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Date: Mon, 16 Mar 2015 11:10:35 +0900 From: Namhyung Kim <namhyung@...nel.org> To: Ingo Molnar <mingo@...nel.org> Cc: Arnaldo Carvalho de Melo <acme@...nel.org>, Peter Zijlstra <a.p.zijlstra@...llo.nl>, Jiri Olsa <jolsa@...hat.com>, LKML <linux-kernel@...r.kernel.org>, David Ahern <dsahern@...il.com>, Minchan Kim <minchan@...nel.org>, Joonsoo Kim <js1304@...il.com> Subject: Re: [RFC/PATCHSET 0/6] perf kmem: Implement page allocation analysis (v1) On Thu, Mar 12, 2015 at 11:58:37PM +0900, Namhyung Kim wrote: > On Thu, Mar 12, 2015 at 11:41:19AM +0100, Ingo Molnar wrote: > > So there's one thing that would be useful: to track pages allocated on > > one node, but freed on another. Those kinds of allocation/free > > patterns are especially expensive and might make sense to visualize. > > I think it can be done easily as slab analysis already contains the info. Hmm.. it seems slab events provide the node info but page events don't. Without it, I don't know which node a page is in so cannot determine such cross-node alloc+free patterns. Thanks, Namhyung -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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