On Fri, May 27, 2016 at 04:21:11PM -0700, John Baldwin wrote: > On Friday, May 27, 2016 09:17:01 PM Mateusz Guzik wrote: > > Hello there, > > > > quite some time ago I posted a trivial patch to locking primitives. What > > they do is the inline part tries an atomic op and if that fails the > > actual function is called, which immediately tries the same op. > > > > The obvious optimisation checks for the availability of the lock first. > > > > There concerns about the way it was done previously by relying on > > volatile behaving in a specific way. > > > > Later a simplified version was posted which should not have the concern, > > but the thread died. > > > > I refer you to > > https://lists.freebsd.org/pipermail/freebsd-current/2015-November/058100.html > > for simple benchmark results. > > > > I would like to get the patch in before 11 freeze. > > I think this looks fine. Thanks for expanding the previous patch to cover > more primitives. >
Thanks, committed in https://svnweb.freebsd.org/changeset/base/301157 -- Mateusz Guzik <mjguzik gmail.com> _______________________________________________ freebsd-current@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-current To unsubscribe, send any mail to "freebsd-current-unsubscr...@freebsd.org"
