Changed to a new server, and now accessing the website is extremely slow. What are the possible causes?
The current actual situation is that the php parsing process is very busy when it is connected to the php parsing process.
The php parsing process is also very busy when it is connected to the database.
This causes high load. The intranet loopback port is very busy, more than 100M
The program has not been changed, and the number of visits has not changed in any curve.
What are the general aspects to troubleshoot errors?
Server hardware problem?
php-fpm configuration problem?
other problems?
fascgi related parameters are
![[Web front-end] Node.js quick start](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
Let’s talk about other problems that may cause the website to slow down in addition to hardware:
1. Code infinite loop.
2. There are slow queries in the database.
3. The number of website visits (which may be attacked) is too large and exceeds the bandwidth limit.
The environment has been rebuilt. Have the database indexes been rebuilt? Have you migrated the caching solution you used before? Look at the log?