Disable OPcache within W3TC

Hello,

I am running a WordPress Multisite with W3 Total Cache, and have been running into performance issues due to W3’s clearing of OPcache.

I’m finding that OPcache is flushed every time I publish or update a page, an unnecessary action which is having a significant impact on my site’s performance. I would like to disable this automatic flushing of OPcache – or at the very least reduce the frequency at which it is flushed.

So far I have had success eliminating the OPcache flush while preserving the flush of the other caches by making the following adjustment to SystemOpCache_Core.php:

public function flush() {
                if ( Util_Installed::opcache() ) {
                        return opcache_reset();
                } else if ( Util_Installed::apc_opcache() ) {
                                $result = apc_clear_cache();   // that doesnt clear user cache
                                $result |= apc_clear_cache( 'opcode' );   // extra
                                return $result;
                        }
                return false;
        }

to:

public function flush() {
                return false;
                if ( Util_Installed::opcache() ) {
                        return opcache_reset();
                } else if ( Util_Installed::apc_opcache() ) {
                                $result = apc_clear_cache();   // that doesnt clear user cache
                                $result |= apc_clear_cache( 'opcode' );   // extra
                                return $result;
                        }
                return false;
        }

Naturally I would prefer a solution that does not require modifying the plugin’s code. Is there a configuration that I can apply to W3TC or my php.ini which would eliminate the automated OPcache flush within W3TC?

• This topic was modified 3 years, 6 months ago by esszach.