From: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
To: Wu Fengguang <fengguang.wu@intel.com>
Cc: kosaki.motohiro@jp.fujitsu.com,
Andrew Morton <akpm@linux-foundation.org>,
Minchan Kim <minchan.kim@gmail.com>,
Dave Young <hidave.darkstar@gmail.com>,
linux-mm <linux-mm@kvack.org>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
Mel Gorman <mel@linux.vnet.ibm.com>,
KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>,
Christoph Lameter <cl@linux.com>,
Dave Chinner <david@fromorbit.com>,
David Rientjes <rientjes@google.com>
Subject: Re: [patch] vmstat: account page allocation failures
Date: Thu, 28 Apr 2011 22:50:18 +0900 (JST) [thread overview]
Message-ID: <20110428225144.3D4D.A69D9226@jp.fujitsu.com> (raw)
In-Reply-To: <20110428133838.GA12573@localhost>
> nopage:
> + inc_zone_state(preferred_zone, NR_ALLOC_FAIL);
> + /* count_zone_vm_events(PGALLOCFAIL, preferred_zone, 1 << order); */
> if (!(gfp_mask & __GFP_NOWARN) && printk_ratelimit()) {
> unsigned int filter = SHOW_MEM_FILTER_NODES;
>
> --- linux-next.orig/mm/vmstat.c 2011-04-28 21:34:30.000000000 +0800
> +++ linux-next/mm/vmstat.c 2011-04-28 21:34:35.000000000 +0800
> @@ -879,6 +879,7 @@ static const char * const vmstat_text[]
> "nr_shmem",
> "nr_dirtied",
> "nr_written",
> + "nr_alloc_fail",
I'm using very similar patch for debugging. However, this is useless for
admins because typical linux load have plenty GFP_ATOMIC allocation failure.
So, typical user have no way that failure rate is high or not.
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next prev parent reply other threads:[~2011-04-28 13:50 UTC|newest]
Thread overview: 43+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-04-26 5:49 readahead and oom Dave Young
2011-04-26 5:55 ` Wu Fengguang
2011-04-26 6:05 ` Dave Young
2011-04-26 6:07 ` Dave Young
2011-04-26 6:25 ` Wu Fengguang
2011-04-26 6:29 ` Dave Young
2011-04-26 6:34 ` Wu Fengguang
2011-04-26 6:50 ` KOSAKI Motohiro
2011-04-26 7:41 ` Minchan Kim
2011-04-26 9:20 ` Wu Fengguang
2011-04-26 9:28 ` Minchan Kim
2011-04-26 10:18 ` Pekka Enberg
2011-04-26 19:47 ` Andrew Morton
2011-04-28 4:19 ` Wu Fengguang
2011-04-28 13:36 ` [RFC][PATCH] mm: cut down __GFP_NORETRY page allocation failures Wu Fengguang
2011-04-28 13:38 ` [patch] vmstat: account " Wu Fengguang
2011-04-28 13:50 ` KOSAKI Motohiro [this message]
2011-04-29 2:28 ` [RFC][PATCH] mm: cut down __GFP_NORETRY " Wu Fengguang
2011-04-29 2:58 ` Wu Fengguang
2011-04-30 14:17 ` Wu Fengguang
2011-05-01 16:35 ` Minchan Kim
2011-05-01 16:37 ` Minchan Kim
2011-05-02 10:14 ` KOSAKI Motohiro
2011-05-03 0:53 ` Minchan Kim
2011-05-03 1:25 ` KOSAKI Motohiro
2011-05-02 10:29 ` Wu Fengguang
2011-05-02 11:08 ` Wu Fengguang
2011-05-03 0:49 ` Minchan Kim
2011-05-03 3:51 ` Wu Fengguang
2011-05-03 4:17 ` Minchan Kim
2011-05-02 13:29 ` Wu Fengguang
2011-05-02 13:49 ` Wu Fengguang
2011-05-03 0:27 ` Satoru Moriya
2011-05-03 2:49 ` Wu Fengguang
2011-05-04 1:56 ` Dave Young
2011-05-04 2:32 ` Dave Young
2011-05-04 2:56 ` Wu Fengguang
2011-05-04 4:23 ` Wu Fengguang
2011-05-04 4:00 ` Wu Fengguang
2011-05-04 7:33 ` Dave Young
2011-04-26 6:13 ` readahead and oom Wu Fengguang
2011-04-26 6:23 ` Dave Young
2011-04-26 9:37 ` [PATCH] mm: readahead page allocations are OK to fail Wu Fengguang
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