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From: Jiri Olsa <jolsa@redhat.com>
To: Namhyung Kim <namhyung@kernel.org>
Cc: Alexei Budankov <abudankov@huawei.com>,
	Jiri Olsa <jolsa@kernel.org>,
	Arnaldo Carvalho de Melo <acme@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>
Subject: Re: [PATCH 4/8] perf daemon: Add daemon command
Date: Fri, 18 Dec 2020 20:30:46 +0100	[thread overview]
Message-ID: <20201218193046.GD105234@krava> (raw)
In-Reply-To: <CAM9d7ciuss-iD68etX9mo=gjO7_Wh+Ve81=35BDx6hL=oWK_4Q@mail.gmail.com>

On Fri, Dec 18, 2020 at 10:25:06PM +0900, Namhyung Kim wrote:

SNIP

> >
> > so the current way is, that following creates daemon:
> >
> >   # perf daemon --config <CONFIG>
> >
> > and any other 'non --config' option' is used to 'query/control' daemon:
> >
> >   # perf daemon
> >   # perf daemon --signal
> >   # perf daemon --stop
> >   ...
> 
> My opinion is that it'd be better having sub-commands for essential
> operations like start, stop.  Also daemons tend to have 'status' or
> 'reload' operations too.
> 
>   # perf daemon start --config ...
>   # perf daemon stop

ok, seems better

> 
> As a system daemon, I agree it should follow the standard location
> for the default base directory and config file.

currently we have this order:

  1. custom perfconfig if specified
  2. system perf config /etc/perfconfig if exists
  3. $HOME/.perfconfig if exists

I think we should keep that, when there's a perf systemd service config
file for this, it can use --config 'whatever'

jirka


  reply	other threads:[~2020-12-18 19:32 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-12-12 10:43 [RFC 0/8] perf tools: Add daemon command Jiri Olsa
2020-12-12 10:43 ` [PATCH 1/8] perf tools: Add debug_set_file function Jiri Olsa
2020-12-15 15:37   ` Arnaldo Carvalho de Melo
2020-12-12 10:43 ` [PATCH 2/8] perf tools: Add debug_set_display_time function Jiri Olsa
2020-12-15 15:37   ` Arnaldo Carvalho de Melo
2020-12-12 10:43 ` [PATCH 3/8] perf tools: Add config set interface Jiri Olsa
2020-12-15 15:41   ` Arnaldo Carvalho de Melo
2020-12-15 19:11     ` Jiri Olsa
2020-12-12 10:43 ` [PATCH 4/8] perf daemon: Add daemon command Jiri Olsa
2020-12-15 15:40   ` Alexei Budankov
2020-12-15 19:43     ` Jiri Olsa
2020-12-16  7:54       ` Alexei Budankov
2020-12-16  8:14         ` Jiri Olsa
2020-12-18 13:25       ` Namhyung Kim
2020-12-18 19:30         ` Jiri Olsa [this message]
2020-12-15 15:44   ` Arnaldo Carvalho de Melo
2020-12-15 19:20     ` Jiri Olsa
2020-12-12 10:43 ` [PATCH 5/8] perf daemon: Add signal command Jiri Olsa
2020-12-15 15:45   ` Arnaldo Carvalho de Melo
2020-12-15 19:14     ` Jiri Olsa
2020-12-12 10:43 ` [PATCH 6/8] perf daemon: Add stop command Jiri Olsa
2020-12-15 15:45   ` Arnaldo Carvalho de Melo
2020-12-12 10:43 ` [PATCH 7/8] perf daemon: Allow only one daemon over base directory Jiri Olsa
2020-12-15 15:46   ` Arnaldo Carvalho de Melo
2020-12-15 19:16     ` Jiri Olsa
2020-12-12 10:43 ` [PATCH 8/8] perf daemon: Set control fifo for session Jiri Olsa
2020-12-15 15:47   ` Arnaldo Carvalho de Melo

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