From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S934820AbcJQK70 (ORCPT ); Mon, 17 Oct 2016 06:59:26 -0400 Received: from mx1.redhat.com ([209.132.183.28]:52052 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933447AbcJQK7S (ORCPT ); Mon, 17 Oct 2016 06:59:18 -0400 Date: Mon, 17 Oct 2016 12:58:50 +0200 From: Jiri Olsa To: Andi Kleen Cc: acme@kernel.org, jolsa@kernel.org, sukadev@linux.vnet.ibm.com, eranian@google.com, linux-kernel@vger.kernel.org Subject: Re: Support Intel uncore event lists Message-ID: <20161017105850.GB21993@krava> References: <1476393332-20732-1-git-send-email-andi@firstfloor.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1476393332-20732-1-git-send-email-andi@firstfloor.org> User-Agent: Mutt/1.7.1 (2016-10-04) X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.31]); Mon, 17 Oct 2016 10:58:52 +0000 (UTC) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Oct 13, 2016 at 02:15:22PM -0700, Andi Kleen wrote: > This adds uncore support on top of the recently merged JSON event list > infrastructure for core events. Uncore is everything outside the core, > including memory controllers, PCI, interconnect etc. > > Uncore is more complicated to handle than core events because it uses > many duplicated PMUs, which leads to long event lists and verbose duplicated > outputs. > > In fact previously it was nearly unusable for many cases without special > tools to generate event list and aggregate data (such as > https://github.com/andikleen/pmu-tools/tree/master/ucevent) > > With this patchkit we add: > - Basic support for uncore events in JSON events > - Support aliases that get duplicated over many PMUs transparently > - Support summing up duplicated PMUs per socket > - Support extending the perf stat builtin metrics with simple ratios > specified in the event list. This covers the vast majority of useful > metrics. > > So far mainly servers are supported. Also this is not using full event lists > (which are full of very obscure events) but only for a smaller subset of > curated useful and understandable metrics. > > The actual event lists are not posted, but available at > git://git.kernel.org/pub/scm/linux/kernel/git/ak/linux-misc perf/intel-uncore-json-files-1 > > The code is available here > git://git.kernel.org/pub/scm/linux/kernel/git/ak/linux-misc perf/builtin-json-15 perf test 5 is failing [jolsa@krava perf]$ sudo ./perf test 5 -v ... mem-loads -> cpu/event=0xcd,umask=0x1,ldlat=3/ failed to parse event 'mem-snp-hit:u,cpu/event=mem-snp-hit/u', err 1 test child finished with 1 ---- end ---- parse events tests: FAILED! jirka