hecter-java-architect opened a new issue, #20969: URL: https://github.com/apache/pulsar/issues/20969
### Search before asking - [X] I searched in the [issues](https://github.com/apache/pulsar/issues) and found nothing similar. ### Version 3 Aliyun ecs，broker and bookie share a disk disk have 16800 iops pulsar-version：3.0.0 CentOS Linux release 7.9.2009 (Core) 3.10.0-1160.88.1.el7.x86_64 ### Minimal reproduce step Through the fni tool, when testing disk performance, it is found that turning on/off direct has a great impact on disk iops  ### What did you expect to see? I hope to see that the disk io of pulsar can exceed 4k ### What did you see instead?  ### Anything else? _No response_ ### Are you willing to submit a PR? - [ ] I'm willing to submit a PR! -- 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]
