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SubjectRe: [PATCHv6 0/4] tracing: function graph output for preempt/irqs-off tracers
hi,
any feedback?

thanks,
jirka

On Fri, Apr 02, 2010 at 07:01:19PM +0200, Jiri Olsa wrote:
> hi,
>
> updates based on comments by Frederic Weisbecker,
> also rebase to latest master.
>
> I'm sending reworked version of the graph output support for
> preemptirqsoff/preemptoff/irqsoff tracers.
>
> v6:
> - using stubs instead of ifdef in trace_irqsoff for graph
> tracer's calls
>
> v5:
> - function graph events are back in game
> - changed function graph tracer interface to be able to
> pass custom tracer flags
> - changed calls to trace_function to trace graph records
> when the display-graph otion is enabled. As function tracer
> and graph tracer have different spacing during the record
> output, this way it looks better, and the info stays.
>
> This could be also done via TRACE_PRINT, then it'd be displayed
> as comment.. I chose the first way, though it could be easily
> changed.
>
> v4:
> - fixed header to display all the info as for
> current irqsoff tracer
> - fixed reset of the max_tr buffer during the
> display-graph switch
>
> v3:
> - the function_graph tracer should have the same output
> as current version even with events enabled,
> unless I missed something again ;)
> - I gave up the idea of function_graph events,
> since it was unsuitable for outputing other
> events as comments "/* */"
> - I'm not including the raw function_graph for now
>
>
> attached patches:
> - 1/4 adding ftrace events for graph tracer
> - 2/4 graph tracer - adding support for passing flags to ouput functions
> - 3/4 graph output support for irqsoff tracer
> - 4/4 graph output support for preemptirqsoff/preemptoff tracers
>
>
> plz let me know what you think
>
> wbr,
> jirka
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