linux-kernel - Re: [PATCH RFC 04/10] perf: Introduce deferred user callchains

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Message-ID: <20240913152621.GW4723@noisy.programming.kicks-ass.net>
Date: Fri, 13 Sep 2024 17:26:21 +0200
From: Peter Zijlstra <peterz@...radead.org>
To: Josh Poimboeuf <jpoimboe@...nel.org>
Cc: Namhyung Kim <namhyung@...nel.org>,
	Steven Rostedt <rostedt@...dmis.org>,
	Ingo Molnar <mingo@...nel.org>,
	Arnaldo Carvalho de Melo <acme@...nel.org>,
	linux-kernel@...r.kernel.org, x86@...nel.org,
	Indu Bhagat <indu.bhagat@...cle.com>,
	Mark Rutland <mark.rutland@....com>,
	Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
	Jiri Olsa <jolsa@...nel.org>, Ian Rogers <irogers@...gle.com>,
	Adrian Hunter <adrian.hunter@...el.com>,
	linux-perf-users@...r.kernel.org, Mark Brown <broonie@...nel.org>,
	linux-toolchains@...r.kernel.org
Subject: Re: [PATCH RFC 04/10] perf: Introduce deferred user callchains

On Fri, Sep 13, 2024 at 07:47:14AM -0700, Josh Poimboeuf wrote:

> Or if it would instead make sense to combine all the deferred user
> options into a single variable length PERF_RECORD_USER_DEFERRED event
> type?

This, have all those samples refer to the same future user callchain.