From: Namhyung Kim <namhyung@kernel.org>
To: Arnaldo Carvalho de Melo <acme@kernel.org>,
Ian Rogers <irogers@google.com>,
Kan Liang <kan.liang@linux.intel.com>,
Namhyung Kim <namhyung@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>,
Adrian Hunter <adrian.hunter@intel.com>,
Peter Zijlstra <peterz@infradead.org>,
Ingo Molnar <mingo@kernel.org>,
LKML <linux-kernel@vger.kernel.org>,
linux-perf-users@vger.kernel.org, Song Liu <song@kernel.org>,
bpf@vger.kernel.org
Subject: Re: [PATCH v2] perf ftrace latency: Add -e option to measure time between two events
Date: Tue, 15 Jul 2025 10:38:20 -0700 [thread overview]
Message-ID: <175260110062.3546942.14666650771483286173.b4-ty@kernel.org> (raw)
In-Reply-To: <20250714052143.342851-1-namhyung@kernel.org>
On Sun, 13 Jul 2025 22:21:43 -0700, Namhyung Kim wrote:
> In addition to the function latency, it can measure events latencies.
> Some kernel tracepoints are paired and it's menningful to measure how
> long it takes between the two events. The latency is tracked for the
> same thread.
>
> Currently it only uses BPF to do the work but it can be lifted later.
> Instead of having separate a BPF program for each tracepoint, it only
> uses generic 'event_begin' and 'event_end' programs to attach to any
> (raw) tracepoints.
>
> [...]
Applied to perf-tools-next, thanks!
Best regards,
Namhyung
prev parent reply other threads:[~2025-07-15 17:38 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-07-14 5:21 Namhyung Kim
2025-07-14 17:28 ` Ian Rogers
2025-07-15 17:38 ` Namhyung Kim [this message]
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