On Thu, Mar 30, 2017 at 09:48:55AM -0700, Shakeel Butt wrote: > > A more useful metric for memory pressure at this point is quantifying > > that time you spend thrashing: time the job spends in direct reclaim > > and on the flipside time the job waits for recently evicted pages to > > come back. Combined, that gives you a good measure of overhead from > > memory pressure; putting that in relation to a useful baseline of > > meaningful work done gives you a portable scale of how effictively > > your job is running. > > > > I'm working on that right now, hopefully I'll have something useful > > soon. > > Johannes, is the work you are doing only about file pages or will it > equally apply to anon pages as well? It will work on both, with the caveat that *any* swapin is counted as memory delay, whereas only cache misses of recently evicted entries count toward it (we don't have timestamped shadow entries for anon). -- To unsubscribe from this list: send the line "unsubscribe cgroups" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
