From: David Ahern <dsahern@gmail.com>
To: Arnaldo Carvalho de Melo <arnaldo.melo@gmail.com>,
David Ahern <dsa@cumulusnetworks.com>
Cc: mingo@kernel.org, peterz@infradead.org, namhyung@kernel.org,
jolsa@kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH v2 4/6] perf sched timehist: Add option to specify time window of interest
Date: Tue, 29 Nov 2016 11:58:03 -0700 [thread overview]
Message-ID: <d8cfb036-90a7-576e-86a1-c0144339418d@gmail.com> (raw)
In-Reply-To: <20161129185635.GC23423@kernel.org>
On 11/29/16 11:56 AM, Arnaldo Carvalho de Melo wrote:
> Em Tue, Nov 29, 2016 at 10:15:44AM -0700, David Ahern escreveu:
>> Add option to allow user to control analysis window. e.g., collect data
>> for time window and analyze a segment of interest within that window.
> Trying to test this I got:
>
> [root@jouet ~]# perf sched timehist
> No trace sample to read. Did you call 'perf record -R'?
> [root@jouet ~]#
>
> Could you please provide a better error message?
sure, but that error is unrelated to this patch set.
>
> The perf.data file had this:
>
> [root@jouet ~]# perf evlist -v
> cycles:ppp: size: 112, { sample_period, sample_freq }: 4000, sample_type: IP|TID|TIME|CALLCHAIN|CPU|PERIOD, disabled: 1, inherit: 1, mmap: 1, comm: 1, freq: 1, task: 1, precise_ip: 3, sample_id_all: 1, exclude_guest: 1, mmap2: 1, comm_exec: 1
> [root@jouet ~]#
next prev parent reply other threads:[~2016-11-29 18:58 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-11-29 17:15 [PATCH v2 0/6] perf: " David Ahern
2016-11-29 17:15 ` [PATCH v2 1/6] perf tool: Add time-based utility functions David Ahern
2016-12-02 10:41 ` [tip:perf/core] perf tools: " tip-bot for David Ahern
2016-11-29 17:15 ` [PATCH v2 2/6] perf tool: Move parse_nsec_time to time-utils.c David Ahern
2016-12-02 10:41 ` [tip:perf/core] perf tools: " tip-bot for David Ahern
2016-11-29 17:15 ` [PATCH v2 3/6] perf script: Add option to specify time window of interest David Ahern
2016-12-02 10:42 ` [tip:perf/core] " tip-bot for David Ahern
2016-11-29 17:15 ` [PATCH v2 4/6] perf sched timehist: " David Ahern
2016-11-29 18:56 ` Arnaldo Carvalho de Melo
2016-11-29 18:58 ` David Ahern [this message]
2016-11-29 19:21 ` Arnaldo Carvalho de Melo
2016-12-02 10:42 ` [tip:perf/core] " tip-bot for David Ahern
2016-11-29 17:15 ` [PATCH v2 5/6] perf kmem: " David Ahern
2016-12-02 10:43 ` [tip:perf/core] " tip-bot for David Ahern
2016-11-29 17:15 ` [PATCH v2 6/6] perf report: " David Ahern
2016-12-02 10:43 ` [tip:perf/core] " tip-bot for David Ahern
2016-11-29 19:15 ` [PATCH v2 0/6] perf: " Arnaldo Carvalho de Melo
2016-11-30 5:26 ` Namhyung Kim
2016-11-30 14:23 ` Arnaldo Carvalho de Melo
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