To reflect changes to the website, I have to restart php-fpm every time. That's not typical. Is that bad? Is there a way to fix this?
sudo service php-fpm restart
Such an issue is not possible in default Magento.
Is there Cloudflare, varnish, or opache set up in your store?
Yes, I believe we are using OPcache. Is there a way to fix this?
But somtimes, it fails, telling you restart: Unknown instance
Now, if you do not like to reboot your server, just kill the processes and have a fresh start
When an application requires vcruntime140_1.dll, Windows will check the application and system folders for this .dll file. If the file is missing you may receive an error and the application may not function properly.
In a temporary php file, put something like this (don't forget to remove it afterward):
<?php
phpinfo();
On recent PHP version (5.5+), search for Zend OPcache section and see if it's active or not It might be enabled in . If so, take a look to opcache doc to configure it properly