mongodb数据插入慢

Spring.xml配置文件中
<mongo:options
     connections-per-host="8"
     threads-allowed-to-block-for-connection-multiplier="4"
     connect-timeout="1000"
     max-wait-time="1500"
     auto-connect-retry="true"
     socket-keep-alive="true"
     socket-timeout="1500"
     slave-ok="true"
     write-number="1"
     write-timeout="0"
     write-fsync="true"/>
</mongo:mongo>

将
write-fsync=" true"/>
修改为
write-fsync="false"/>
即可.
测试发现.true时,插入需要45毫秒左右.改为false.只需3,4毫秒.差距还是比较大的.