linux-kernel - Re: [PATCH v2 2/3] perf tools: Record sampling time for each entry

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Date:	Tue, 03 Dec 2013 09:20:23 -0700
From:	David Ahern <dsahern@...il.com>
To:	Namhyung Kim <namhyung@...nel.org>,
	Arnaldo Carvalho de Melo <acme@...stprotocols.net>
CC:	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Paul Mackerras <paulus@...ba.org>,
	Ingo Molnar <mingo@...nel.org>,
	Namhyung Kim <namhyung.kim@....com>,
	LKML <linux-kernel@...r.kernel.org>,
	Jiri Olsa <jolsa@...hat.com>,
	Stephane Eranian <eranian@...gle.com>,
	Andi Kleen <andi@...stfloor.org>,
	Pekka Enberg <penberg@...nel.org>,
	Frederic Weisbecker <fweisbec@...il.com>
Subject: Re: [PATCH v2 2/3] perf tools: Record sampling time for each entry

On 12/3/13, 2:00 AM, Namhyung Kim wrote:
> diff --git a/tools/perf/util/evsel.h b/tools/perf/util/evsel.h
> index 20a7c653b74b..ac65fc67972c 100644
> --- a/tools/perf/util/evsel.h
> +++ b/tools/perf/util/evsel.h
> @@ -69,6 +69,7 @@ struct perf_evsel {
>   	struct hists		hists;
>   	u64			first_timestamp;
>   	u64			last_timestamp;
> +	u64			*prev_timestamps;


Why plural and why dynamically allocated? The allocation only does a 
single u64, not an array.

David
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