From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Michael Kerrisk (man-pages)" Subject: Re: [patch 09/11] perf_event_open.2: 4.1 add PERF_RECORD_ITRACE_START Date: Wed, 14 Oct 2015 08:45:37 +0200 Message-ID: <561DFA11.9040108@gmail.com> References: Mime-Version: 1.0 Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: Sender: linux-man-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Vince Weaver Cc: mtk.manpages-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org, linux-man-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.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-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org, kan.liang-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org, markus.t.metzger-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org, mathieu.poirier-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org List-Id: linux-man@vger.kernel.org On 07/23/2015 07:15 PM, Vince Weaver wrote: > > > This manpage patch relates to the addition of the PERF_RECORD_ITRACE_START > record type in the following commit: Thanks, Vince. Applied. Cheers, Michael > commit ec0d7729bbaed4b9d2d3fada693278e13a3d1368 > Author: Alexander Shishkin > > perf: Add ITRACE_START record to indicate that tracing has started > > 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-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org > Cc: adrian.hunter-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org > Cc: kan.liang-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org > Cc: markus.t.metzger-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org > Cc: mathieu.poirier-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org > Link: http://lkml.kernel.org/r/1421237903-181015-15-git-send-email-alexander.shishkin-VuQAYsv1563Yd54FQh9/CA@public.gmane.org > 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 19c5c23..8ef9ec6 100644 > --- a/man2/perf_event_open.2 > +++ b/man2/perf_event_open.2 > @@ -2505,6 +2505,29 @@ buffer size. > if set then the data returned has overwritten previous data. > .RE > .RE > +.TP > +.BR PERF_RECORD_ITRACE_START " (since Linux 4.1)" > +\" ec0d7729bbaed4b9d2d3fada693278e13a3d1368 > +This record indicates which process has initiated an instruction > +trace event, allowing tools to properly correlate the instruction > +addresses in the AUX buffer with the proper executable. > + > +.in +4n > +.nf > +struct { > + struct perf_event_header header; > + u32 pid; > + u32 tid; > +}; > +.fi > +.RS > +.TP > +.I pid > +process id of the thread starting an instruction trace. > +.TP > +.I tid > +thread id of the thread starting an instruction trace. > +.RE > .RE > .SS Overflow handling > Events can be set to notify when a threshold is crossed, > -- Michael Kerrisk Linux man-pages maintainer; http://www.kernel.org/doc/man-pages/ Linux/UNIX System Programming Training: http://man7.org/training/ -- To unsubscribe from this list: send the line "unsubscribe linux-man" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html