linux-kernel - Re: [PATCH] perf vendor events arm64: Fix incorrect CPU

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Message-Id: <174007597343.1790567.6925222970795406098.b4-ty@kernel.org>
Date: Thu, 20 Feb 2025 10:26:13 -0800
From: Namhyung Kim <namhyung@...nel.org>
To: linux-perf-users@...r.kernel.org, james.clark@...aro.org, 
 irogers@...gle.com, Yangyu Chen <cyy@...self.name>
Cc: acme@...nel.org, adrian.hunter@...el.com, 
 alexander.shishkin@...ux.intel.com, fj3333bs@...jp.fujitsu.com, 
 fj5100bi@...itsu.com, john.g.garry@...cle.com, jolsa@...nel.org, 
 kan.liang@...ux.intel.com, leo.yan@...ux.dev, 
 linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org, 
 mark.rutland@....com, mike.leach@...aro.org, mingo@...hat.com, 
 peterz@...radead.org, will@...nel.org
Subject: Re: [PATCH] perf vendor events arm64: Fix incorrect CPU_CYCLE in
 metrics expr

On Thu, 13 Feb 2025 16:44:09 +0800, Yangyu Chen wrote:
> Some existing metrics for Neoverse N3 and V3 expressions use CPU_CYCLE
> to represent the number of cycles, but this is incorrect. The correct
> event to use is CPU_CYCLES.
> 
> I encountered this issue while working on a patch to add pmu events for
> Cortex A720 and A520 by reusing the existing patch for Neoverse N3 and
> V3 by James Clark [1] and my check script [2] reported this issue.
> 
> [...]
Applied to perf-tools-next, thanks!

Best regards,
Namhyung