mm23504570 commented on issue #721: Question About [NOTIFYME]putMessage in lock cost time(ms)=4052 URL: https://github.com/apache/rocketmq/issues/721#issuecomment-457578706 @duhenglucky Thank you. I will set sendMessageThread to 8 to test it. You mean reserve relative more free memory for rocketmq. Is this done to keep the messages being consumed in the page cache as much as possible and avoid the IO blocking caused by a lot of page steal?
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