Re: Benchmark: Distros with frame pointers (Fedora, Ubuntu) are 5-10% slower

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On Fri, 2025-07-25 at 00:21 +0200, Kevin Kofler via devel wrote:
> Hi,
> 
> look at those benchmark results:
> https://www.phoronix.com/review/framework-12-linux-os/7
> 
> As you can see, Fedora and Ubuntu, which both decided to enable frame
> pointers distrowide, are at the absolute bottom of this benchmark. The 
> competition performs at least 5% better, up to 10% better for the
> fastest 
> distributions. And it is (mainly) not CPU-specific instruction sets
> that 
> matter, because stock Arch (without CPU-specific instruction sets) is
> almost 
> as good as Cachy OS (with CPU-specific instruction sets). The huge
> divide is 
> between -fomit-frame-pointer (fast) and -fno-omit-frame-pointer (slow).
> 
These are not apples-to-apples comparisons though. IIRC Fedora has
always not been the top performer in Phoronix benchmarks anyway, so we
can't really attribute that to just frame pointers.

For frame pointers, this might be a better comparison -- RHEL 10 vs
Rocky 10 vs Alma 10. The former two don't have frame pointers enabled,
the latter does. As you can see the performance is within margins of
error - Alma is not consistently the slowest and sometimes is the
fastest.

https://www.phoronix.com/review/almalinux-10-rocky-linux-10/2

Best regards,

-- 
 _o) Michel Lind
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