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Message-Id: <202512081300.5B8D0PGO064483@critter.freebsd.dk>
To: Mateusz Guzik <mjguzik@gmail.com>
cc: Mark Millard <marklmi@yahoo.com>, Warner Losh <imp@bsdimp.com>,
        FreeBSD Current <freebsd-current@freebsd.org>,
        FreeBSD-STABLE Mailing List <freebsd-stable@freebsd.org>,
        Konstantin Belousov <kib@freebsd.org>
Subject: Re: performance regressions in 15.0 [The Microsoft Dev Kit 2023 buildworld took about 6 minutes less time for jemalloc 5.3.0, not more, for non-debug contexts]
In-reply-to: <CAGudoHGQUc6QT9ApyQxh4WE2Q9ZBh4-SxAhCcCYE9k_UobovhQ@mail.gmail.com>
From: "Poul-Henning Kamp" <phk@phk.freebsd.dk>
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--------
Mateusz Guzik writes:

> First, you can't just run it once -- the result needs to be proven
> repeatable and profiled. […]

<Cough> https://wiki.freebsd.org/BenchmarkAdvice </Cough>


-- 
Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
phk@FreeBSD.ORG         | TCP/IP since RFC 956
FreeBSD committer       | BSD since 4.3-tahoe    
Never attribute to malice what can adequately be explained by incompetence.