Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1760099AbZDWTqA (ORCPT ); Thu, 23 Apr 2009 15:46:00 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1756603AbZDWTpm (ORCPT ); Thu, 23 Apr 2009 15:45:42 -0400 Received: from e35.co.us.ibm.com ([32.97.110.153]:44250 "EHLO e35.co.us.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755480AbZDWTpl (ORCPT ); Thu, 23 Apr 2009 15:45:41 -0400 Subject: Re: [PATCH 02/22] Do not sanity check order in the fast path From: Dave Hansen To: Mel Gorman Cc: Linux Memory Management List , KOSAKI Motohiro , Christoph Lameter , Nick Piggin , Linux Kernel Mailing List , Lin Ming , Zhang Yanmin , Peter Zijlstra , Pekka Enberg , Andrew Morton In-Reply-To: <1240514784.10627.171.camel@nimitz> References: <1240408407-21848-1-git-send-email-mel@csn.ul.ie> <1240408407-21848-3-git-send-email-mel@csn.ul.ie> <1240416791.10627.78.camel@nimitz> <20090422171151.GF15367@csn.ul.ie> <1240421415.10627.93.camel@nimitz> <20090423001311.GA26643@csn.ul.ie> <1240450447.10627.119.camel@nimitz> <1240514784.10627.171.camel@nimitz> Content-Type: text/plain Date: Thu, 23 Apr 2009 12:45:30 -0700 Message-Id: <1240515930.10627.175.camel@nimitz> Mime-Version: 1.0 X-Mailer: Evolution 2.22.3.1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2682 Lines: 50 On Thu, 2009-04-23 at 12:26 -0700, Dave Hansen wrote: > I'm going to retry this with a NUMA config. Oddly enough, removing the alloc_pages() check didn't do anything to text on a NUMA=y config, either: dave@kernel:~/work/mhp-build$ size i386-numaq-sparse.?/vmlinux text data bss dec hex filename 3460792 449336 1626112 5536240 5479f0 i386-numaq-sparse.0/vmlinux 3460792 449336 1626112 5536240 5479f0 i386-numaq-sparse.1/vmlinux 3460776 449336 1626112 5536224 5479e0 i386-numaq-sparse.2/vmlinux Here's bloatmeter from removing the alloc_pages_node() check: dave@kernel:~/work/mhp-build$ ../linux-2.6.git/scripts/bloat-o-meter i386-numaq-sparse.{1,2}/vmlinux add/remove: 0/0 grow/shrink: 9/16 up/down: 81/-99 (-18) function old new delta st_int_ioctl 2600 2624 +24 tcp_sendmsg 2153 2169 +16 diskstats_show 739 753 +14 iov_shorten 49 58 +9 unmap_vmas 1653 1661 +8 sg_build_indirect 449 455 +6 ahc_linux_biosparam 251 253 +2 nlmclnt_call 557 558 +1 do_mount 1533 1534 +1 skb_icv_walk 420 419 -1 nfs_readpage_truncate_uninitialised_page 288 287 -1 find_first_zero_bit 67 66 -1 enlarge_buffer 339 337 -2 ahc_parse_msg 2340 2338 -2 __get_free_pages 36 33 -3 flock_lock_file_wait 484 480 -4 find_vma_prepare 108 103 -5 arp_ignore 104 99 -5 __udp4_lib_err 312 307 -5 alloc_buddy_huge_page 170 163 -7 pbus_size_mem 907 899 -8 dma_generic_alloc_coherent 245 236 -9 cache_alloc_refill 1168 1158 -10 mempool_alloc_pages 33 17 -16 do_mremap 1208 1188 -20 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/