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From: Andi Kleen <ak@linux.intel.com>
To: Jiri Olsa <jolsa@redhat.com>
Cc: Andi Kleen <andi@firstfloor.org>,
	acme@kernel.org, jolsa@kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 10/10] perf, tools, stat: Output JSON MetricExpr metric
Date: Thu, 9 Feb 2017 09:00:35 -0800	[thread overview]
Message-ID: <20170209170035.GA15301@tassilo.jf.intel.com> (raw)
In-Reply-To: <20170209113937.GA7455@krava>

On Thu, Feb 09, 2017 at 12:39:37PM +0100, Jiri Olsa wrote:
> and this makes me think, that this is not the right approach
> 
> adding extra copy of an event when you want to add new expression?

I don't want to add new expressions.

I don't even need arbitrary expressions, just DividedBy
to get percentages, you just forced me to do the expressions.


> why can't we have another list/file of those expressions

The last time I proposed separate files Ingo vetoed it.
He wanted everything built in.

> from which point we could point and configure events we need

If you want full flexibility you can use your perf stat report
approach, or what most people do is to just run a script/spreadsheet
over the the -x; output. This all continues to work.

This is just a minimum approach to provide some convenience
integrated with the event list to provide something similar
as the built in expressions in stat-shadow. 

It's not trying to build the great perf scripting language.

-Andi

  reply	other threads:[~2017-02-09 17:14 UTC|newest]

Thread overview: 28+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-01-28  2:03 Support Intel uncore event lists Andi Kleen
2017-01-28  2:03 ` [PATCH 01/10] perf, tools: Parse eventcode as number in jevents Andi Kleen
2017-02-10  7:41   ` [tip:perf/core] perf jevents: Parse eventcode as number tip-bot for Andi Kleen
2017-01-28  2:03 ` [PATCH 02/10] perf, tools: Add support for parsing uncore json files Andi Kleen
2017-02-10  7:41   ` [tip:perf/core] perf jevents: " tip-bot for Andi Kleen
2017-01-28  2:03 ` [PATCH 03/10] perf, tools: Support per pmu json aliases Andi Kleen
2017-02-10  7:42   ` [tip:perf/core] perf pmu: " tip-bot for Andi Kleen
2017-01-28  2:03 ` [PATCH 04/10] perf, tools: Support event aliases for non cpu// pmus Andi Kleen
2017-02-10  7:42   ` [tip:perf/core] perf pmu: " tip-bot for Andi Kleen
2017-01-28  2:03 ` [PATCH 05/10] perf, tools: Add debug support for outputing alias string Andi Kleen
2017-02-10  7:43   ` [tip:perf/core] perf list: " tip-bot for Andi Kleen
2017-01-28  2:03 ` [PATCH 06/10] perf, tools: Collapse identically named events in perf stat Andi Kleen
2017-02-08 11:31   ` Jiri Olsa
2017-01-28  2:03 ` [PATCH 07/10] perf, tools: Expand PMU events by prefix match Andi Kleen
2017-02-08 11:30   ` Jiri Olsa
2017-01-28  2:03 ` [PATCH 08/10] perf, tools: Add a simple expression parser for JSON Andi Kleen
2017-02-08 11:31   ` Jiri Olsa
2017-01-28  2:03 ` [PATCH 09/10] perf, tools: Support MetricExpr header in JSON event list Andi Kleen
2017-02-08 11:31   ` Jiri Olsa
2017-01-28  2:03 ` [PATCH 10/10] perf, tools, stat: Output JSON MetricExpr metric Andi Kleen
2017-02-08 11:31   ` Jiri Olsa
2017-02-08 21:51     ` Andi Kleen
2017-02-09 11:39       ` Jiri Olsa
2017-02-09 17:00         ` Andi Kleen [this message]
2017-02-09 18:37           ` Jiri Olsa
2017-02-09 18:59             ` Andi Kleen
2017-02-10  8:22               ` Jiri Olsa
2017-02-09 11:42       ` Jiri Olsa

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