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]

From: Rozhuk Ivan <rozhuk.im_at_gmail.com>
Date: Tue, 09 Dec 2025 15:22:55 UTC 
On Mon, 8 Dec 2025 09:23:52 -0800
Mark Millard <marklmi@yahoo.com> wrote:

> But, as of yet, I've no good evidence for blaming
> jemalloc as a major contributor to those timing
> ratios --or for blaming any other specific part
> of 15.0 .

If you want to bench jmalloc - there is another ways to do that without building something.
Try to find some sythetic benchmarks.
Also jmalloc can be build without OS rebuild and linked with bench.

This 2 things can reduce time to tests, but it will eliminate OS integation factors.
Run same bench on different OS may give more info.