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From: sashiko-bot@kernel.org
To: "Alireza Haghdoost" <haghdoost@uber.com>
Cc: linux-perf-users@vger.kernel.org
Subject: Re: [PATCH v3 6/6] perf test: Test lazy symbol loading and symbol memory limits
Date: Fri, 25 Sep 2026 19:26:39 +0000	[thread overview]
Message-ID: <20260925192640.498D91F000FF@smtp.kernel.org> (raw)
In-Reply-To: <20260925-perf-symbol-memory-send-v3-6-3e4e234c363b@uber.com>

> From: Alireza Haghdoost <haghdoost@uber.com>
> 
> Add a perf script shell test for --lazy-load-symbols and
> --max-symbol-bytes.
> 
> Record a small callchain fixture, require evidence that the controlled
> perf DSO built an on-demand index, and compare only extracted occurrences
> of the controlled test_loop symbol. This avoids coupling the test to
> addresses, diagnostics, or architecture-specific symbols for which the
> eager and lazy loaders have documented differences.
> 
> Derive the constrained lazy budget from the unlimited run's
> index-reservation peak. This gives a deterministic boundary where the
> index fits and later materialization reaches the limit. Also verify eager
> limiting, malformed size rejection, and one-time warning behavior.
> [ ... ]
> function section is NOBITS in the debug file and has no PT_LOAD in the
> runtime file, so both loaders must fall back to the runtime section
> header.
> 
> Signed-off-by: Alireza Haghdoost <haghdoost@uber.com>

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

-- 
Sashiko AI review · https://sashiko.dev/#/patchset/20260925-perf-symbol-memory-send-v3-0-3e4e234c363b@uber.com?part=6


  reply	other threads:[~2026-09-25 19:26 UTC|newest]

Thread overview: 28+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-09-25 19:09 [PATCH v3 0/6] perf script: Bounded and lazy symbol loading Alireza Haghdoost
2026-09-25 19:09 ` Alireza Haghdoost via B4 Relay
2026-09-25 19:09 ` [PATCH v3 1/6] perf symbols: Fix broken ELF_C_READ_MMAP fallback guard Alireza Haghdoost
2026-09-25 19:09   ` Alireza Haghdoost via B4 Relay
2026-09-25 19:21   ` sashiko-bot
2026-09-25 19:09 ` [PATCH v3 2/6] perf dso: Allow reading DSO data from an explicit file Alireza Haghdoost
2026-09-25 19:09   ` Alireza Haghdoost via B4 Relay
2026-09-25 19:26   ` sashiko-bot
2026-09-25 19:09 ` [PATCH v3 3/6] perf symbols: Factor out duplicate symbol selection Alireza Haghdoost
2026-09-25 19:09   ` Alireza Haghdoost via B4 Relay
2026-09-25 19:21   ` sashiko-bot
2026-09-25 19:40   ` Ian Rogers
2026-09-25 19:55     ` Alireza Haghdoost
2026-09-25 20:21       ` Ian Rogers
2026-09-25 19:09 ` [PATCH v3 4/6] perf script: Add --max-symbol-bytes to bound ELF symbol memory Alireza Haghdoost
2026-09-25 19:09   ` Alireza Haghdoost via B4 Relay
2026-09-25 19:26   ` sashiko-bot
2026-09-25 19:09 ` [PATCH v3 5/6] perf script: Add --lazy-load-symbols for lazy symbol loading Alireza Haghdoost
2026-09-25 19:09   ` Alireza Haghdoost via B4 Relay
2026-09-25 19:27   ` sashiko-bot
2026-09-25 19:09 ` [PATCH v3 6/6] perf test: Test lazy symbol loading and symbol memory limits Alireza Haghdoost
2026-09-25 19:09   ` Alireza Haghdoost via B4 Relay
2026-09-25 19:26   ` sashiko-bot [this message]
2026-09-25 20:20 ` [PATCH v3 0/6] perf script: Bounded and lazy symbol loading Ian Rogers
2026-09-25 21:28   ` Alireza Haghdoost
2026-09-25 21:55     ` Ian Rogers
2026-09-30 19:58       ` Alireza Haghdoost
2026-09-30 21:18         ` Ian Rogers

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