Opcache memory consumption

[Spark111]

Hi,

 

For a client we have the following setup:

Plesk, PHP7, Apache, Nginx as proxy.

PS 1.6.1.5

We are using Opcache. Memory allocated: 2G.

 

After restarting PHP we run Xenu to prime the cache.

Very quickly after that the Opcache is full and hit-rate starts to decline.

 

A whopping 2G.

My question: How much more is needed?

 

Thanks.