linux-kernel - Re: [PATCH v2 1/5] perf tools: Improve handling of hybrid PMUs in perf_event_attr_

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: <174180923280.2923844.4550428583496571868.b4-ty@kernel.org>
Date: Wed, 12 Mar 2025 12:53:52 -0700
From: Namhyung Kim <namhyung@...nel.org>
To: Peter Zijlstra <peterz@...radead.org>, Ingo Molnar <mingo@...hat.com>, 
 Arnaldo Carvalho de Melo <acme@...nel.org>, 
 Mark Rutland <mark.rutland@....com>, 
 Alexander Shishkin <alexander.shishkin@...ux.intel.com>, 
 Jiri Olsa <jolsa@...nel.org>, Adrian Hunter <adrian.hunter@...el.com>, 
 Kan Liang <kan.liang@...ux.intel.com>, James Clark <james.clark@...aro.org>, 
 Dominique Martinet <asmadeus@...ewreck.org>, 
 Andi Kleen <ak@...ux.intel.com>, linux-perf-users@...r.kernel.org, 
 linux-kernel@...r.kernel.org, Dapeng Mi <dapeng1.mi@...ux.intel.com>, 
 Thomas Falcon <thomas.falcon@...el.com>, Ian Rogers <irogers@...gle.com>
Subject: Re: [PATCH v2 1/5] perf tools: Improve handling of hybrid PMUs in
 perf_event_attr__fprintf

On Thu, 06 Mar 2025 18:39:02 -0800, Ian Rogers wrote:
> Support the PMU name from the legacy hardware and hw_cache PMU
> extended types.  Remove some macros and make variables more intention
> revealing, rather than just being called "value".
> 
> Before:
> ```
> $ perf stat -vv -e instructions true
> ...
> ------------------------------------------------------------
> perf_event_attr:
>   type                             0 (PERF_TYPE_HARDWARE)
>   size                             136
>   config                           0xa00000001
>   sample_type                      IDENTIFIER
>   read_format                      TOTAL_TIME_ENABLED|TOTAL_TIME_RUNNING
>   disabled                         1
>   inherit                          1
>   enable_on_exec                   1
>   exclude_guest                    1
> ------------------------------------------------------------
> sys_perf_event_open: pid 181636  cpu -1  group_fd -1  flags 0x8 = 5
> ------------------------------------------------------------
> perf_event_attr:
>   type                             0 (PERF_TYPE_HARDWARE)
>   size                             136
>   config                           0x400000001
>   sample_type                      IDENTIFIER
>   read_format                      TOTAL_TIME_ENABLED|TOTAL_TIME_RUNNING
>   disabled                         1
>   inherit                          1
>   enable_on_exec                   1
>   exclude_guest                    1
> ------------------------------------------------------------
> sys_perf_event_open: pid 181636  cpu -1  group_fd -1  flags 0x8 = 6
> ...
> ```
> 
> [...]
Applied to perf-tools-next, thanks!

Best regards,
Namhyung