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Implement async trace mechanism - #7670

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jasnell/async-trace

Commits on Oct 9, 2026
- Add async-trace Rust crate for async activity tracking
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  6ee391d
- async-trace: add C++ listener sink, default turn cause, byte strings
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  a4184d2
Commits on Oct 10, 2026
- Add C++ facade for async activity tracking
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  36f046c
- Wire async tracing into IoContext
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  3c63f5e
- async-trace: adopted operations get a second holder; lazy default cause
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  82558ef
- async-trace: adoptOrCreate(), inline inert handles
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  00b4138
- Trace awaitIo/awaitJs bridges, timers and microtasks
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  43dd15a
- Create async trace operations from TraceContext
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  7a08b4f
- Detach async trace operations that outlive their call
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  613af5a
- async-trace: AsyncTraceWriter::flush(); name the path in open errors
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  8dee7da
- Add workerd --async-trace=<path>
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  e507332
- Write async trace events to Perfetto (workerd.async)
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  802a97b
- async-trace: end turns before releasing the isolate lock
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  de7e666
- Report async trace tasks to the V8 inspector (local dev)
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  c74f986
- async-trace: capture creation stacks through AsyncStackCapturer
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  52b9e63
- Add workerd --async-trace-stacks=<frames>
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  632747b
- async-trace: unowned resources, for promises
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  5d58d64
- Trace JavaScript promises with --async-trace-promises (local dev)
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  f63d22a
- async-trace: name stream and socket I/O as operations
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  a9a5e31
- async-trace: name request resources by event type
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  73dfd04
- async-trace: link requests to the context that delivered them
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  33d5c5c
- async-trace: say in --async-trace's help that the file holds request details
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  0b1ca4f
- async-trace: record an operation's parent operation
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  ca41f33
- async-trace: cover a JavaScript-backed request body in the scenario
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  bf3f38e
- async-trace: let queue sends and WebSocket opens report under their span
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  0722408
- async-trace: end the NDJSON trace with an exit line
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  475771c
- Document async tracing
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  ee70fdf
- Compare async tracing with span tracing in its doc
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  12e3f71
- async-trace: keep C++ listener stacks valid and exception-free
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  c6f88c3
- async-trace: start inspector tasks only for scheduled resources
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  79edade
- async-trace: cap the stacks an isolate keeps
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  fb1ef90
- async-trace: cover the queue send in the end-to-end scenario
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  488e229
- async-trace: tell sinks when a resource is forgotten
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  76d0795
- async-trace: end the trace with an exit line on a clean shutdown too
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  215e4ce
- async-trace: test how the trace ends with a context open at shutdown
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  153e283

Commits

Commits on Oct 9, 2026

Commits on Oct 10, 2026