From: sashiko-bot@kernel.org
To: "Arnaldo Carvalho de Melo" <acme@kernel.org>
Cc: linux-perf-users@vger.kernel.org
Subject: Re: [PATCH 7/8] perf annotate-data: Resolve type DIEs in the debug file they came from
Date: Mon, 14 Sep 2026 01:46:01 +0000 [thread overview]
Message-ID: <20260914014601.9A2E61F000FF@smtp.kernel.org> (raw)
In-Reply-To: <20260914013604.7702-8-acme@kernel.org>
> From: Arnaldo Carvalho de Melo <acme@redhat.com>
>
> A 'perf report -s type' on a 783 MB AMD IBS data type profiling session
> hangs, burning all of a CPU and producing no output:
>
> ⬢ [acme@toolbx perf-tools-next]$ perf report --progress -s type -i perf.data.ibs > /dev/null
> Processing events... [100.0%] 746M / 746M
> Merging related events... [ 58.0%] 293828 / 506686
> Merging related events... [ 59.0%] 298894 / 506686
> Merging related events... [ 60.0%] 303960 / 506686
> Merging related events... [ 61.0%] 309026 / 506686
> [ ... nothing else, ever ... ]
>
> It is a spin and not a slow path: with perf-stuck the CPU time used
> grows by a whole interval on every sample, while the [stack] mapping,
> [ ... ]
>
> Fixes: 06b2ce75386df04b ("perf annotate-data: Maintain variable type info")
> Fixes: 55ee3d005d62279d ("perf annotate-data: Add a cache for global variable types")
> Assisted-by: LLM
> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Sashiko has reviewed this patch and found no issues. It looks great!
--
Sashiko AI review · https://sashiko.dev/#/patchset/20260914013604.7702-1-acme@kernel.org?part=7
next prev parent reply other threads:[~2026-09-14 1:46 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-14 1:35 [PATCH v4 0/8] perf tools: Annotate fixes, stdio progress indication, debuginfo-client in more places Arnaldo Carvalho de Melo
2026-09-14 1:35 ` [PATCH 1/8] perf test: Skip data_type_profiling when the PMU cannot record memory events Arnaldo Carvalho de Melo
2026-09-14 1:41 ` sashiko-bot
2026-09-14 1:35 ` [PATCH 2/8] perf debuginfo: Fetch debuginfo keyed by build ID using debuginfod Arnaldo Carvalho de Melo
2026-09-14 1:50 ` sashiko-bot
2026-09-14 1:35 ` [PATCH 3/8] perf symbol: Fall back to fetching the vmlinux by build ID Arnaldo Carvalho de Melo
2026-09-14 1:44 ` sashiko-bot
2026-09-14 1:35 ` [PATCH 4/8] perf annotate-data: Show the sample count in the data-type browser Arnaldo Carvalho de Melo
2026-09-14 1:42 ` sashiko-bot
2026-09-14 1:36 ` [PATCH 5/8] perf report: Add --progress option Arnaldo Carvalho de Melo
2026-09-14 1:46 ` sashiko-bot
2026-09-14 1:36 ` [PATCH 6/8] perf scripts: Add perf-stuck, to tell where a running perf is stuck Arnaldo Carvalho de Melo
2026-09-14 1:44 ` sashiko-bot
2026-09-14 1:36 ` [PATCH 7/8] perf annotate-data: Resolve type DIEs in the debug file they came from Arnaldo Carvalho de Melo
2026-09-14 1:46 ` sashiko-bot [this message]
2026-09-14 1:36 ` [PATCH 8/8] perf mem record: Request PERF_SAMPLE_CPU by default Arnaldo Carvalho de Melo
2026-09-14 1:52 ` sashiko-bot
-- strict thread matches above, loose matches on Subject: below --
2026-09-13 22:28 [PATCH v3 0/8] perf tools: Annotate fixes, stdio progress indication, debuginfo-client in more places Arnaldo Carvalho de Melo
2026-09-13 22:28 ` [PATCH 7/8] perf annotate-data: Resolve type DIEs in the debug file they came from Arnaldo Carvalho de Melo
2026-09-13 22:37 ` sashiko-bot
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