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This release enables a multi-threaded runtime. Previously, the proxy would only ever use a single thread for data plane processing; now, when the proxy is allocated more than 1 CPU share, the proxy allocates a thread per available CPU. This has shown substantial latency improvements in benchmarks, especially when the proxy is serving requests for many concurrent connections. --- * Add a `multicore` feature flag (linkerd/linkerd2-proxy#611) * Add `multicore` to default features (linkerd/linkerd2-proxy#612) * admin: add an endpoint to dump spawned Tokio tasks (linkerd/linkerd2-proxy#595) * trace: roll `tracing` and `tracing-subscriber` dependencies (linkerd/linkerd2-proxy#615) * stack: Add NewService::into_make_service (linkerd/linkerd2-proxy#618) * trace: tweak tracing & test support for the multithreaded runtime (linkerd/linkerd2-proxy#616) * Make FailFast cloneable (linkerd/linkerd2-proxy#617) * Move HTTP detection & server into linkerd2_proxy_http (linkerd/linkerd2-proxy#619) * Mark tap integration tests as flakey (linkerd/linkerd2-proxy#621) * Introduce a SkipDetect layer to preempt detection (linkerd/linkerd2-proxy#620)
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This release enables a multi-threaded runtime. Previously, the proxy
would only ever use a single thread for data plane processing; now, when
the proxy is allocated more than 1 CPU share, the proxy allocates a
thread per available CPU. This has shown substantial latency
improvements in benchmarks, especially when the proxy is serving
requests for many concurrent connections.
multicorefeature flag (add feature-flagged support for multi-threaded Tokio runtime linkerd2-proxy#611)multicoreto default features (Addmulticoreto default features linkerd2-proxy#612)tracingandtracing-subscriberdependencies (trace: rolltracingandtracing-subscriberdependencies linkerd2-proxy#615)