linux-kernel - RE: [PATCH 1/2] Read perf data file header from the file user specified with -i option for perf script flamegraph

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Message-ID: <MW4PR11MB82898AB65A5CD31B3698D1DF957BA@MW4PR11MB8289.namprd11.prod.outlook.com>
Date: Wed, 25 Jun 2025 15:24:41 +0000
From: "Li, Tianyou" <tianyou.li@...el.com>
To: Namhyung Kim <namhyung@...nel.org>, Peter Zijlstra <peterz@...radead.org>,
	Ingo Molnar <mingo@...hat.com>, Arnaldo Carvalho de Melo <acme@...nel.org>
CC: Mark Rutland <mark.rutland@....com>, Alexander Shishkin
	<alexander.shishkin@...ux.intel.com>, Jiri Olsa <jolsa@...nel.org>, "Ian
 Rogers" <irogers@...gle.com>, "Hunter, Adrian" <adrian.hunter@...el.com>, Kan
 Liang <kan.liang@...ux.intel.com>, "Guo, Wangyang" <wangyang.guo@...el.com>,
	"linux-perf-users@...r.kernel.org" <linux-perf-users@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: RE: [PATCH 1/2] Read perf data file header from the file user
 specified with -i option for perf script flamegraph

Appreciated for your kindly review. Thanks.

-----Original Message-----
From: Namhyung Kim <namhyung@...nel.org> 
Sent: Wednesday, June 25, 2025 1:53 AM
To: Peter Zijlstra <peterz@...radead.org>; Ingo Molnar <mingo@...hat.com>; Arnaldo Carvalho de Melo <acme@...nel.org>; Li, Tianyou <tianyou.li@...el.com>
Cc: Mark Rutland <mark.rutland@....com>; Alexander Shishkin <alexander.shishkin@...ux.intel.com>; Jiri Olsa <jolsa@...nel.org>; Ian Rogers <irogers@...gle.com>; Hunter, Adrian <adrian.hunter@...el.com>; Kan Liang <kan.liang@...ux.intel.com>; Guo, Wangyang <wangyang.guo@...el.com>; linux-perf-users@...r.kernel.org; linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/2] Read perf data file header from the file user specified with -i option for perf script flamegraph

On Tue, 10 Jun 2025 12:04:22 +0800, Tianyou Li wrote:
> If specify the perf data file with -i option, the script will try to 
> read the header information regardless of the file name specified, 
> instead it will try to access the perf.data. This simple patch use the file name from -i option for command perf report --header-only to read the header.
> 
> 
Applied to perf-tools-next, thanks!

Best regards,
Namhyung