From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andi Kleen Subject: Re: [RFC] perf: fix building for ARCv1 Date: Sun, 18 Oct 2015 22:49:53 -0700 Message-ID: <8761235rwe.fsf@tassilo.jf.intel.com> References: <1445088959-3058-1-git-send-email-abrodkin@synopsys.com> <1445166916.9672.10.camel@synopsys.com> <87a8rf6a6p.fsf@tassilo.jf.intel.com> Mime-Version: 1.0 Content-Type: text/plain Return-path: Received: from mga14.intel.com ([192.55.52.115]:19572 "EHLO mga14.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751103AbbJSFuH (ORCPT ); Mon, 19 Oct 2015 01:50:07 -0400 In-Reply-To: (Vineet Gupta's message of "Mon, 19 Oct 2015 04:58:46 +0000") Sender: linux-perf-users-owner@vger.kernel.org List-ID: To: Vineet Gupta Cc: Alexey Brodkin , Aabid Rushdi , "linux-kernel@vger.kernel.org" , "peterz@infradead.org" , "linux-perf-users@vger.kernel.org" , "dvhart@linux.intel.com" , "dsahern@gmail.com" , "acme@redhat.com" Vineet Gupta writes: > > But this user space - so IMHO UP/SMP doesn't matter and we can't simulate them in > C just by itself. It matters when you access the perf ring buffer which is updated by kernel. Also perf is now multi threaded to some degree. -Andi From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752359AbbJSFuJ (ORCPT ); Mon, 19 Oct 2015 01:50:09 -0400 Received: from mga14.intel.com ([192.55.52.115]:19572 "EHLO mga14.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751103AbbJSFuH (ORCPT ); Mon, 19 Oct 2015 01:50:07 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.17,700,1437462000"; d="scan'208";a="829740785" From: Andi Kleen To: Vineet Gupta Cc: Alexey Brodkin , Aabid Rushdi , "linux-kernel\@vger.kernel.org" , "peterz\@infradead.org" , "linux-perf-users\@vger.kernel.org" , "dvhart\@linux.intel.com" , "dsahern\@gmail.com" , "acme\@redhat.com" Subject: Re: [RFC] perf: fix building for ARCv1 References: <1445088959-3058-1-git-send-email-abrodkin@synopsys.com> <1445166916.9672.10.camel@synopsys.com> <87a8rf6a6p.fsf@tassilo.jf.intel.com> Date: Sun, 18 Oct 2015 22:49:53 -0700 In-Reply-To: (Vineet Gupta's message of "Mon, 19 Oct 2015 04:58:46 +0000") Message-ID: <8761235rwe.fsf@tassilo.jf.intel.com> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/24.5 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Vineet Gupta writes: > > But this user space - so IMHO UP/SMP doesn't matter and we can't simulate them in > C just by itself. It matters when you access the perf ring buffer which is updated by kernel. Also perf is now multi threaded to some degree. -Andi