From mboxrd@z Thu Jan 1 00:00:00 1970 Subject: Regression with SLUB on Netperf and Volanomark From: Tim Chen Reply-To: tim.c.chen@linux.intel.com Content-Type: text/plain Date: Wed, 02 May 2007 11:43:29 -0700 Message-Id: <1178131409.23795.160.camel@localhost.localdomain> Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org Return-Path: To: clameter@sgi.com Cc: suresh.b.siddha@intel.com, yanmin.zhang@intel.com, peter.xihong.wang@intel.com, arjan.van.de.ven@intel.com, linux-kernel@vger.kernel.org, linux-mm@kvack.org List-ID: Christoph, We tested SLUB on a 2 socket Clovertown (Core 2 cpu with 2 cores/socket) and a 2 socket Woodcrest (Core2 cpu with 4 cores/socket). We found that for Netperf's TCP streaming tests in a loop back mode, the TCP streaming performance is about 7% worse when SLUB is enabled on 2.6.21-rc7-mm1 kernel (x86_64). This test have a lot of sk_buff allocation/deallocation. For Volanomark, the performance is 7% worse for Woodcrest and 12% worse for Clovertown. Regards, Tim -- 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