From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754547AbZCAIgt (ORCPT ); Sun, 1 Mar 2009 03:36:49 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751915AbZCAIgl (ORCPT ); Sun, 1 Mar 2009 03:36:41 -0500 Received: from mx3.mail.elte.hu ([157.181.1.138]:60393 "EHLO mx3.mail.elte.hu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751875AbZCAIgk (ORCPT ); Sun, 1 Mar 2009 03:36:40 -0500 Date: Sun, 1 Mar 2009 09:36:16 +0100 From: Ingo Molnar To: Jaswinder Singh Rajput Cc: Thomas Gleixner , LKML , x86 maintainers , Paul Mackerras Subject: Re: [git-pull -tip] x86: Basic AMD Support for performance counters Message-ID: <20090301083616.GA1742@elte.hu> References: <1235756278.3914.9.camel@localhost.localdomain> <20090228094018.GF12095@elte.hu> <20090228134434.GA32473@elte.hu> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20090228134434.GA32473@elte.hu> User-Agent: Mutt/1.5.18 (2008-05-17) X-ELTE-VirusStatus: clean X-ELTE-SpamScore: -1.5 X-ELTE-SpamLevel: X-ELTE-SpamCheck: no X-ELTE-SpamVersion: ELTE 2.0 X-ELTE-SpamCheck-Details: score=-1.5 required=5.9 tests=BAYES_00 autolearn=no SpamAssassin version=3.2.3 -1.5 BAYES_00 BODY: Bayesian spam probability is 0 to 1% [score: 0.0000] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org * Ingo Molnar wrote: > Seems to be working fine, here's the output from an Athlon 64 > 3200+ (Sempron) box: > > Performance counter stats for 'ls': > > 17.420811 task clock ticks (msecs) > > 0 CPU migrations (events) > 12 context switches (events) > 583 pagefaults (events) > 29760299 CPU cycles (events) > 29401642 instructions (events) > 12698498 cache references (events) > 66269 cache misses (events) > > Wall-clock time elapsed: 687.999988 msecs The patches cause a crash on another system - an Opteron system spontaneous reboots at this point during early bootup: CPU 0/0x4 -> Node 0 tseg: 00cfe00000 CPU: Physical Processor ID: 0 CPU: Processor Core ID: 0 using C1E aware idle routine AMD Performance Monitoring support detected. ... num counters: 4 ... value mask: 0000000000000000 ... fixed counters: 0 ... counter mask: 000000000000000f ACPI: Core revision 20081204 ftrace: converting mcount calls to 0f 1f 44 00 00 ftrace: allocating 16365 entries in 129 pages Setting APIC routing to physical flat masked ExtINT on CPU#0 ENABLING IO [reboot] this is the CPU type: processor : 15 vendor_id : AuthenticAMD cpu family : 16 model : 2 model name : Quad-Core AMD Opteron(tm) Processor 8356 stepping : 3 cpu MHz : 2300.000 cache size : 512 KB physical id : 4 siblings : 4 core id : 3 cpu cores : 4 fpu : yes fpu_exception : yes cpuid level : 5 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb rdtscp lm 3dnowext 3dnow constant_tsc rep_good pni monitor cx16 popcnt lahf_lm cmp_legacy svm extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw ibs bogomips : 4622.47 TLB size : 1024 4K pages clflush size : 64 cache_alignment : 64 address sizes : 48 bits physical, 48 bits virtual power management: ts ttp tm stc 100mhzsteps hwpstate Ingo