Back out "Revert D30327514: [Pytorch lite predictor] Use KinetoEdgeCPUProfiler for operator profiling." (#64307)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/64307
Original commit changeset: 0b2aa7c57d08
Restores original changes.
This diff changes the way operator profiling is done in lite predictor
benchmarking binary.
Instead of using custom callbacks it uses KinetoEdgeCPUProfiler to profile
events and then generate operator level metric from it.
Since KinetoEvents do not contain cpu clock time, now we report only wallclock
time.
This unifies various profiling effort that we have for benchmarking purpose. In
production we will still use observer based mechanism, but the advantage of
using kineto profiler is that we get few other things for free, such as:
chrome trace generation.
operator level memory profiling (to be added)
flop counts (to be added)
Furthermore possible we can use python post processing script to parse chrome
trace and generate output similar to torch.profiler. (To be done)
Furthermore removes some tests from test_lite_interpreter.cpp which were testing module hierarchy in debug info. They should be covered by test_mobile_profiler.cpp.
Test Plan:
aibench run
Model without debug info:
https://www.internalfb.com/intern/aibench/details/219598441154763
Model with debug info and --print_module_info true (see Operator summary has now module hierarchy information).
https://www.internalfb.com/intern/aibench/details/617154236292985
Reviewed By: raziel
Differential Revision: D30680354
fbshipit-source-id: b6ba0d59c510c13d13d9935b1d8051cc82ffa4e9
