Php Opcache (Php performance Increase – Cache Optimization)

A few words about the OPcache.

“OpCode Cache“. “APC” is one of them. “Zend OPcache” is another one; and this Zend OPcache (or OPcache for short) is built into php 5.5, not APC.

The workaround is to disable the OPcache, which is enabled by default. It is a setting in php.ini file.
[crayon-6634040082831290786770/]

The question has been raised if disabling the OPcache before installation and enabling it right after would be good enough. While I don’t have a solid answer for that, it should be good enough to keep it disabled during installation and upgrades. I permanately turned it off on my test site.

 

if we can disable the OPcache per site basis. Like disabling it for a DomainCluster  sites and enabling it for others.

Yes,  can do that.

  • Developer can disable OPcache per site basis
  • Developer cannot enable it whenever Developers want it;
  • It should be enabled by default.
  • If developer has disabled it through php.ini file, then you need to revert it back.

Placing below line in your “settings.php” file will disable it.
[crayon-6634040082842491282027/]
 

 apache config should

has“AllowOverride All” in order to make the .htaccess method work; which is also a requirement for installing & running other properties.