When using Symfony 4.4, you are experiencing large performance impacts when
opcache.preload is active.
newrelic.preload_framework_library_detection = false.
Ensure that your preload settings are compliant with Symfony.
Restart your service.
opcache.preload are both enabled, we query the
opcache status with each function call. However, there are several issues related to using Symfony 4.4 that can result in this query returning
null. This consistently happening will cause significant overhead in New Relic's PHP agent.
Currently, this issue has only been reported by environments using Kubernetes.