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authorJosh Triplett <josh@joshtriplett.org>2009-08-06 07:57:01 -0700
committerSteven Rostedt <rostedt@goodmis.org>2009-08-26 00:32:04 -0400
commit6591b493871cf9b17de2ba272edb8ab529a8058b (patch)
tree981dacab445637a5b3e6125c4571b9633f9417d1 /ipc
parentf0693c8bd5c50380b299e19d19e7640024640b42 (diff)
tracing: Add vim script to enable folding for function_graph traces
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@joshtriplett.org> LKML-Reference: <20090806145701.GB7661@feather> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Diffstat (limited to 'ipc')
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