zhouxinyu commented on issue #262: MessageStore IndexService performance improve URL: https://github.com/apache/rocketmq/issues/262#issuecomment-377425198 ``` Performance improve data, old version is using pagecache for Index read and write while new version is using randomAccessFile read and write. ``` The randomAccessFile also will go through the pagecache. And all the store file should use the MappedFile.
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