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From: Jiri Olsa <jolsa@redhat.com>
To: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>, Namhyung Kim <namhyung@kernel.org>,
	lkml <linux-kernel@vger.kernel.org>,
	Peter Zijlstra <a.p.zijlstra@chello.nl>,
	Ingo Molnar <mingo@kernel.org>,
	Mark Rutland <mark.rutland@arm.com>,
	Alexander Shishkin <alexander.shishkin@linux.intel.com>,
	Michael Petlan <mpetlan@redhat.com>,
	Ian Rogers <irogers@google.com>,
	Stephane Eranian <eranian@google.com>,
	Alexei Budankov <abudankov@huawei.com>
Subject: Re: [PATCH 2/3] perf tools: Allow to enable/disable events via control file
Date: Tue, 15 Dec 2020 16:24:20 +0100	[thread overview]
Message-ID: <20201215152420.GC658008@krava> (raw)
In-Reply-To: <20201215151413.GE252952@kernel.org>

On Tue, Dec 15, 2020 at 12:14:13PM -0300, Arnaldo Carvalho de Melo wrote:
> Em Thu, Dec 10, 2020 at 09:43:29PM +0100, Jiri Olsa escreveu:
> > Adding new control events to enable/disable specific event.
> > The interface string for control file are:
> > 
> >   'enable-<EVENT NAME>'
> >   'disable-<EVENT NAME>'
> 
> Wwy do we have "enable-" as the "tag" for this?

the whole 'enable-' is prefix for command that enables specific event
following '-' starts the event name

> 
> Also is it possible to use "enable sched:*" and have that match what is
> in the evlist and enable (or disable, if using "disable sched:*") what
> matches?

yep, that should be possible to add

> 
> This second suggestion can be done on top of this, i.e. as an
> enhancement, but mixing up the command (enable, disable) with its
> arguments looks strange.

the '-' determines that there's event name following,
pure 'enable' switches on everything

jirka


  reply	other threads:[~2020-12-15 15:26 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-12-10 20:43 [PATCHv2 0/3] perf tools: Allow to enable/disable events via control pipe Jiri Olsa
2020-12-10 20:43 ` [PATCH 1/3] perf tools: Add evlist__disable_evsel/evlist__enable_evsel Jiri Olsa
2020-12-15 15:17   ` Arnaldo Carvalho de Melo
2020-12-10 20:43 ` [PATCH 2/3] perf tools: Allow to enable/disable events via control file Jiri Olsa
2020-12-15 15:14   ` Arnaldo Carvalho de Melo
2020-12-15 15:24     ` Jiri Olsa [this message]
2020-12-15 16:03       ` Arnaldo Carvalho de Melo
2020-12-15 16:18         ` Jiri Olsa
2020-12-15 16:27           ` Arnaldo Carvalho de Melo
2020-12-10 20:43 ` [PATCH 3/3] perf tools: Add evlist/evlist-verbose control commands Jiri Olsa
2020-12-11  3:27   ` Namhyung Kim
2020-12-15 15:23   ` Arnaldo Carvalho de Melo
2020-12-15 15:59     ` Jiri Olsa
2020-12-15 16:09       ` Arnaldo Carvalho de Melo
2020-12-15 16:27         ` Jiri Olsa
  -- strict thread matches above, loose matches on Subject: below --
2020-12-06 17:05 [PATCH 0/3] perf tools: Allow to enable/disable events via control pipe Jiri Olsa
2020-12-06 17:05 ` [PATCH 2/3] perf tools: Allow to enable/disable events via control file Jiri Olsa
2020-12-07 17:02   ` Alexei Budankov
2020-12-10 16:24     ` Jiri Olsa
2020-12-10 17:15       ` Arnaldo Carvalho de Melo
2020-12-10 17:19         ` Arnaldo Carvalho de Melo
2020-12-10 18:06       ` Jiri Olsa
2020-12-10 18:20         ` Alexei Budankov
2020-12-10 18:27           ` Arnaldo Carvalho de Melo
2020-12-10 18:32           ` Alexei Budankov

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