From: Hagen Paul Pfeifer <hagen@jauu.net>
To: Andi Kleen <ak@linux.intel.com>
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 10:14:14 +0100 [thread overview]
Message-ID: <20200205091414.GB495987@virgo> (raw)
In-Reply-To: <20200204231628.GF302770@tassilo.jf.intel.com>
* Andi Kleen | 2020-02-04 15:16:28 [-0800]:
>> $ perf script --deltatime
>
>It's already implemented as --reltime
Nope ;-)
$ perf script --ns --reltime
sleep 49148 [000] 0.000000000: probe_libc:sbrk: (7f279d9144f0)
sleep 49148 [000] 0.000009153: probe_libc:sbrk: (7f279d9144f0)
sh 49151 [002] 0.099454082: probe_libc:sbrk: (7f9f1c6374f0)
sh 49151 [002] 0.099468538: probe_libc:sbrk: (7f9f1c6374f0)
curl 49153 [003] 0.114459574: probe_libc:sbrk: (7f9bb2dfb4f0)
curl 49153 [003] 0.114474449: probe_libc:sbrk: (7f9bb2dfb4f0)
[...]
$ perf script --ns --deltatime
sleep 49148 [000] 0.000000000: probe_libc:sbrk: (7f279d9144f0)
sleep 49148 [000] 0.000009153: probe_libc:sbrk: (7f279d9144f0)
sh 49151 [002] 0.099444929: probe_libc:sbrk: (7f9f1c6374f0)
sh 49151 [002] 0.000014456: probe_libc:sbrk: (7f9f1c6374f0)
curl 49153 [003] 0.014991036: probe_libc:sbrk: (7f9bb2dfb4f0)
curl 49153 [003] 0.000014875: probe_libc:sbrk: (7f9bb2dfb4f0)
[...]
reltime is relative to the *first event* in the record - deltatime is relative
to the *previous* event.
Hagen
next prev parent reply other threads:[~2020-02-05 9:14 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-02-04 17:37 [PATCH] perf script: introduce deltatime option Hagen Paul Pfeifer
2020-02-04 23:16 ` Andi Kleen
2020-02-05 9:14 ` Hagen Paul Pfeifer [this message]
2020-02-05 17:22 ` Andi Kleen
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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