Replace stack pool mutex with lock-free queue #4196
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theduke
approved these changes
Sep 1, 2023
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Alternate implementation of #3922 using a lock-free queue instead of thread locals. I benchmarked this by creating 100 threads and running a simple WASM function in a loop 30,000 times in each thread. This PR reduces the total time by ~75% on my 10-core CPU, and does not create meaningful impact on single-threaded performance. Also, since the queue is shared among threads, there is no risk of high memory consumption in highly concurrent scenarios.