Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756264Ab2FNVKM (ORCPT ); Thu, 14 Jun 2012 17:10:12 -0400 Received: from merlin.infradead.org ([205.233.59.134]:59742 "EHLO merlin.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754206Ab2FNVKL convert rfc822-to-8bit (ORCPT ); Thu, 14 Jun 2012 17:10:11 -0400 Message-ID: <1339708192.2559.40.camel@twins> Subject: Re: [PATCH 1/6] perf, x86: Making hardware events tranlations sysfs available From: Peter Zijlstra To: Jiri Olsa Cc: acme@redhat.com, mingo@elte.hu, paulus@samba.org, cjashfor@linux.vnet.ibm.com, fweisbec@gmail.com, eranian@google.com, linux-kernel@vger.kernel.org Date: Thu, 14 Jun 2012 23:09:52 +0200 In-Reply-To: <1339706321-8802-2-git-send-email-jolsa@redhat.com> References: <1339706321-8802-1-git-send-email-jolsa@redhat.com> <1339706321-8802-2-git-send-email-jolsa@redhat.com> Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7BIT X-Mailer: Evolution 3.2.2- Mime-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1731 Lines: 47 On Thu, 2012-06-14 at 22:38 +0200, Jiri Olsa wrote: > Making hardware events tranlations available throught the sysfs. > Adding 'events' group attribute under the sysfs x86 PMU record > with attribute/file for each hardware event: > > # ls /sys/devices/cpu/events/ > branch_instructions > branch_misses > bus_cycles > cache_misses > cache_references > cycles > instructions > ref_cycles > stalled_cycles_backend > stalled_cycles_frontend > > The file - ID mappings is: > > file hw id > ---------------------------------------------------------------- > cycles PERF_COUNT_HW_CPU_CYCLES > instructions PERF_COUNT_HW_INSTRUCTIONS > cache_references PERF_COUNT_HW_CACHE_REFERENCES > cache_misses PERF_COUNT_HW_CACHE_MISSES > branch_instructions PERF_COUNT_HW_BRANCH_INSTRUCTIONS > branch_misses PERF_COUNT_HW_BRANCH_MISSES > bus_cycles PERF_COUNT_HW_BUS_CYCLES > stalled_cycles_frontend PERF_COUNT_HW_STALLED_CYCLES_FRONTEND > stalled_cycles_backend PERF_COUNT_HW_STALLED_CYCLES_BACKEND > ref_cycles PERF_COUNT_HW_REF_CPU_CYCLES > > Each attribute/file contains HW ID event translation for the currently > running CPU model > > # cat /sys/devices/cpu/events/instructions > 0xc0 Why not have it consistent with the stuff done for uncore where events read: 'event=0xc0', ie the regular field=value stuff. -- 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/