Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754553Ab1FUPke (ORCPT ); Tue, 21 Jun 2011 11:40:34 -0400 Received: from mail-bw0-f46.google.com ([209.85.214.46]:55400 "EHLO mail-bw0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752792Ab1FUPkb (ORCPT ); Tue, 21 Jun 2011 11:40:31 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:sender:in-reply-to:references:date :x-google-sender-auth:message-id:subject:from:to:cc:content-type; b=WzZ1f6Mcrt0joB36oI6uQH7UUBUQJrkdJi8r86efuP8wuR+ddUpu/GXi0x/NVcY2Zm 5n5p3iG26VSTzDu1+YQgMe4J3Su7vsmDK2OaVm+1Iw4L6RgOUO7UaYHz4GjXaaAv/ObS 6S6rTqRbItMgS21LYjPzuW0sRiNg4RdXe1ezY= MIME-Version: 1.0 In-Reply-To: <20110621152301.GA5155@redhat.com> References: <4DB989B5.1030703@openvz.org> <20110621152301.GA5155@redhat.com> Date: Tue, 21 Jun 2011 19:40:30 +0400 X-Google-Sender-Auth: kLcz9pN8pIeDp6f6H9y6pkDcTpA Message-ID: Subject: Re: [RFC -tip] perf, x86: Add PERF_COUNT_HW_NMI_WATCHDOG event v2 From: Cyrill Gorcunov To: Don Zickus Cc: Peter Zijlstra , Ingo Molnar , Lin Ming , Arnaldo Carvalho de Melo , Frederic Weisbecker , Stephane Eranian , Vince Weaver , lkml Content-Type: text/plain; charset=ISO-8859-1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1292 Lines: 29 On Tue, Jun 21, 2011 at 7:23 PM, Don Zickus wrote: > On Thu, Apr 28, 2011 at 07:37:25PM +0400, Cyrill Gorcunov wrote: >> Due to restriction and specifics of Netburst PMU we need a separated >> event for NMI watchdog. In particular every Netburst event consume not >> just a counter and config register, but also an additional ESCR register. >> Since ESCR registers are grouped upon counters (i.e. if ESCR is occupied >> for some event there is no room for another event to enter the room until >> it's released) we need to pick up "least" used ESCR (or most available) >> for nmi-watchdog purpose -- MSR_P4_CRU_ESCR2/3 was chosen. >> >> Note that on all other PMUs which support relocation of events between >> counters this event is a simple alias for PERF_COUNT_HW_CPU_CYCLES. > > Cyril, > > What ever happened with this patch? > > Cheers, > Don > Well, it's flowing around, I didn't get any more Ack's other than your. Since it introduces kind of abi I presume more ack's would be welcome before it (possibly) get merged. -- 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/