java - 向mongoDB中插入数据时，cpu的system time很高是为什么？

Question

1、向mongoDB中插入1亿条单条为1KB的数据
2、top一下

3、cpu的sy很高，从始至终一直居高不下，且sy和us加起来几乎把cpu资源耗尽
4、当前服务器只有mongodb在跑任务，所以cpu资源基本都是mongodb耗尽的
5、有没有大神了解这是什么情况，这是正常的吗？？？
6、急！！！在线等！！！！！

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插入时mongo状况：
1、mongostat

2、mongotop

3、日志很正常，未报错
4、mongodb版本是3.2.6

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CPU监控截图，100并发

Answer 1

1. Use db.currentOp() to check the current operation;

2. Check the mongod.log log to see if there are any other abnormalities;

3. Use mongostat/mongotop to check the performance;

4. Can you tell me the database version? If the WiredTiger storage engine is used and Compresion is turned on, Compression will also consume CPU resources.

For reference.

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