最終更新:2014-05-15 (木) 18:55:18 (2321d)  

Tracepoints
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  • kernel.org/doc/Documentation/trace/tracepoints.txt?

メモ

  • Used to record data at a specific point in the kernel for later retrieval
  • Light weight hooks added to the kernel
  • Two types: static tracepoint and dynamic tracepoint
  • can be used by a number of tools for kernel debugging and performance problem diagnosis
  • They have zero overhead when disabled and minimal overhead when enabled

マクロ

  • TRACE_EVENT?() –TP_PROTO?() –TP_ARGS?() –TP_STRUCT__entry?() –TP_fast_assign?() –TP_printk?()