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 068A96B00A2 for ; Mon, 4 May 2009 10:39:41 -0400 (EDT) Received: by yx-out-1718.google.com with SMTP id 36so2106225yxh.26 for ; Mon, 04 May 2009 07:40:18 -0700 (PDT) MIME-Version: 1.0 In-Reply-To: <20090502024719.GA29730@localhost> References: <200904302208.n3UM8t9R016687@imap1.linux-foundation.org> <20090501012212.GA5848@localhost> <20090430194907.82b31565.akpm@linux-foundation.org> <20090502023125.GA29674@localhost> <20090502024719.GA29730@localhost> Date: Mon, 4 May 2009 23:40:18 +0900 Message-ID: <2f11576a0905040740m779464fdobd435a9b88a4ae67@mail.gmail.com> Subject: Re: [RFC][PATCH] vmscan: don't export nr_saved_scan in /proc/zoneinfo From: KOSAKI Motohiro Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Sender: owner-linux-mm@kvack.org To: Wu Fengguang Cc: Andrew Morton , "torvalds@linux-foundation.org" , "lee.schermerhorn@hp.com" , "peterz@infradead.org" , "riel@redhat.com" , "linux-mm@kvack.org" , LKML , Nick Piggin , Christoph Lameter List-ID: > The lru->nr_saved_scan's are not meaningful counters for even kernel > developers. =A0They typically are smaller than 32 and are always 0 for > large lists. So remove them from /proc/zoneinfo. > > Hopefully this interface change won't break too many scripts. > /proc/zoneinfo is too unstructured to be script friendly, and I wonder > the affected scripts - if there are any - are still bleeding since the > not long ago commit "vmscan: split LRU lists into anon & file sets", > which also touched the "scanned" line :) > > If we are to re-export accumulated vmscan counts in the future, they > can go to new lines in /proc/zoneinfo instead of the current form, or > to /sys/devices/system/node/node0/meminfo? > > CC: Christoph Lameter > Signed-off-by: Wu Fengguang Acked-by: KOSAKI Motohiro -- 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