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Track tokio performance regression (1.48) and upcoming fix in 1.49 #5047

@eval-exec

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@eval-exec

Benchmark results show ~4% performance slowdown in CKB due to the update to tokio@1.48 compared to the previous version. tokio-rs/tokio#7692

A fix addressing this slowdown has been merged upstream and is expected in the upcoming tokio@1.49 release.

Since tokio@1.49 is not yet released, this issue tracks the performance impact and plans to upgrade once 1.49 is published.

  • Observed ~4% slowdown in benchmarks with tokio@1.48
  • Upstream includes a fix for this performance regression
  • tokio@1.49 release is pending

We should plan to upgrade tokio to 1.49 after its release to regain performance.

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