Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Sat, 15 Mar 2003 17:12:56 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Sat, 15 Mar 2003 17:12:55 -0500 Received: from holomorphy.com ([66.224.33.161]:38099 "EHLO holomorphy") by vger.kernel.org with ESMTP id ; Sat, 15 Mar 2003 17:12:51 -0500 Date: Sat, 15 Mar 2003 14:23:22 -0800 From: William Lee Irwin III To: Alex Tomas , linux-kernel , ext2-devel@lists.sourceforge.net, Andrew Morton Subject: Re: [PATCH] concurrent inode allocation for ext2 against 2.5.64 Message-ID: <20030315222322.GZ20188@holomorphy.com> Mail-Followup-To: William Lee Irwin III , Alex Tomas , linux-kernel , ext2-devel@lists.sourceforge.net, Andrew Morton References: <20030315220241.GX20188@holomorphy.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20030315220241.GX20188@holomorphy.com> User-Agent: Mutt/1.3.28i Organization: The Domain of Holomorphy Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 4796 Lines: 109 On Sat, Mar 15, 2003 at 02:02:41PM -0800, William Lee Irwin III wrote: > c01dc9ac 4532033 21.4566 .text.lock.dec_and_lock > c0169c0b 3835802 18.1603 .text.lock.dcache > c0106ff4 1741849 8.24666 default_idle More detailed wrt. atomic_dec_and_lock(): c01dc920 1344198 6.36401 atomic_dec_and_lock c01dc920 567 0.0421813 c01dc921 503 0.0374201 c01dc923 8 0.00059515 c01dc924 204 0.0151763 c01dc925 199 0.0148044 c01dc928 211 0.0156971 c01dc92b 335 0.0249219 c01dc92d 27983 2.08176 c01dc930 118 0.00877847 c01dc932 206 0.0153251 c01dc934 181 0.0134653 c01dc936 98 0.00729059 c01dc93a 317972 23.6551 c01dc93c 5 0.000371969 c01dc93e 216 0.0160691 c01dc942 43 0.00319893 c01dc949 176692 13.1448 c01dc962 749 0.055721 c01dc965 809754 60.2407 c01dc967 4 0.000297575 c01dc96a 6005 0.446735 c01dc971 56 0.00416605 c01dc97f 2 0.000148788 c01dc9a1 228 0.0169618 c01dc9a3 217 0.0161435 c01dc9a6 9 0.000669544 c01dc9a7 1328 0.098795 c01dc9a8 141 0.0104895 c01dc9ab 164 0.0122006 c01dc920 : c01dc920: 55 push %ebp c01dc921: 89 e5 mov %esp,%ebp c01dc923: 56 push %esi c01dc924: 53 push %ebx c01dc925: 8b 75 08 mov 0x8(%ebp),%esi c01dc928: 8b 5d 0c mov 0xc(%ebp),%ebx c01dc92b: 8b 16 mov (%esi),%edx c01dc92d: 8d 4a ff lea 0xffffffff(%edx),%ecx c01dc930: 85 c9 test %ecx,%ecx c01dc932: 74 0e je c01dc942 c01dc934: 89 d0 mov %edx,%eax c01dc936: f0 0f b1 0e lock cmpxchg %ecx,(%esi) c01dc93a: 89 c1 mov %eax,%ecx c01dc93c: 39 d1 cmp %edx,%ecx c01dc93e: 75 eb jne c01dc92b c01dc940: eb 5f jmp c01dc9a1 c01dc942: 81 7b 04 ad 4e ad de cmpl $0xdead4ead,0x4(%ebx) c01dc949: 74 17 je c01dc962 c01dc94b: 68 42 c9 1d c0 push $0xc01dc942 c01dc950: 68 4c d1 2e c0 push $0xc02ed14c c01dc955: e8 4e 28 f4 ff call c011f1a8 c01dc95a: 0f 0b ud2a c01dc95c: 7b 00 jnp c01dc95e c01dc95e: 35 d1 2e c0 f0 xor $0xf0c02ed1,%eax c01dc963: fe 0b decb (%ebx) c01dc965: 78 45 js c01dc9ac <.text.lock.dec_and_lock > c01dc967: f0 ff 0e lock decl (%esi) c01dc96a: 0f 94 c0 sete %al c01dc96d: 84 c0 test %al,%al c01dc96f: 74 07 je c01dc978 c01dc971: b8 01 00 00 00 mov $0x1,%eax c01dc976: eb 2b jmp c01dc9a3 c01dc978: 81 7b 04 ad 4e ad de cmpl $0xdead4ead,0x4(%ebx) c01dc97f: 74 0f je c01dc990 c01dc981: 0f 0b ud2a c01dc983: 4a dec %edx c01dc984: 00 35 d1 2e c0 8d add %dh,0x8dc02ed1 c01dc98a: b4 26 mov $0x26,%ah c01dc98c: 00 00 add %al,(%eax) c01dc98e: 00 00 add %al,(%eax) c01dc990: 8a 03 mov (%ebx),%al c01dc992: 84 c0 test %al,%al c01dc994: 7e 08 jle c01dc99e c01dc996: 0f 0b ud2a c01dc998: 4c dec %esp c01dc999: 00 35 d1 2e c0 c6 add %dh,0xc6c02ed1 c01dc99f: 03 01 add (%ecx),%eax c01dc9a1: 31 c0 xor %eax,%eax c01dc9a3: 8d 65 f8 lea 0xfffffff8(%ebp),%esp c01dc9a6: 5b pop %ebx c01dc9a7: 5e pop %esi c01dc9a8: 89 ec mov %ebp,%esp c01dc9aa: 5d pop %ebp c01dc9ab: c3 ret - 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/