vm/sampling_profiler.hpp

   1 namespace factor
   2 {
   3
   4 #define FACTOR_PROFILE_SAMPLES_PER_SECOND 1000
   5
   6 struct profiling_sample
   7 {
   8         // Number of samples taken before the safepoint that recorded the sample
   9         cell sample_count;
  10         // Number of samples taken during GC
  11         cell gc_sample_count;
  12         // Number of samples taken during foreign code execution
  13         cell foreign_sample_count;
  14         // Number of samples taken during code execution in non-Factor threads
  15         cell foreign_thread_sample_count;
  16         // Active context during sample
  17         context *ctx;
  18         /* The callstack at safepoint time. Indexes to the beginning and ending
  19         code_block entries in the vm sample_callstacks array. */
  20         cell callstack_begin, callstack_end;
  21
  22         profiling_sample(factor_vm *vm,
  23                 cell sample_count,
  24                 cell gc_sample_count,
  25                 cell foreign_sample_count,
  26                 cell foreign_thread_sample_count,
  27                 context *ctx);
  28 };
  29
  30 }