linux-kernel - [PATCH -next 0/2] perf stat: Support inherit events for bperf

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-next>] [day] [month] [year] [list]

Message-Id: <20240904123103.732507-1-wutengda@huaweicloud.com>
Date: Wed,  4 Sep 2024 12:31:01 +0000
From: Tengda Wu <wutengda@...weicloud.com>
To: Peter Zijlstra <peterz@...radead.org>
Cc: Ingo Molnar <mingo@...hat.com>,
	Arnaldo Carvalho de Melo <acme@...nel.org>,
	Namhyung Kim <namhyung@...nel.org>,
	Mark Rutland <mark.rutland@....com>,
	Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
	Jiri Olsa <jolsa@...nel.org>,
	Ian Rogers <irogers@...gle.com>,
	Adrian Hunter <adrian.hunter@...el.com>,
	kan.liang@...ux.intel.com,
	linux-perf-users@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	bpf@...r.kernel.org
Subject: [PATCH -next 0/2] perf stat: Support inherit events for bperf

Hi,

bperf (perf-stat --bpf-counter) has not supported inherit events
during fork() since it was first introduced.

This patch series tries to add this support by:
 1) adding two new bpf programs to monitor task lifecycle;
 2) recording new tasks in the filter map dynamically;
 3) reusing `accum_key` of parent task for new tasks.

Thanks,
Tengda

Tengda Wu (2):
  perf stat: Support inherit events during fork() for bperf
  perf test: Use sqrtloop workload to test bperf event

 tools/perf/tests/shell/stat_bpf_counters.sh   |  2 +-
 tools/perf/util/bpf_counter.c                 |  9 +--
 tools/perf/util/bpf_skel/bperf_follower.bpf.c | 75 +++++++++++++++++--
 tools/perf/util/bpf_skel/bperf_u.h            |  5 ++
 4 files changed, 79 insertions(+), 12 deletions(-)

-- 
2.34.1