Concurrency performance test comparison between MySQL and MongoDB

As I said in the previous article, I am going to do a concurrency comparison test between MongoDB and Mysql. After nearly a week of testing, it has been completed. The results are as follows:
Concurrency comparison test curve between MongoDB and Mysql:

Let’s roughly summarize:
From the data and charts, we can see that under the concurrency test, the advantage of MongoDB over Mysql is not as great as that of a single user (refer to the previous test article in this space). The insert and update performance of MongoDB is about 2~3 times that of Mysql, and MongoDB is equivalent to Mysql in terms of select.
Test environment: CPU: Intel(R) Core(TM)2 Duo CPU
E7500 @ 2.93GHz
Memory: 4G
Hard disk: ordinary SATA hard disk 500G
OS: Centos Linux 5.4 X64 Mysql version: 5.0.77, MongoDB is 1.40 compiled by itself.
The above results are tested by the Java program (http://farmerluo.googlecode.com/files/mongotest-0.4.rar) written before, because there is only one test machine, and the test program is the same as mysql and MongoDB running the tests on the same machine.