Benchmarking tokio::sync::mpsc against crossbeam::channel across ARM64 (OCI Ampere A1) and x86-64 (AMD Ryzen 9 9900X). Varying message sizes from 8 B to 32 KB to find where the async tax bites — and where it disappears.
Benchmarking tokio::sync::mpsc against crossbeam::channel across ARM64 (OCI Ampere A1) and x86-64 (AMD Ryzen 9 9900X). Varying message sizes from 8 B to 32 KB to find where the async tax bites — and where it disappears.
On the tokio multi-thread scheduler’s worst-case benchmark, pulling tasks from the inject queue in batches rather than one at a time reduces latency by 92%. The change reuses a batch-pop helper already present in the idle path, capped at 32 to prevent burying local work behind converted-remote tasks.
On the tokio multi-thread scheduler’s worst-case benchmark, pulling tasks from the inject queue in batches rather than one at a time reduces latency by 92%. The change reuses a batch-pop helper already present in the idle path, capped at 32 to prevent burying local work behind converted-remote tasks.
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Published on the Cloudflare blog.
Published on the Cloudflare blog.
Published on the Cloudflare blog.
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