linux-kernel - Re: [PATCH 1/9] perf, tools, stat: Abstract stat metrics printing

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Date:	Fri, 22 Jan 2016 10:41:32 +0100
From:	Jiri Olsa <jolsa@...hat.com>
To:	Andi Kleen <andi@...stfloor.org>
Cc:	acme@...nel.org, jolsa@...nel.org, mingo@...nel.org,
	linux-kernel@...r.kernel.org, eranian@...gle.com,
	Andi Kleen <ak@...ux.intel.com>
Subject: Re: [PATCH 1/9] perf, tools, stat: Abstract stat metrics printing

On Tue, Jan 19, 2016 at 06:26:44PM -0800, Andi Kleen wrote:
> From: Andi Kleen <ak@...ux.intel.com>
> 
> Abstract the printing of shadow metrics. Instead of every
> metric calling fprintf directly and taking care of indentation,
> use two call backs: one to print metrics and another to
> start a new line.
> 
> This will allow adding metrics to CSV mode and also
> using them for other purposes.
> 
> The computation of padding is now done in the central
> callback, instead of every metric doing it manually.
> This makes it easier to add new metrics.
> 
> v2: Refactor functions, printout now does more. Move
> shadow printing. Improve fallback callbacks. Don't
> use void * callback data.
> v3: Remove unnecessary hunk. Add typedef for new_line
> v4: Remove unnecessary hunk. Don't print metrics for CSV/interval
> mode yet.  Move printout change to separate patch.
> v5: Fix bisect bugs. Avoid bogus frontend cycles printing.
> Fix indentation in different aggregation modes.
> v6: Delay newline handling
> Signed-off-by: Andi Kleen <ak@...ux.intel.com>

Acked-by: Jiri Olsa <jolsa@...nel.org>

thanks,
jirka