Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751122AbVLTQay (ORCPT ); Tue, 20 Dec 2005 11:30:54 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751124AbVLTQay (ORCPT ); Tue, 20 Dec 2005 11:30:54 -0500 Received: from ms-smtp-02.nyroc.rr.com ([24.24.2.56]:23948 "EHLO ms-smtp-02.nyroc.rr.com") by vger.kernel.org with ESMTP id S1751122AbVLTQax (ORCPT ); Tue, 20 Dec 2005 11:30:53 -0500 Date: Tue, 20 Dec 2005 11:29:30 -0500 (EST) From: Steven Rostedt X-X-Sender: rostedt@gandalf.stny.rr.com To: Ingo Molnar cc: Andrew Morton , Matt Mackall , john stultz , Gunter Ohrner , linux-kernel@vger.kernel.org Subject: Re: [PATCH RT 00/02] SLOB optimizations In-Reply-To: <20051220161337.GA10343@elte.hu> Message-ID: References: <1134790400.13138.160.camel@localhost.localdomain> <1134860251.13138.193.camel@localhost.localdomain> <20051220133230.GC24408@elte.hu> <20051220135725.GA29392@elte.hu> <1135093460.13138.302.camel@localhost.localdomain> <20051220161337.GA10343@elte.hu> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1543 Lines: 57 On Tue, 20 Dec 2005, Ingo Molnar wrote: > > Tests: > > ===== > > could you also post the output of 'size mm/slob.o', with and without > these patches, with CONFIG_EMBEDDED and CONFIG_CC_OPTIMIZE_FOR_SIZE > enabled? (and with all debugging options disabled) Both the UP and the > SMP overhead would be interesting to see. > Well, there is definitely a hit there: rt (slob new): size mm/slob.o text data bss dec hex filename 2051 112 233 2396 95c mm/slob.o without size mm/slob.o text data bss dec hex filename 1331 120 8 1459 5b3 mm/slob.o rt smp (slob new) size mm/slob.o text data bss dec hex filename 2297 120 233 2650 a5a mm/slob.o without size mm/slob.o text data bss dec hex filename 1573 140 8 1721 6b9 mm/slob.o So, should this be a third memory managment system? A fast_slob? Just for kicks here's slab.o: rt: size mm/slab.o text data bss dec hex filename 8896 556 144 9596 257c mm/slab.o rt smp: size mm/slab.o text data bss dec hex filename 9679 640 84 10403 28a3 mm/slab.o So there's still a great improvement on that (maybe not the bss though). -- Steve - 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/