Black-Mamba24 opened a new issue #391: CommitLog Append Message Memory Copy Question URL: https://github.com/apache/rocketmq/issues/391 **FEATURE REQUEST** 1. Please describe the feature you are requesting. checking why pageCacheLockTime get too long when press test. Reading code, why doAppend() methed write message to "msgStoreItemMemory" which is a heap byteBuffer, and copy to real byteBuffer. maybe write directly to mappedByteBuffer is better? 2. Provide any additional detail on your proposed use case for this feature. nothing 2. Indicate the importance of this issue to you (blocker, must-have, should-have, nice-to-have). Are you currently using any workarounds to address this issue? 4. If there are some sub-tasks using -[] for each subtask and create a corresponding issue to map to the sub task: nothing
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