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List:       fedora-devel-list
Subject:    Re: F37 proposal: Add -fno-omit-frame-pointer to default compilation flags (System-Wide Change propo
From:       Dominique Martinet <asmadeus () codewreck ! org>
Date:       2022-11-01 11:38:16
Message-ID: Y2EFKHuanyQ+M6DH () codewreck ! org
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Daan De Meyer via devel wrote on Tue, Nov 01, 2022 at 11:26:13AM -0000:
> I've added a new section to the proposal with the benchmark results of
> some benchmarks we performed against a Fedora 37 system built with
> frame pointers and a regular Fedora 37 system. The impact on most
> benchmarks seems limited aside from the CPython benchmark suite
> (pyperformance). See the proposal itself for the detail.

For others who rotate their mailbox out regularly and no longer have the
start of this thread, here's a link to the change:
https://fedoraproject.org/wiki/Changes/fno-omit-frame-pointer

and quoting the relevant section summary:

* Compiling the kernel with GCC is 2.4% slower with frame pointers
* Running Blender to render a frame is 2% slower on our specific
testcase
* openssl/botan/zstd do not seem to be affected significantly when built
with frame pointers 
* The impact on CPython benchmarks can be anywhere from 1-10% depending
on the specific benchmark
* Redis benchmarks do not seem to be significantly impacted when built
with frame pointers 

with details in https://github.com/DaanDeMeyer/fpbench

-- 
Dominique Martinet | Asmadeus
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