From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail202.messagelabs.com (mail202.messagelabs.com [216.82.254.227]) by kanga.kvack.org (Postfix) with SMTP id 7E7706B02A4 for ; Fri, 16 Jul 2010 06:16:53 -0400 (EDT) Received: from m2.gw.fujitsu.co.jp ([10.0.50.72]) by fgwmail7.fujitsu.co.jp (Fujitsu Gateway) with ESMTP id o6GAGpOK014329 for (envelope-from kosaki.motohiro@jp.fujitsu.com); Fri, 16 Jul 2010 19:16:51 +0900 Received: from smail (m2 [127.0.0.1]) by outgoing.m2.gw.fujitsu.co.jp (Postfix) with ESMTP id D623B45DE55 for ; Fri, 16 Jul 2010 19:16:50 +0900 (JST) Received: from s2.gw.fujitsu.co.jp (s2.gw.fujitsu.co.jp [10.0.50.92]) by m2.gw.fujitsu.co.jp (Postfix) with ESMTP id AE52945DE4F for ; Fri, 16 Jul 2010 19:16:50 +0900 (JST) Received: from s2.gw.fujitsu.co.jp (localhost.localdomain [127.0.0.1]) by s2.gw.fujitsu.co.jp (Postfix) with ESMTP id 8FEA31DB803F for ; Fri, 16 Jul 2010 19:16:50 +0900 (JST) Received: from m108.s.css.fujitsu.com (m108.s.css.fujitsu.com [10.249.87.108]) by s2.gw.fujitsu.co.jp (Postfix) with ESMTP id 4044C1DB803A for ; Fri, 16 Jul 2010 19:16:47 +0900 (JST) From: KOSAKI Motohiro Subject: [PATCH 5/7] memcg, vmscan: add memcg reclaim tracepoint In-Reply-To: <20100716191006.7369.A69D9226@jp.fujitsu.com> References: <20100716191006.7369.A69D9226@jp.fujitsu.com> Message-Id: <20100716191608.7378.A69D9226@jp.fujitsu.com> MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Date: Fri, 16 Jul 2010 19:16:46 +0900 (JST) Sender: owner-linux-mm@kvack.org To: LKML , linux-mm , Andrew Morton , Mel Gorman , KAMEZAWA Hiroyuki , Nishimura Daisuke Cc: kosaki.motohiro@jp.fujitsu.com List-ID: Memcg also need to trace reclaim progress as direct reclaim. This patch add it. Signed-off-by: KOSAKI Motohiro --- include/trace/events/vmscan.h | 28 ++++++++++++++++++++++++++++ mm/vmscan.c | 19 ++++++++++++++++++- 2 files changed, 46 insertions(+), 1 deletions(-) diff --git a/include/trace/events/vmscan.h b/include/trace/events/vmscan.h index bd749c1..cc19cb0 100644 --- a/include/trace/events/vmscan.h +++ b/include/trace/events/vmscan.h @@ -99,6 +99,19 @@ DEFINE_EVENT(mm_vmscan_direct_reclaim_begin_template, mm_vmscan_direct_reclaim_b TP_ARGS(order, may_writepage, gfp_flags) ); +DEFINE_EVENT(mm_vmscan_direct_reclaim_begin_template, mm_vmscan_memcg_reclaim_begin, + + TP_PROTO(int order, int may_writepage, gfp_t gfp_flags), + + TP_ARGS(order, may_writepage, gfp_flags) +); + +DEFINE_EVENT(mm_vmscan_direct_reclaim_begin_template, mm_vmscan_memcg_softlimit_reclaim_begin, + + TP_PROTO(int order, int may_writepage, gfp_t gfp_flags), + + TP_ARGS(order, may_writepage, gfp_flags) +); DECLARE_EVENT_CLASS(mm_vmscan_direct_reclaim_end_template, @@ -124,6 +137,21 @@ DEFINE_EVENT(mm_vmscan_direct_reclaim_end_template, mm_vmscan_direct_reclaim_end TP_ARGS(nr_reclaimed) ); +DEFINE_EVENT(mm_vmscan_direct_reclaim_end_template, mm_vmscan_memcg_reclaim_end, + + TP_PROTO(unsigned long nr_reclaimed), + + TP_ARGS(nr_reclaimed) +); + +DEFINE_EVENT(mm_vmscan_direct_reclaim_end_template, mm_vmscan_memcg_softlimit_reclaim_end, + + TP_PROTO(unsigned long nr_reclaimed), + + TP_ARGS(nr_reclaimed) +); + + TRACE_EVENT(mm_vmscan_lru_isolate, TP_PROTO(int order, diff --git a/mm/vmscan.c b/mm/vmscan.c index 89b4287..21eb94f 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -1943,6 +1943,10 @@ unsigned long mem_cgroup_shrink_node_zone(struct mem_cgroup *mem, sc.gfp_mask = (gfp_mask & GFP_RECLAIM_MASK) | (GFP_HIGHUSER_MOVABLE & ~GFP_RECLAIM_MASK); + trace_mm_vmscan_memcg_softlimit_reclaim_begin(0, + sc.may_writepage, + sc.gfp_mask); + /* * NOTE: Although we can get the priority field, using it * here is not a good idea, since it limits the pages we can scan. @@ -1951,6 +1955,9 @@ unsigned long mem_cgroup_shrink_node_zone(struct mem_cgroup *mem, * the priority and make it zero. */ shrink_zone(0, zone, &sc); + + trace_mm_vmscan_memcg_softlimit_reclaim_end(sc.nr_reclaimed); + return sc.nr_reclaimed; } @@ -1960,6 +1967,7 @@ unsigned long try_to_free_mem_cgroup_pages(struct mem_cgroup *mem_cont, unsigned int swappiness) { struct zonelist *zonelist; + unsigned long nr_reclaimed; struct scan_control sc = { .may_writepage = !laptop_mode, .may_unmap = 1, @@ -1974,7 +1982,16 @@ unsigned long try_to_free_mem_cgroup_pages(struct mem_cgroup *mem_cont, sc.gfp_mask = (gfp_mask & GFP_RECLAIM_MASK) | (GFP_HIGHUSER_MOVABLE & ~GFP_RECLAIM_MASK); zonelist = NODE_DATA(numa_node_id())->node_zonelists; - return do_try_to_free_pages(zonelist, &sc); + + trace_mm_vmscan_memcg_reclaim_begin(0, + sc.may_writepage, + sc.gfp_mask); + + nr_reclaimed = do_try_to_free_pages(zonelist, &sc); + + trace_mm_vmscan_memcg_reclaim_end(nr_reclaimed); + + return nr_reclaimed; } #endif -- 1.6.5.2 -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org