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Re: revivesa status 2008/07/09
On Mon, Jul 14, 2008 at 11:49:52PM +0300, Aleksey Cheusov wrote:
> >> In its current form SA threading is a regressive proposition. Even if all
> >> the remaining issues are addressed, what benefits would it bring over and
> >> above 1:1 threading?
> > As I understand it there are two factors in favour of keeping SA:
> > - There was a report of a significant performance gain on single
> > core embedded arm32
> > - If we keep SA for 5.0 it allows people to run a 4.0 userland
> > on a 5.0 kernel while upgrading (and makes COMPAT_40 useful).
> Does anybody know how well 1:1 threading model is in case of huge
> amount of threads, say, several hundreds or even thousands? How well
> N:M in such situations (and NetBSD's SA)? Any benchmarks out there?
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