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Enhancements on wasm function execution time statistic (#2985)

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Enhance the statistic of wasm function execution time, or the performance
profiling feature:
- Add os_time_thread_cputime_us() to get the cputime of a thread,
  and use it to calculate the execution time of a wasm function
- Support the statistic of the children execution time of a function,
  and dump it in wasm_runtime_dump_perf_profiling
- Expose two APIs:
  wasm_runtime_sum_wasm_exec_time
  wasm_runtime_get_wasm_func_exec_time

And rename os_time_get_boot_microsecond to os_time_get_boot_us.
This commit is contained in:
liang.he
2024-01-17 09:51:54 +08:00
committed by GitHub
parent 25ccc9f2d5
commit 5c8b8a17a6
24 changed files with 336 additions and 86 deletions
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9
core/iwasm/interpreter/wasm_interp_classic.c
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@ -850,7 +850,7 @@ ALLOC_FRAME(WASMExecEnv *exec_env, uint32 size, WASMInterpFrame *prev_frame)
if (frame) {
frame->prev_frame = prev_frame;
#if WASM_ENABLE_PERF_PROFILING != 0
frame->time_started = os_time_get_boot_microsecond();
frame->time_started = os_time_thread_cputime_us();
#endif
}
else {
@ -866,9 +866,14 @@ FREE_FRAME(WASMExecEnv *exec_env, WASMInterpFrame *frame)
{
#if WASM_ENABLE_PERF_PROFILING != 0
if (frame->function) {
WASMInterpFrame *prev_frame = frame->prev_frame;
frame->function->total_exec_time +=
os_time_get_boot_microsecond() - frame->time_started;
os_time_thread_cputime_us() - frame->time_started;
frame->function->total_exec_cnt++;
if (prev_frame && prev_frame->function)
prev_frame->function->children_exec_time +=
frame->function->total_exec_time;
}
#endif
wasm_exec_env_free_wasm_frame(exec_env, frame);