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From: sashiko-bot@kernel.org
To: "Ian Rogers" <irogers@google.com>
Cc: linux-perf-users@vger.kernel.org
Subject: Re: [PATCH v2 2/9] perf python sctop: Fix offline interval printing and test flakiness
Date: Tue, 29 Sep 2026 06:37:33 +0000	[thread overview]
Message-ID: <20260929063733.BB3871F000FF@smtp.kernel.org> (raw)
In-Reply-To: <20260929062937.374137-3-irogers@google.com>

> In sctop.py:
> - If an earlier interval elapsed and printed an empty table before the
>   target comm ('sleep') executed any syscalls, analyzer.printed became
>   True and the final partial interval containing the target comm's
>   syscalls was never flushed at EOF. Flush print_current_totals() in
>   finally when analyzer.syscalls is non-empty as well as when nothing
>   has been printed yet.
> - Initialize analyzer.e_machine after creating perf.session rather than
>   when session is still None.
> 
> In test_sctop_python.sh:
> - Use a private temporary directory via 'mktemp -d'.
> - Drop '-a' and pass '-B -N --no-bpf-event' to 'perf record', and sleep
>   briefly in the subshell ('sh -c "sleep 0.1; sleep 0.05"') with a
>   bounded retry loop so 'sleep's PERF_RECORD_COMM and sys_enter events
>   are reliably captured under heavy load.
> 
> Fixes: b83f0bacf5e4 ("perf python: Port sctop to perf module")
> Assisted-by: Antigravity:gemini-3.1-pro
> Signed-off-by: Ian Rogers <irogers@google.com>

Sashiko has reviewed this patch and found no issues. It looks great!

-- 
Sashiko AI review · https://sashiko.dev/#/patchset/20260929062937.374137-1-irogers@google.com?part=2


  reply	other threads:[~2026-09-29  6:37 UTC|newest]

Thread overview: 58+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-09-29  2:19 [PATCH v1 0/9] perf python: Follow-up fixes and shell test deflaking Ian Rogers
2026-09-29  2:19 ` [PATCH v1 1/9] perf evsel: Clamp sample_id size for ksymbol, bpf, and text_poke events Ian Rogers
2026-09-29  2:38   ` sashiko-bot
2026-09-29  2:19 ` [PATCH v1 2/9] perf python sctop: Fix offline interval printing and test flakiness Ian Rogers
2026-09-29  2:30   ` sashiko-bot
2026-09-29  2:19 ` [PATCH v1 3/9] perf python stat-cpi: Fix live mode signal races " Ian Rogers
2026-09-29  2:25   ` sashiko-bot
2026-09-29  2:19 ` [PATCH v1 4/9] perf test: Deflake Intel PT Python shell tests under load Ian Rogers
2026-09-29  2:24   ` sashiko-bot
2026-09-29  2:19 ` [PATCH v1 5/9] perf test: Deflake failed-syscalls " Ian Rogers
2026-09-29  2:25   ` sashiko-bot
2026-09-29  2:19 ` [PATCH v1 6/9] perf test: Reduce overhead and contention in Python shell tests Ian Rogers
2026-09-29  2:26   ` sashiko-bot
2026-09-29  2:19 ` [PATCH v1 7/9] perf python event_analyzing_sample: Default to in-memory SQLite database Ian Rogers
2026-09-29  2:24   ` sashiko-bot
2026-09-29  2:19 ` [PATCH v1 8/9] perf python: Initialize debug output on module load Ian Rogers
2026-09-29  2:24   ` sashiko-bot
2026-09-29  2:19 ` [PATCH v1 9/9] perf pmu: Fix race with concurrent tracepoint creation and removal in perf list Ian Rogers
2026-09-29  2:27   ` sashiko-bot
2026-09-29  6:29 ` [PATCH v2 0/9] perf python: Follow-up fixes and shell test deflaking Ian Rogers
2026-09-29  6:29   ` [PATCH v2 1/9] perf evsel: Clamp sample_id size for ksymbol, bpf, and text_poke events Ian Rogers
2026-09-29  6:41     ` sashiko-bot
2026-09-29  6:29   ` [PATCH v2 2/9] perf python sctop: Fix offline interval printing and test flakiness Ian Rogers
2026-09-29  6:37     ` sashiko-bot [this message]
2026-09-29  6:29   ` [PATCH v2 3/9] perf python stat-cpi: Fix live mode signal races " Ian Rogers
2026-09-29  6:37     ` sashiko-bot
2026-09-29  6:29   ` [PATCH v2 4/9] perf test: Deflake Intel PT Python shell tests under load Ian Rogers
2026-09-29  6:35     ` sashiko-bot
2026-09-29  6:29   ` [PATCH v2 5/9] perf test: Deflake failed-syscalls " Ian Rogers
2026-09-29  6:34     ` sashiko-bot
2026-09-29  6:29   ` [PATCH v2 6/9] perf test: Reduce overhead and contention in Python shell tests Ian Rogers
2026-09-29  6:35     ` sashiko-bot
2026-09-29  6:29   ` [PATCH v2 7/9] perf python event_analyzing_sample: Default to in-memory SQLite database Ian Rogers
2026-09-29  6:37     ` sashiko-bot
2026-09-29  6:29   ` [PATCH v2 8/9] perf python: Initialize debug output on module load Ian Rogers
2026-09-29  6:37     ` sashiko-bot
2026-09-29  6:29   ` [PATCH v2 9/9] perf pmu: Fix race with concurrent tracepoint creation and removal in perf list Ian Rogers
2026-09-29  6:38     ` sashiko-bot
2026-09-29  6:58   ` [PATCH v3 0/9] perf python: Follow-up fixes and shell test deflaking Ian Rogers
2026-09-29  6:58     ` [PATCH v3 1/9] perf evsel: Clamp sample_id size for ksymbol, bpf, and text_poke events Ian Rogers
2026-09-29  7:08       ` sashiko-bot
2026-09-29  6:58     ` [PATCH v3 2/9] perf python sctop: Fix offline interval printing and test flakiness Ian Rogers
2026-09-29  7:06       ` sashiko-bot
2026-09-29  6:58     ` [PATCH v3 3/9] perf python stat-cpi: Fix live mode signal races " Ian Rogers
2026-09-29  7:04       ` sashiko-bot
2026-09-29  6:58     ` [PATCH v3 4/9] perf test: Deflake Intel PT Python shell tests under load Ian Rogers
2026-09-29  7:03       ` sashiko-bot
2026-09-29  6:58     ` [PATCH v3 5/9] perf test: Deflake failed-syscalls " Ian Rogers
2026-09-29  7:04       ` sashiko-bot
2026-09-29  6:58     ` [PATCH v3 6/9] perf test: Reduce overhead and contention in Python shell tests Ian Rogers
2026-09-29  7:04       ` sashiko-bot
2026-09-29  6:58     ` [PATCH v3 7/9] perf python event_analyzing_sample: Default to in-memory SQLite database Ian Rogers
2026-09-29  7:05       ` sashiko-bot
2026-09-29  6:58     ` [PATCH v3 8/9] perf python: Initialize debug output on module load Ian Rogers
2026-09-29  7:04       ` sashiko-bot
2026-09-29  6:58     ` [PATCH v3 9/9] perf pmu: Fix race with concurrent tracepoint creation and removal in perf list Ian Rogers
2026-09-29  7:06       ` sashiko-bot
2026-09-29 18:44     ` [PATCH v3 0/9] perf python: Follow-up fixes and shell test deflaking Arnaldo Carvalho de Melo

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