Best practice for OPcache memory size in Adobe Commerce

For Adobe Commerce on cloud infrastructure Pro plan architecture 2.3.x - 2.4.x, it is recommended to set opcache.memory_consumption to at least 2GB, to avoid performance degradation.

Affected products and versions

• Adobe Commerce on cloud infrastructure Pro plan architecture 2.3.x - 2.4.x
• PHP 7.0 - PHP 8.0 and later

Best practice

Allocate at least 2GB of memory for the OPcache PHP module.

The OPcache module is configured in the php.ini file. To allocate 2048MB of memory, set opcache.memory_consumption = 2048 . For more details see Performance Best Practices - PHP Settings and Configure PHP options in our developer documentation.

Related reading

Best practices for improving Adobe Commerce on cloud infrastructure site performance in our support knowledge base:

• Database best practices for Adobe Commerce on cloud infrastructure
• Most common database issues in Adobe Commerce on cloud infrastructure
• Indexers "Update On Schedule" optimizes Adobe Commerce performance