From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-qc0-f179.google.com (mail-qc0-f179.google.com [209.85.216.179]) by kanga.kvack.org (Postfix) with ESMTP id 1091F6B0031 for ; Thu, 16 Jan 2014 13:26:56 -0500 (EST) Received: by mail-qc0-f179.google.com with SMTP id e16so2611874qcx.38 for ; Thu, 16 Jan 2014 10:26:55 -0800 (PST) Received: from qmta11.emeryville.ca.mail.comcast.net (qmta11.emeryville.ca.mail.comcast.net. [2001:558:fe2d:44:76:96:27:211]) by mx.google.com with ESMTP id pg6si10753526qeb.149.2014.01.16.10.26.54 for ; Thu, 16 Jan 2014 10:26:55 -0800 (PST) Date: Thu, 16 Jan 2014 12:26:52 -0600 (CST) From: Christoph Lameter Subject: Re: [PATCH 0/9] re-shrink 'struct page' when SLUB is on. In-Reply-To: <52D81214.7070608@sr71.net> Message-ID: References: <20140103180147.6566F7C1@viggo.jf.intel.com> <20140103141816.20ef2a24c8adffae040e53dc@linux-foundation.org> <20140106043237.GE696@lge.com> <52D05D90.3060809@sr71.net> <20140110153913.844e84755256afd271371493@linux-foundation.org> <52D0854F.5060102@sr71.net> <20140113014408.GA25900@lge.com> <52D41F52.5020805@sr71.net> <52D5B48D.30006@sr71.net> <52D81214.7070608@sr71.net> Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-linux-mm@kvack.org List-ID: To: Dave Hansen Cc: Joonsoo Kim , Pekka Enberg , Andrew Morton , "linux-mm@kvack.org" , LKML On Thu, 16 Jan 2014, Dave Hansen wrote: > This was a really tight loop where the caches are really hot, but it did > show the large 'struct page' winning: > > http://sr71.net/~dave/intel/slub/slub-perf-20140109.png > > As I said in the earlier description, the paravirt code doing interrupt > disabling was what really hurt the two spinlock cases. Hrm... Ok. in that case the additional complexity may be justified. -- 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