Messages in this thread | ![/](/images/icornerl.gif) | | From | Jiri Olsa <> | Subject | [PATCHv6 0/4] tracing: function graph output for preempt/irqs-off tracers | Date | Fri, 2 Apr 2010 19:01:19 +0200 |
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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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