linux-kernel - Re: [PATCH] ftrace: Add vim script to enable folding for function

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Date:	Thu, 6 Aug 2009 20:04:38 -0400 (EDT)
From:	Steven Rostedt <rostedt@...dmis.org>
To:	Josh Triplett <josh@...htriplett.org>
cc:	linux-kernel@...r.kernel.org, Ingo Molnar <mingo@...e.hu>
Subject: Re: [PATCH] ftrace: Add vim script to enable folding for function_graph
 traces



On Thu, 6 Aug 2009, Josh Triplett wrote:

> function_graph traces look like nested function calls, complete with
> braces denoting the start and end of functions.  function-graph-fold.vim
> teaches vim how to fold these functions, to make it more convenient to
> browse them.
> 
> To use, :source function-graph-fold.vim while viewing a function_graph
> trace, or use "view -S function-graph-fold.vim some-trace" to load it
> from the command-line together with a trace.  You can then use the usual
> vim fold commands, such as "za", to open and close nested functions.
> While closed, a fold will show the total time taken for a call, as would
> normally appear on the line with the closing brace.  Folded functions
> will not include finish_task_switch(), so folding should remain
> relatively sane even through a context switch.
> 
> Note that this will almost certainly only work well with a single-CPU
> trace (e.g. trace-cmd report --cpu 1).  It also takes some time to run
> (a few seconds for a large trace on my laptop).  Nevertheless, I found
> it very handy to get an overview of a trace and then drill down on
> problematic calls.
> 
> Signed-off-by: Josh Triplett <josh@...htriplett.org>

Thanks Josh,

I queued it up for 32.

-- Steve
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