3fb738b9b1
This PR implements a work-stealing thread pool for use inside EventEngine implementations. Because of historical risks here, I've guarded the new implementation behind an experiment flag: `GRPC_EXPERIMENTS=work_stealing`. Current default behavior is the original thread pool implementation. Benchmarks look very promising: ``` bazel test \ --test_timeout=300 \ --config=opt -c opt \ --test_output=streamed \ --test_arg='--benchmark_format=csv' \ --test_arg='--benchmark_min_time=0.15' \ --test_arg='--benchmark_filter=_FanOut' \ --test_arg='--benchmark_repetitions=15' \ --test_arg='--benchmark_report_aggregates_only=true' \ test/cpp/microbenchmarks:bm_thread_pool ``` 2023-05-04: `bm_thread_pool` benchmark results on my local machine (64 core ThreadRipper PRO 3995WX, 256GB memory), comparing this PR to master:  2023-05-04: `bm_thread_pool` benchmark results in the Linux RBE environment (unsure of machine configuration, likely small), comparing this PR to master.  --------- Co-authored-by: drfloob <drfloob@users.noreply.github.com> |
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| BUILD | ||
| create_sockpair.cc | ||
| create_sockpair.h | ||
| iocp_test.cc | ||
| win_socket_test.cc | ||
| windows_endpoint_test.cc | ||
