From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from psmtp.com (na3sys010amx132.postini.com [74.125.245.132]) by kanga.kvack.org (Postfix) with SMTP id D146C6B0032 for ; Fri, 10 May 2013 12:00:42 -0400 (EDT) Date: Fri, 10 May 2013 16:00:41 +0000 From: Christoph Lameter Subject: Re: OOM-killer and strange RSS value in 3.9-rc7 In-Reply-To: <518C4283.7000907@gmail.com> Message-ID: <0000013e8f2c3d5c-8f644524-2805-45f4-b205-29a68dcbc8fd-000000@email.amazonses.com> References: <20130417094750.GB2672@localhost.localdomain> <20130417141909.GA24912@dhcp22.suse.cz> <20130418101541.GC2672@localhost.localdomain> <20130418175513.GA12581@dhcp22.suse.cz> <20130423131558.GH8001@dhcp22.suse.cz> <20130424044848.GI2672@localhost.localdomain> <20130424094732.GB31960@dhcp22.suse.cz> <0000013e3cb0340d-00f360e3-076b-478e-b94c-ddd4476196ce-000000@email.amazonses.com> <20130425060705.GK2672@localhost.localdomain> <0000013e42332267-0b7fb3c0-9150-4058-8850-ae094b455b15-000000@email.amazonses.com> <517B8A5D.1030308@gmail.com> <0000013e56450fd2-c7a854d1-ff7f-47a7-a235-30721fead5e0-000000@email.amazonses.com> <5180883F.3040003@gmail.com> <0000013e65cbcdc9-9a394918-ea30-4d91-97f9-77af82fcda3b-000000@email.amazonses.com> <518BA1F6.4030908@gmail.com> <0000013e8998432e-3c77aa08-34d0-4416-95aa-8b5f6125f6d2-000000@email.amazonses.com> <518C4283.7000907@gmail.com> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-linux-mm@kvack.org List-ID: To: Will Huck Cc: linux-mm@kvack.org On Fri, 10 May 2013, Will Huck wrote: > On 05/09/2013 10:00 PM, Christoph Lameter wrote: > > On Thu, 9 May 2013, Will Huck wrote: > > > > > On 05/02/2013 11:10 PM, Christoph Lameter wrote: > > > > On Wed, 1 May 2013, Will Huck wrote: > > > > > > > > > > Age refers to the mininum / avg / maximum age of the object in > > > > > > ticks. > > > > > Why need monitor the age of the object? > > > > Will give you some idea as to when these objects were created. > > > Thanks for your clarify. ;-) But why mininum / avg / maximum instead of a > > > single value? > > You can see the age of the oldest and youngest object. > > > > It seems that age = jiffies - track->when; can't accurately describe age of > each used object in one slab. The objects in one slab should be same age in > current logic, but jiffies are changed when each time enter into add_location. The objects could be allocated at any time. The track structure is per object not per slab. The "age" refers to the time in jiffies since object allocation. -- 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