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Posted to dev@rocketmq.apache.org by GitBox <gi...@apache.org> on 2020/09/10 12:45:16 UTC

[GitHub] [rocketmq] RongNanNan commented on issue #2296: vm.extra_free_kbytes 和 warmMapedFileEnable 问题

RongNanNan commented on issue #2296:
URL: https://github.com/apache/rocketmq/issues/2296#issuecomment-690259331


   该部分代码就是写pagecache，为啥这么慢
   目前有2个方向：
   1. 可用内存过小，突然的大内存申请，导致后台内存回收，慢导致延迟，调整vm.extra_free_kbytes能否解决？
   2. 提前锁定内存warmMapedFileEnable 开启，是否能解决问题？
   


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