From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from psmtp.com (na3sys010amx113.postini.com [74.125.245.113]) by kanga.kvack.org (Postfix) with SMTP id F3F3E6B02AC for ; Tue, 13 Dec 2011 21:36:57 -0500 (EST) Received: by yenq10 with SMTP id q10so321882yen.14 for ; Tue, 13 Dec 2011 18:36:57 -0800 (PST) Date: Tue, 13 Dec 2011 18:36:53 -0800 (PST) From: David Rientjes Subject: RE: [PATCH 1/3] slub: set a criteria for slub node partial adding In-Reply-To: Message-ID: References: <1322814189-17318-1-git-send-email-alex.shi@intel.com> <1323419402.16790.6105.camel@debian> <6E3BC7F7C9A4BF4286DD4C043110F30B67236EED18@shsmsx502.ccr.corp.intel.com> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-linux-mm@kvack.org List-ID: To: "Shi, Alex" Cc: Christoph Lameter , "penberg@kernel.org" , "linux-kernel@vger.kernel.org" , "linux-mm@kvack.org" , Eric Dumazet On Tue, 13 Dec 2011, David Rientjes wrote: > > > { > > > n->nr_partial++; > > > - if (tail == DEACTIVATE_TO_TAIL) > > > - list_add_tail(&page->lru, &n->partial); > > > - else > > > - list_add(&page->lru, &n->partial); > > > + list_add_tail(&page->lru, &n->partial); > > > } > > > 2 machines (one netserver, one netperf) both with 16 cores, 64GB memory with netperf-2.4.5 comparing Linus' -git with and without this patch: threads SLUB SLUB+patch 16 116614 117213 (+0.5%) 32 216436 215065 (-0.6%) 48 299991 299399 (-0.2%) 64 373753 374617 (+0.2%) 80 435688 435765 (UNCH) 96 494630 496590 (+0.4%) 112 546766 546259 (-0.1%) This suggests the difference is within the noise, so this patch neither helps nor hurts netperf on my setup, as expected. -- 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 internet charges in Canada: sign http://stopthemeter.ca/ Don't email: email@kvack.org