RockteMQ-AI commented on issue #10512: URL: https://github.com/apache/rocketmq/issues/10512#issuecomment-4711383634
**Issue Evaluation** Category: `type/enhancement` | Status: **Evaluated** Three independent per-RPC allocation eliminations: 1. **Guava Stopwatch in RemotingCommand** — Valid. Stopwatch allocates internal Ticker on construction; replacing with direct `System.nanoTime()` avoids the allocation. 2. **Constructor copy (RemotingCommand)** — Valid. The copy constructor creates a new `HashMap` for extFields even when the original is empty; lazy-copy or immutable-empty optimization is reasonable. 3. **Netty writability log downgrade** — Valid. The `isWritable()` check logs at WARN on every failed write; downgrading to DEBUG reduces log noise during normal backpressure. **Feasibility:** Feasible. Each change is isolated. **Scope:** remoting module **Compatibility:** No breaking changes. --- *Automated evaluation by RockteMQ-AI* -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
