[GitHub] Cicizz opened a new issue #585: As the number of messages increases, consume slows

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

Cicizz opened a new issue #585: As the number of messages increases,consume slows
URL: https://github.com/apache/rocketmq/issues/585
 
 
   when i do consumer performance test, as the number of messages increases,consume slows,
   
   **phenomenon**
   1.when there is no messages in broker, send 10 million messages to broker, and then start consumer,
   the result show the tps is 60000-70000,
   2.Continue send messages until distio is over 80%,then send 10 million messages(another topic) to broker，start consumer to consume messages of this topic,and now the tps is average 30000.
   How to solve this problem?thanks
   
   **config info**
   1 nameserver 8cpu 16g.
   4 broker 2m-2s  8cpu 16g and disk size is 300g.
   flushDiskType=ASYNC_FLUSH
   brokerRole=SYNC_MASTER
   slaveReadEnable=true
   
   ** other info **
   also when test send message,the context-switch is very high(master is 130000)

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