On Mon, Jan 09, 2023 at 09:20:07AM +0100, Benny Siegert wrote:
> On Sun, Jan 8, 2023 at 12:16 PM Riccardo Mottola
> <riccardo.mott...@libero.it> wrote:
> > I too notice things are slower on NetBSD with Firefox and ArcticFox seems
> > to do better, so the hint that "threads" and "processes" might be an issue
> > is a hint.
>
> I think this has something to do with the relative slowness of
> synchronization primitives in NetBSD, which in turn has to do with the
> HZ setting in the kernel. For instance (not directly related), every
> time the Go runtime needs to to a short wait -- say, 100 ns -- it ends
> up being a 5-10 ms wait. Because Go and Rust are a lot more
> multi-threaded, they use these primitives a lot more.
>
> All this to say: if you want faster Firefox, ultimately you need to
> look into making Rust run faster on NetBSD.
>
> The difference is obvious if you compile lang/rust on NetBSD vs. Linux
> on the same machine.
Hm. with:
ps -sux | grep -i -c firefox
359 ff91esr
409 ff102esr
on NetBSD-9.3_STABLE
same machine (10GB Lenovo W701), same workload
(one element, one zabbix, one zammad, one wikipedia page, one proxmox )
My colleagues tell me that FF105/ FF108 on Linux don't do that
(about 11 or 12 threads).
-is
