Chiebot-Mirror/grpc - grpc - Gitea: Git with a cup of tea

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Author	SHA1	Message	Date
AJ Heller	3fb738b9b1	[EventEngine] Implement work-stealing in the EventEngine ThreadPool (#32869 ) 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: ![image](https://user-images.githubusercontent.com/295906/236315252-35ed237e-7626-486c-acfa-71a36f783d22.png) 2023-05-04: `bm_thread_pool` benchmark results in the Linux RBE environment (unsure of machine configuration, likely small), comparing this PR to master. ![image](https://user-images.githubusercontent.com/295906/236317164-2c5acbeb-fdac-4737-9b2d-4df9c41cb825.png) --------- Co-authored-by: drfloob <drfloob@users.noreply.github.com>	2 years ago

Author

SHA1

Message

Date

AJ Heller

3fb738b9b1

[EventEngine] Implement work-stealing in the EventEngine ThreadPool (#32869 )

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:


![image](https://user-images.githubusercontent.com/295906/236315252-35ed237e-7626-486c-acfa-71a36f783d22.png)

2023-05-04: `bm_thread_pool` benchmark results in the Linux RBE
environment (unsure of machine configuration, likely small), comparing
this PR to master.


![image](https://user-images.githubusercontent.com/295906/236317164-2c5acbeb-fdac-4737-9b2d-4df9c41cb825.png)

---------

Co-authored-by: drfloob <drfloob@users.noreply.github.com>

2 years ago

1 Commits (5b724c09c5fe0b6caa729bf88d280aa68bccbbef)