From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail203.messagelabs.com (mail203.messagelabs.com [216.82.254.243]) by kanga.kvack.org (Postfix) with SMTP id AF8976B005C for ; Wed, 10 Jun 2009 05:58:24 -0400 (EDT) Date: Wed, 10 Jun 2009 17:59:50 +0800 From: Wu Fengguang Subject: Re: [patch v3] swap: virtual swap readahead Message-ID: <20090610095950.GA514@localhost> References: <20090609190128.GA1785@cmpxchg.org> <20090609193702.GA2017@cmpxchg.org> <20090610050342.GA8867@localhost> <20090610074508.GA1960@cmpxchg.org> <20090610081132.GA27519@localhost> <20090610173249.50e19966.kamezawa.hiroyu@jp.fujitsu.com> <20090610085638.GA32511@localhost> <1244626976.13761.11593.camel@twins> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1244626976.13761.11593.camel@twins> Sender: owner-linux-mm@kvack.org To: Peter Zijlstra Cc: KAMEZAWA Hiroyuki , Johannes Weiner , Andrew Morton , Rik van Riel , Hugh Dickins , Andi Kleen , Minchan Kim , "linux-mm@kvack.org" , "linux-kernel@vger.kernel.org" , "Barnes, Jesse" List-ID: On Wed, Jun 10, 2009 at 05:42:56PM +0800, Peter Zijlstra wrote: > On Wed, 2009-06-10 at 16:56 +0800, Wu Fengguang wrote: > > > > Yes it worked! But then I run into page allocation failures: > > > > [ 340.639803] Xorg: page allocation failure. order:4, mode:0x40d0 > > [ 340.645744] Pid: 3258, comm: Xorg Not tainted 2.6.30-rc8-mm1 #303 > > [ 340.651839] Call Trace: > > [ 340.654289] [] __alloc_pages_nodemask+0x344/0x6c0 > > [ 340.660645] [] __slab_alloc_page+0xb9/0x3b0 > > [ 340.666472] [] __kmalloc+0x198/0x250 > > [ 340.671786] [] ? i915_gem_execbuffer+0x17f/0x11e0 [i915] > > [ 340.678746] [] i915_gem_execbuffer+0x17f/0x11e0 [i915] > > Jesse Barnes had a patch to add a vmalloc fallback to those largish kms > allocs. > > But order-4 allocs failing isn't really strange, but it might indicate > this patch fragments stuff sooner, although I've seen these particular > failues before. Thanks for the tip. Where is it? I'd like to try it out :) Despite of the xorg failures, the test was able to complete with the listed timing. The numbers are the time each program is able to start: before after 0.02 0.01 N xeyes 0.76 0.68 N firefox 1.88 1.89 N nautilus 3.17 3.25 N nautilus --browser 4.89 4.98 N gthumb 6.47 6.79 N gedit 8.16 8.56 N xpdf /usr/share/doc/shared-mime-info/shared-mime-info-spec.pdf 12.55 12.61 N xterm 14.57 14.99 N mlterm 17.06 17.16 N gnome-terminal 18.90 19.60 N urxvt 23.48 24.26 N gnome-system-monitor 26.52 27.13 N gnome-help 29.65 30.29 N gnome-dictionary 36.12 36.93 N /usr/games/sol 39.27 39.21 N /usr/games/gnometris 42.56 43.61 N /usr/games/gnect 47.03 47.40 N /usr/games/gtali 52.05 51.41 N /usr/games/iagno 55.42 56.21 N /usr/games/gnotravex 61.47 60.58 N /usr/games/mahjongg 67.11 64.68 N /usr/games/gnome-sudoku 75.15 72.42 N /usr/games/glines 79.70 78.61 N /usr/games/glchess 88.48 87.01 N /usr/games/gnomine 96.51 95.03 N /usr/games/gnotski 102.19 100.50 N /usr/games/gnibbles 114.93 108.97 N /usr/games/gnobots2 125.02 120.09 N /usr/games/blackjack 135.11 134.39 N /usr/games/same-gnome 154.50 159.99 N /usr/bin/gnome-window-properties 162.09 176.04 N /usr/bin/gnome-default-applications-properties 173.29 197.12 N /usr/bin/gnome-at-properties 188.21 221.15 N /usr/bin/gnome-typing-monitor 199.93 249.38 N /usr/bin/gnome-at-visual 206.95 272.87 N /usr/bin/gnome-sound-properties 224.49 302.03 N /usr/bin/gnome-at-mobility 234.11 325.73 N /usr/bin/gnome-keybinding-properties 248.59 358.64 N /usr/bin/gnome-about-me 276.27 402.30 N /usr/bin/gnome-display-properties 304.39 439.35 N /usr/bin/gnome-network-preferences 342.01 482.78 N /usr/bin/gnome-mouse-properties 388.58 528.54 N /usr/bin/gnome-appearance-properties 508.47 653.12 N /usr/bin/gnome-control-center 587.57 769.65 N /usr/bin/gnome-keyboard-properties 758.16 1021.65 N : oocalc 830.03 1124.14 N : oodraw 900.03 1246.52 N : ooimpress 993.91 1370.35 N : oomath 1081.89 1478.34 N : ooweb 1161.99 1595.85 N : oowriter It's slower with the patch. Maybe we shall give it another run with the vmalloc patch. Thanks, Fengguang -- 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