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 6D2E06B0093 for ; Sun, 5 Dec 2010 12:30:17 -0500 (EST) Received: by pwi6 with SMTP id 6so2366957pwi.14 for ; Sun, 05 Dec 2010 09:30:16 -0800 (PST) From: Minchan Kim Subject: [PATCH v4 5/7] add profile information for invalidated page reclaim Date: Mon, 6 Dec 2010 02:29:13 +0900 Message-Id: In-Reply-To: References: In-Reply-To: References: Sender: owner-linux-mm@kvack.org To: Andrew Morton Cc: Rik van Riel , KOSAKI Motohiro , linux-mm , LKML , Minchan Kim , Wu Fengguang , Johannes Weiner , Nick Piggin , Mel Gorman List-ID: This patch adds profile information about invalidated page reclaim. It's just for profiling for test so it would be discard when the series are merged. Signed-off-by: Minchan Kim Cc: Rik van Riel Cc: KOSAKI Motohiro Cc: Wu Fengguang Cc: Johannes Weiner Cc: Nick Piggin Cc: Mel Gorman --- include/linux/vmstat.h | 4 ++-- mm/swap.c | 3 +++ mm/vmstat.c | 3 +++ 3 files changed, 8 insertions(+), 2 deletions(-) diff --git a/include/linux/vmstat.h b/include/linux/vmstat.h index 833e676..c38ad95 100644 --- a/include/linux/vmstat.h +++ b/include/linux/vmstat.h @@ -30,8 +30,8 @@ enum vm_event_item { PGPGIN, PGPGOUT, PSWPIN, PSWPOUT, FOR_ALL_ZONES(PGALLOC), - PGFREE, PGACTIVATE, PGDEACTIVATE, - PGFAULT, PGMAJFAULT, + PGFREE, PGACTIVATE, PGDEACTIVATE, PGINVALIDATE, + PGRECLAIM, PGFAULT, PGMAJFAULT, FOR_ALL_ZONES(PGREFILL), FOR_ALL_ZONES(PGSTEAL), FOR_ALL_ZONES(PGSCAN_KSWAPD), diff --git a/mm/swap.c b/mm/swap.c index 0f23998..2f21e6e 100644 --- a/mm/swap.c +++ b/mm/swap.c @@ -317,6 +317,7 @@ static void lru_deactivate(struct page *page, struct zone *zone) * is _really_ small and it's non-critical problem. */ SetPageReclaim(page); + __count_vm_event(PGRECLAIM); } else { /* * The page's writeback ends up during pagevec @@ -328,6 +329,8 @@ static void lru_deactivate(struct page *page, struct zone *zone) if (active) __count_vm_event(PGDEACTIVATE); + + __count_vm_event(PGINVALIDATE); update_page_reclaim_stat(zone, page, file, 0); } diff --git a/mm/vmstat.c b/mm/vmstat.c index 3555636..ef6102d 100644 --- a/mm/vmstat.c +++ b/mm/vmstat.c @@ -818,6 +818,9 @@ static const char * const vmstat_text[] = { "pgactivate", "pgdeactivate", + "pginvalidate", + "pgreclaim", + "pgfault", "pgmajfault", -- 1.7.0.4 -- 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/ . Fight unfair telecom policy in Canada: sign http://dissolvethecrtc.ca/ Don't email: email@kvack.org