On Fri, 2011-07-29 at 16:35 +0200, Peter Zijlstra wrote: > On Fri, 2011-07-29 at 16:31 +0200, Mike Galbraith wrote: > > So it seems push/pull logic _may_ be my scalability problem. Even > > though there's nothing that can be pushed/pulled, it's hammering a few > > locks from many cores, so cores perturb each other enough despite > > isolation, to fail once enough cores are active. > > > > Does that look like a reasonable explanation for my jitter increase? > > It is, Steve actually had patches for that.. Thanks for confirming. I know a guy (me) who would _love_ to test them :) Diagnosing is one thing, figuring out how to fix such an issue is quite another matter. -Mike -- To unsubscribe from this list: send the line "unsubscribe linux-rt-users" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html