I have been developing on a magento2 docker env (warden) environment for weeks with no problems. Development mainly on the frontend in developer mode, deactivating only the full_page, block_html and layout caches. Normally the site loaded at an acceptable time (20-30 seconds) while clearing the entire cache it loaded in 50-60 seconds.

Suddenly the environment became extremely slow. Each page loads in about 10-15 minutes, both on frontend and on backend and the CPU usage goes to the max value (there are always at least 5-6 processes php-fpm that consume the maximum available cpu). The browser loads 10 static files at a time (every 30 sec)

I tried to clean up all files, clear all caches and restart the static-content:deploy and di:compile but the environment continues to be extremely slow.

I have no active external modules and there are no particular errors on the logs.

Is there any particular parameter that can cause these problems?

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EDIT: Another strange behavior is that inside the container there are about 20 php-fpm processes running and they all consume a lot of CPU. it is as if the php processes were struggling to generate static files in developer mode but I don't understand why.


1. Increase PHP memory_limit.
2. bin/magento catalog:image:resize (applicable if you have images)

Try php bin/magento setup:static-content:deploy -f or php bin/magento cache:enable

  • 1. The memory limit is the maximum possible 2. No i haven't image yet.. but the problem also occurs on page there are no images..
    – AntonioC
    Nov 21 '20 at 1:09
  • Did you try the revised answer ?
    – Senku
    Nov 25 '20 at 13:09
  • Yes but i am on developer mode. I don't need use setup:static-content
    – AntonioC
    Dec 25 '20 at 1:18

Do you XDebug installed and active. Sometimes you'll get what feel like a never ending response with XDebug active

  • xdebug isn't active
    – AntonioC
    Nov 23 '20 at 11:07

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