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From: Andi Kleen <ak@linux.intel.com>
To: Hagen Paul Pfeifer <hagen@jauu.net>
Cc: linux-kernel@vger.kernel.org,
	Adrian Hunter <adrian.hunter@intel.com>,
	Jiri Olsa <jolsa@kernel.org>,
	Arnaldo Carvalho de Melo <acme@kernel.org>
Subject: Re: [PATCH] perf script: introduce deltatime option
Date: Wed, 5 Feb 2020 09:22:15 -0800	[thread overview]
Message-ID: <20200205172215.GG302770@tassilo.jf.intel.com> (raw)
In-Reply-To: <20200205091414.GB495987@virgo>

> reltime is relative to the *first event* in the record - deltatime is relative
> to the *previous* event.

Ah ok.

I think it's useful, but you should rather implement it as a new field instead
of as an option. There might be use cases where you want both.

delta time is easier for reading, but absolute time is often important 
to find something in a trace.

-Andi

  reply	other threads:[~2020-02-05 17:22 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-02-04 17:37 Hagen Paul Pfeifer
2020-02-04 23:16 ` Andi Kleen
2020-02-05  9:14   ` Hagen Paul Pfeifer
2020-02-05 17:22     ` Andi Kleen [this message]
2020-03-26 14:33 ` Arnaldo Carvalho de Melo
2020-04-04  8:41 ` [tip: perf/urgent] perf script: Introduce --deltatime option tip-bot2 for Hagen Paul Pfeifer

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