Ji Juntao

> in doc , some words are wrong.. that are confusing me  the letter `e` -> `d` OMG, you are right. I'll change it in the doc. Sorry.

Here is a performance report of timing message, which is tested in a 32C 128G SSD machine. The report for machine with lower configuration is still on the way.... [Timing...

> @GenerousMan Can we make the report a blog in [rocketmq-site](https://github.com/apache/rocketmq-site.git)? It would remain valuable for future engineers when they perform evaluations. Of course. I will create a .md file...

Here is a new report, which is made in a 16C 32GB machine(ESSD). [Timing Message Performance Report(16C 32G 1T ESSD).pdf](https://github.com/apache/rocketmq/files/9622049/Timing.Message.Performance.Report.16C.32G.1T.ESSD.pdf)

两个broker收发普通消息都正常吗？只有定时消息有问题嘛？

LGTM, but would it be better to add `countDown` in this piece of code? ```java public void setSendRequestOk(boolean sendRequestOk) { this.sendRequestOk = sendRequestOk; } ```