu.org> ---
(In reply to Qing Zhao from comment #29)
> >=20
> > And you still haven't replied to my essential question: Why can't you m=
erge
> > profiles into one directory during run? Or at least merge to a reasonab=
le
> > number of folders that you'll merge later?
> Comment #18 has my answer to the above question.

The explanation is not sufficient.
You mentioned that merging takes 24 hours, so I would expect that directing
merging will same you quite some time.
Feel free to provide some 'perf report' and I can make some suggestions bas=
ed
on that.

I'm still missing information like:
- how long does it take the training run?
- how many parallel runs do you have?
- what's the average duration of a process?=