Every @Async behaviour that surprises people, asserted by a test and captured to docs/output/: the self-invocation trap, what CGLIB cannot override, the IllegalArgumentException a plain return type throws, the unbounded queue that makes max-size decoration, spring.task.execution.propagate-context (new in Boot 4.1.0), the two Executor beans that leave @Async on an unpooled SimpleAsyncTaskExecutor, and JEP 491 measured on JDK 21 against JDK 25.
21 lines
751 B
Plaintext
21 lines
751 B
Plaintext
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java.version : 21.0.12.1
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jdk.virtualThreadScheduler.parallelism: 2
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tasks=32 sleep=300ms
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no monitor held : 313 ms
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blocked inside synchronized: 4806 ms
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Pinned would be about 4800 ms for the synchronized run (32 tasks / 2 carriers x 300 ms).
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Not pinned is about 300 ms for both.
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java.version : 25.0.4.1
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jdk.virtualThreadScheduler.parallelism: 2
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tasks=32 sleep=300ms
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no monitor held : 312 ms
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blocked inside synchronized: 301 ms
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Pinned would be about 4800 ms for the synchronized run (32 tasks / 2 carriers x 300 ms).
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Not pinned is about 300 ms for both.
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