[GitHub] [rocketmq] areyouok edited a comment on issue #3315: Can provide p99<=1.5ms ?

[GitBox <gi...@apache.org>]

areyouok edited a comment on issue #3315:
URL: https://github.com/apache/rocketmq/issues/3315#issuecomment-914021960


   You should check if there is bottleneck in client side.
   
   I setup a  4.9.1 master/slave pair. 6 client send total 95000 TPS (produce and consume). The P99 of produce is 1.0 ms.
   
   All configuration is default.
   
   ```
   # sudo sysctl -w vm.min_free_kbytes=10000000 # modify this carefully
   sudo sysctl -w vm.overcommit_memory=1
   sudo sysctl -w vm.drop_caches=1
   sudo sysctl -w vm.zone_reclaim_mode=0
   sudo sysctl -w vm.max_map_count=655360
   sudo sysctl -w vm.dirty_background_ratio=50
   sudo sysctl -w vm.dirty_ratio=50
   sudo sysctl -w vm.dirty_writeback_centisecs=360000
   sudo sysctl -w vm.page-cluster=3
   sudo sysctl -w vm.swappiness=1
   ```
   
   


-- 
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: dev-unsubscribe@rocketmq.apache.org

For queries about this service, please contact Infrastructure at:
users@infra.apache.org