> On Jul 25, 2015, at 2:10 AM, Mark R V Murray <ma...@freebsd.org> wrote: > > >> On 25 Jul 2015, at 06:06, Scott Long <scott4l...@yahoo.com> wrote: >> >>> I’m working on a premise of “tools, not policy”. I’d like there to be >>> enough harvesting points for the box owner to get the warm fuzzies. >>> If they choose to use less, fine by me. >>> >> >> Sure, and that’s not an unreasonable goal, but the devil is in the details. > > Yes, indeed! > >> It’s an unfortunate fact of modern CPU architecture that even something >> as simple and innocent as a run-time control that checks a variable can >> cause significant performance problems, thanks to the penalty of cache >> misses and bus contention between lots of CPU cores. Maybe these >> “extended” collection points should be controlled with a compile-time >> option? > > They can. I’ve coded it already, but not tested it properly, and will > commit in a week or two. :-)
What you posted this morning for review is a great start. Thanks for the productive conversation on this. Scott _______________________________________________ svn-src-all@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/svn-src-all To unsubscribe, send any mail to "svn-src-all-unsubscr...@freebsd.org"
