Question
High CPU and Memory PHP-FPM 7.2
- Posted on December 30, 2018
- PHPUbuntu 18.04
Asked by Stefanos T
Hello,
We are using a droplet with 4 GB Memory / 80 GB Disk / FRA1 - Ubuntu 18.10 x64. We have installed varnish, nginx 1.15.5, php 7.2. Mysql is hosted on another droplet. In droplet graphs php-fpm7.2 seems to use CPU 95% and Memory 46%. I have tried many configurations for php-fpm without fixing my problem.
Previously i had my droplet using php-fpm 7.0 and was working normally. Any suggestions please?
This textbox defaults to using Markdown to format your answer.
You can type !ref in this text area to quickly search our full set of tutorials, documentation & marketplace offerings and insert the link!
These answers are provided by our Community. If you find them useful, show some love by clicking the heart. If you run into issues leave a comment, or add your own answer to help others.
Get our biweekly newsletter
Sign up for Infrastructure as a Newsletter.
Hollie's Hub for Good
Working on improving health and education, reducing inequality, and spurring economic growth? We'd like to help.
Become a contributor
Get paid to write technical tutorials and select a tech-focused charity to receive a matching donation.
Hi, For starters create separate php-fpm pools for each domain, and you will see in htop which domain creates the load. Then you will need PHP profiling to find the bottleneck in the code of this site.
Regards Gregory
On my /etc/php/7.2/fpm/pool.d/www.conf we are having the following:
pm = dynamic pm.max_children = 10 pm.start_servers = 4 pm.min_spare_servers = 2 pm.max_spare_servers = 6 pm.max_requests = 500
Using top -c you can see high CPU usage (i cannot find a way to check which domain is each pid refer to):
9484 www-data 20 0 656060 397488 114020 S 56.5 9.8 3:02.52 php-fpm: pool www
9621 www-data 20 0 634516 362396 100496 S 34.6 9.0 1:08.24 php-fpm: pool www
9514 www-data 20 0 554140 283408 101936 S 19.3 7.0 2:58.73 php-fpm: pool www
9487 www-data 20 0 543668 271680 100692 S 17.6 6.7 2:52.57 php-fpm: pool www
1084 redis 20 0 971644 262836 2584 S 10.0 6.5 75:30.51 /usr/bin/redis-server 127.0.0.1:6379
9517 www-data 20 0 666512 395724 101900 R 2.0 9.8 2:28.29 php-fpm: pool www