Subject: Re: the path from nathanw_sa -> newlock2
To: None <firstname.lastname@example.org>
From: Bucky Katz <email@example.com>
Date: 02/15/2007 10:58:56
Matt Thomas <firstname.lastname@example.org> writes:
> You could request the OMAP arm changes be pulled up into 4.0. 4.0
> is not yet cast into stone.
Given that we couldn't get the changes into 4.0 in the first place, we
didn't think to do that. But we've been working in -current since the
4.0 split, so it'll be a batch of work to rebase.
> Unless you were the SA syscalls explicitly (and you shouldn't have
> been since we had already revised that API once without preserving
> backward compatiblity which was allowed because it was in -current
> and had not been included in a release branch), the removal of SA
> should have been completely transparent. A newlock2 kernel and
> rebuilt libpthread is all that was needed to take advantage of the
> new 1:1 threading.
A) There's a performance degradation
B) We modified libpthread