Re: [patch 06/11] perf_event_open.2: 4.1 add AUX sample support

From	"Michael Kerrisk (man-pages)" <mtk.manpages@gmail.com>
Newsgroups	linux.kernel
Subject	Re: [patch 06/11] perf_event_open.2: 4.1 add AUX sample support
Date	2015-10-14 08:40 +0200
Message-ID	<qjnTb-78Z-7@gated-at.bofh.it> (permalink)
References	<pPsal-4z3-17@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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On 07/23/2015 07:13 PM, Vince Weaver wrote:
> 
> This manpage patch relates to the addition of the AUX sample type
> as added in the following commit:

Thanks, Vince. Applied.

Cheers,

Michael



> 	commit 68db7e98c3a6ebe7284b6cf14906ed7c55f3f7f0
> 	Author: Alexander Shishkin <alexander.shishkin@linux.intel.com>
> 
> 	perf: Add AUX record
> 
> 	Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
> 	Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
> 	Cc: Arnaldo Carvalho de Melo <acme@infradead.org>
> 	Cc: Borislav Petkov <bp@alien8.de>
> 	Cc: Frederic Weisbecker <fweisbec@gmail.com>
> 	Cc: H. Peter Anvin <hpa@zytor.com>
> 	Cc: Kaixu Xia <kaixu.xia@linaro.org>
> 	Cc: Linus Torvalds <torvalds@linux-foundation.org>
> 	Cc: Mike Galbraith <efault@gmx.de>
> 	Cc: Paul Mackerras <paulus@samba.org>
> 	Cc: Robert Richter <rric@kernel.org>
> 	Cc: Stephane Eranian <eranian@google.com>
> 	Cc: Thomas Gleixner <tglx@linutronix.de>
> 	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/1421237903-181015-7-git-send-email-alexander.shishkin@linux.intel.com
> 	Signed-off-by: Ingo Molnar <mingo@kernel.org>
> 
> 
> Signed-off-by: Vince Weaver <vincent.weaver@maine.edu>
>  
> diff --git a/man2/perf_event_open.2 b/man2/perf_event_open.2
> index bd6c4c9..dfb0b64 100644
> --- a/man2/perf_event_open.2
> +++ b/man2/perf_event_open.2
> @@ -2445,6 +2445,39 @@ is the flags information.
>  .I filename
>  is a string describing the backing of the allocated memory.
>  .RE
> +.TP
> +.BR PERF_RECORD_AUX " (since Linux 4.1)"
> +\" commit 68db7e98c3a6ebe7284b6cf14906ed7c55f3f7f0
> +This record reports that new data is available in the separate
> +AUX buffer region.
> +
> +.in +4n
> +.nf
> +struct {
> +    struct perf_event_header header;
> +    u64 aux_offset;
> +    u64 aux_size;
> +    u64 flags;
> +    struct sample_id sample_id;
> +};
> +.fi
> +.RS
> +.TP
> +.I aux_offset
> +offset in the AUX mmap region where the new data begins.
> +.TP
> +.I aux_size
> +size of the data made available.
> +.TP
> +.I flags
> +describes the aux update.
> +.RS
> +.TP
> +.B PERF_AUX_FLAG_TRUNCATED
> +if set then the data returned was truncated to fit the available
> +buffer size.
> +.RE
> +.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/
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Re: [patch 06/11] perf_event_open.2: 4.1 add AUX sample support "Michael Kerrisk (man-pages)" <mtk.manpages@gmail.com> - 2015-10-14 08:40 +0200

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