Symfony 4 extremely slow on windows

Question

I\'ve used Symfony on Windows 10 for my projects for a few years (SF2, SF3), and I recently moved to Symfony 4 to build a new project but perfo

Answer 1

I had a Symfony problem with initialization taking 3-5 seconds for every single request, which made local development very slow. I tried everything for improving it (php.ini setting changes, upgrading php, etc), I finally walked through Symfony starting up in xDebug and found that the dev cache was being rebuilt every single page request and that the file services.yaml was triggering the cache rebuild.

When I looked at the Services.yaml file I realized that the modified time was way in the future, because I was testing time changes and had moved my computer time into the future and saved the services.yaml file during that. When I re-saved the file in the current time it stopped forcing the cache to be rebuilt every time.