DragonFly users List (threaded) for 2004-12
Re: Getting tired of 5.3
At 2:44 PM -0800 12/14/04, walt wrote:
I don't have any multi-processor machines (nor do I intend to
buy any) but the reason (IMHO) that FreeBSD-current has suffered
in The Responsiveness Wars is their approach to the SMP problem.
The Giant Kernel Lock problem has been preventing any real
progress for over a year (at least) and seems to be going
nowhere very fast. Nobody, even ALC, seems to be able to
solve this horrible problem.
Well, I think that is overstating things a bit. Many parts of
the system sped up very noticeably between 5.2-release and
5.3-release. I am not sure if "user responsiveness" has, because
I (personally) do not use FreeBSD for my desktop. I use it for
running some services, and for what are essentially "batch jobs".
SCHED_ULE was supposed to do a better job at user responsiveness,
but that new feature was still too unreliable for 5.3-release.
There have been many fixes to SCHED_ULE since then (only done in
6.x-current for now), but again I can't say how well it works wrt
I think it is not accurate to say things are "going nowhere".
Garance Alistair Drosehn = gad@xxxxxxxxxxxxxxxxxxxx
Senior Systems Programmer or gad@xxxxxxxxxxx
Rensselaer Polytechnic Institute or drosih@xxxxxxx