On 27/03/2026 00:28, Samuel Thibault wrote:
Michael Kelly, le jeu. 26 mars 2026 17:53:27 +0000, a ecrit:
It's hard to tell. I have tried to run the mypy build, it's still quite
slow, but it seems faster. Possibly its working set is simply really
large.
I guess it'd be simpler to just test with synthetic benchmarks which
exhibit simple memory access patterns.
But, yes, improving performance by lowering the swapping will lead to
less triggering of swap hangs :)
(which conversely is bad knews for reproducing it to be able to fix it)
I can compare the old gnumach code with the latest whilst building mypy
locally. There are a number of bugs and performance issues raised by
this good test case and it doesn't take too long to get into a "bad
way". It's not great for it to be happening on a buildd but it's fine on
my machine.
Cheers,
Mike.
