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From: sashiko-bot@kernel.org
To: "Arnaldo Carvalho de Melo" <acme@kernel.org>
Cc: linux-perf-users@vger.kernel.org
Subject: Re: [PATCH 10/12] perf annotate-data: Resolve type DIEs in the debug file they came from
Date: Wed, 16 Sep 2026 18:44:54 +0000	[thread overview]
Message-ID: <20260916184454.DF0201F00893@smtp.kernel.org> (raw)
In-Reply-To: <20260916183215.54305-11-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/20260916183215.54305-1-acme@kernel.org?part=10


  reply	other threads:[~2026-09-16 18:44 UTC|newest]

Thread overview: 29+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-09-16 18:32 [PATCH v6 0/12] perf tools: Annotate fixes, stdio progress indication, debuginfo-client in more places Arnaldo Carvalho de Melo
2026-09-16 18:32 ` [PATCH 01/12] perf test: Skip data_type_profiling when the PMU cannot record memory events Arnaldo Carvalho de Melo
2026-09-16 18:38   ` sashiko-bot
2026-09-16 18:32 ` [PATCH 02/12] perf debuginfo: Fetch debuginfo keyed by build ID using debuginfod Arnaldo Carvalho de Melo
2026-09-16 18:40   ` sashiko-bot
2026-09-16 18:32 ` [PATCH 03/12] perf config: Move perf_config__set_variable() to util/config.c Arnaldo Carvalho de Melo
2026-09-16 18:43   ` sashiko-bot
2026-09-16 18:32 ` [PATCH 04/12] perf debuginfo: Let the user skip and disable debuginfod fetches Arnaldo Carvalho de Melo
2026-09-16 18:46   ` sashiko-bot
2026-09-16 18:32 ` [PATCH 05/12] perf debuginfo: Show the debuginfod fetch progress and keys in the TUI Arnaldo Carvalho de Melo
2026-09-16 18:44   ` sashiko-bot
2026-09-16 18:32 ` [PATCH 06/12] perf symbol: Fall back to fetching the vmlinux by build ID Arnaldo Carvalho de Melo
2026-09-16 18:47   ` sashiko-bot
2026-09-16 18:32 ` [PATCH 07/12] perf annotate-data: Show the sample count in the data-type browser Arnaldo Carvalho de Melo
2026-09-16 18:41   ` sashiko-bot
2026-09-16 18:32 ` [PATCH 08/12] perf report: Add --progress option Arnaldo Carvalho de Melo
2026-09-16 18:43   ` sashiko-bot
2026-09-16 18:32 ` [PATCH 09/12] perf scripts: Add perf-stuck, to tell where a running perf is stuck Arnaldo Carvalho de Melo
2026-09-16 18:38   ` sashiko-bot
2026-09-16 18:32 ` [PATCH 10/12] perf annotate-data: Resolve type DIEs in the debug file they came from Arnaldo Carvalho de Melo
2026-09-16 18:44   ` sashiko-bot [this message]
2026-09-16 18:32 ` [PATCH 11/12] perf mem record: Request PERF_SAMPLE_CPU by default Arnaldo Carvalho de Melo
2026-09-16 18:45   ` sashiko-bot
2026-09-16 18:32 ` [PATCH 12/12] perf mem record: Use the IBS swfilt filter when available Arnaldo Carvalho de Melo
2026-09-16 18:43   ` sashiko-bot
  -- strict thread matches above, loose matches on Subject: below --
2026-09-16 11:47 [PATCH v6 0/12] perf tools: Annotate fixes, stdio progress indication, debuginfo-client in more places Arnaldo Carvalho de Melo
2026-09-16 11:47 ` [PATCH 10/12] perf annotate-data: Resolve type DIEs in the debug file they came from Arnaldo Carvalho de Melo
2026-09-16 12:01   ` sashiko-bot
2026-09-16 21:44   ` Namhyung Kim
2026-09-17 14:07     ` Arnaldo Carvalho de Melo

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