linux-kernel - Re: [patch 08/11] perf_event_open.2: 4.1 add aux

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <561DF78B.7080303@gmail.com>
Date:	Wed, 14 Oct 2015 08:34:51 +0200
From:	"Michael Kerrisk (man-pages)" <mtk.manpages@...il.com>
To:	Vince Weaver <vincent.weaver@...ne.edu>
CC:	mtk.manpages@...il.com, linux-man@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Ingo Molnar <mingo@...hat.com>,
	Arnaldo Carvalho de Melo <acme@...nel.org>,
	Stephane Eranian <eranian@...gle.com>,
	Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
	Borislav Petkov <bp@...en8.de>,
	Frederic Weisbecker <fweisbec@...il.com>,
	"H. Peter Anvin" <hpa@...or.com>, Kaixu Xia <kaixu.xia@...aro.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Mike Galbraith <efault@....de>,
	Robert Richter <rric@...nel.org>,
	Thomas Gleixner <tglx@...utronix.de>, adrian.hunter@...el.com,
	kan.liang@...el.com, markus.t.metzger@...el.com,
	mathieu.poirier@...aro.org
Subject: Re: [patch 08/11] perf_event_open.2: 4.1 add aux_watermark

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 <alexander.shishkin@...ux.intel.com>
> 
> 	perf: Add wakeup watermark control to the AUX area
> 
> 	Signed-off-by: Alexander Shishkin <alexander.shishkin@...ux.intel.com>
> 	Signed-off-by: Peter Zijlstra (Intel) <peterz@...radead.org>
> 	Cc: Borislav Petkov <bp@...en8.de>
> 	Cc: Frederic Weisbecker <fweisbec@...il.com>
> 	Cc: H. Peter Anvin <hpa@...or.com>
> 	Cc: Kaixu Xia <kaixu.xia@...aro.org>
> 	Cc: Linus Torvalds <torvalds@...ux-foundation.org>
> 	Cc: Mike Galbraith <efault@....de>
> 	Cc: Paul Mackerras <paulus@...ba.org>
> 	Cc: Robert Richter <rric@...nel.org>
> 	Cc: Stephane Eranian <eranian@...gle.com>
> 	Cc: Thomas Gleixner <tglx@...utronix.de>
> 	Cc: acme@...radead.org
> 	Cc: adrian.hunter@...el.com
> 	Cc: kan.liang@...el.com
> 	Cc: markus.t.metzger@...el.com
> 	Cc: mathieu.poirier@...aro.org
> 	Link: http://lkml.kernel.org/r/1421237903-181015-10-git-send-email-alexander.shishkin@linux.intel.com
> 	Signed-off-by: Ingo Molnar <mingo@...nel.org>
> 
> Signed-off-by: Vince Weaver <vincent.weaver@...ne.edu>
> 
> 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/
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/