binlog多线程同步多张表效率问题咨询
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### Search before asking
- [X] I had searched in the [issues](https://github.com/DTStack/chunjun/issues) and found no similar question.
- [ ] I had googled my question but i didn't get any help.
- [ ] I had read the documentation: [ChunJun doc](https://dtstack.github.io/chunjun) but it didn't help me.
### Description
binlog同步一张表,插入1000条数据要2分钟,开启10个线程同步10张表,每个表插入1000条数据需要大概20分钟,按道理说多线程跑的话应该也是2分钟左右,为什么时间是线性的增长,是不是日志解析那块儿是顺序解析的?
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