From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752766AbbJNGfA (ORCPT ); Wed, 14 Oct 2015 02:35:00 -0400 Received: from mail-wi0-f172.google.com ([209.85.212.172]:36868 "EHLO mail-wi0-f172.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752420AbbJNGe5 (ORCPT ); Wed, 14 Oct 2015 02:34:57 -0400 Message-ID: <561DF78B.7080303@gmail.com> Date: Wed, 14 Oct 2015 08:34:51 +0200 From: "Michael Kerrisk (man-pages)" User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.7.0 MIME-Version: 1.0 To: Vince Weaver CC: mtk.manpages@gmail.com, linux-man@vger.kernel.org, linux-kernel@vger.kernel.org, Peter Zijlstra , Ingo Molnar , Arnaldo Carvalho de Melo , Stephane Eranian , Alexander Shishkin , Borislav Petkov , Frederic Weisbecker , "H. Peter Anvin" , Kaixu Xia , Linus Torvalds , Mike Galbraith , Robert Richter , Thomas Gleixner , adrian.hunter@intel.com, kan.liang@intel.com, markus.t.metzger@intel.com, mathieu.poirier@linaro.org Subject: Re: [patch 08/11] perf_event_open.2: 4.1 add aux_watermark References: In-Reply-To: Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 07/23/2015 07:14 PM, Vince Weaver wrote: > > > This manpage patch relates to the addition of the aux_watermark attr > field in the following commit: Thanks, Vince. Applied. Cheers, Michael > commit 1a5941312414c71dece6717da9a0fa1303127afa > Author: Alexander Shishkin > > perf: Add wakeup watermark control to the AUX area > > Signed-off-by: Alexander Shishkin > Signed-off-by: Peter Zijlstra (Intel) > Cc: Borislav Petkov > Cc: Frederic Weisbecker > Cc: H. Peter Anvin > Cc: Kaixu Xia > Cc: Linus Torvalds > Cc: Mike Galbraith > Cc: Paul Mackerras > Cc: Robert Richter > Cc: Stephane Eranian > Cc: Thomas Gleixner > Cc: acme@infradead.org > Cc: adrian.hunter@intel.com > Cc: kan.liang@intel.com > Cc: markus.t.metzger@intel.com > Cc: mathieu.poirier@linaro.org > Link: http://lkml.kernel.org/r/1421237903-181015-10-git-send-email-alexander.shishkin@linux.intel.com > Signed-off-by: Ingo Molnar > > Signed-off-by: Vince Weaver > > diff --git a/man2/perf_event_open.2 b/man2/perf_event_open.2 > index 238eb62..19c5c23 100644 > --- a/man2/perf_event_open.2 > +++ b/man2/perf_event_open.2 > @@ -259,6 +259,9 @@ struct perf_event_attr { > samples */ > __s32 clockid; /* clock to use for time fields */ > __u64 sample_regs_intr; /* regs to dump on samples */ > + __u32 aux_watermark; /* aux bytes before wakeup */ > + __u32 __reserved_2; /* align to u64 */ > + > }; > .fi > .in > @@ -357,6 +360,11 @@ is 104 corresponding to the addition of > .I sample_regs_intr > in Linux 3.19. > .\" commit 60e2364e60e86e81bc6377f49779779e6120977f > +.B PERF_ATTR_SIZE_VER5 > +is 112 corresponding to the addition of > +.I aux_watermak > +in Linux 4.1. > +.\" commit 1a5941312414c71dece6717da9a0fa1303127afa > .TP > .I "config" > This specifies which event you want, in conjunction with > @@ -1284,6 +1292,12 @@ with > .BR CLOCK_MONOTONIC , CLOCK_MONOTONIC_RAW , CLOCK_REALTIME , > .BR CLOCK_BOOTTIME ", and " CLOCK_TAI > currently supported. > +.TP > +.IR "aux_watermark" " (since Linux 4.1)" > +.\" commit 1a5941312414c71dece6717da9a0fa1303127afa > +This specifies how much data is required to trigger a > +.B PERF_RECORD_AUX > +sample. > .SS Reading results > Once a > .BR perf_event_open () > -- Michael Kerrisk Linux man-pages maintainer; http://www.kernel.org/doc/man-pages/ Linux/UNIX System Programming Training: http://man7.org/training/