So I realized the PHP OPcache size was set to 512 Mb on the server where I have 2 WordPress sites running (dev and production) and it was using up too much memory, reaching upwards of 75%. CPU use is very low and it only has 1 Gb memory to keep hosting fees low. I wonder if it's ok to set OPcache to 128 and if it might lower memory use, or does that not make sense?

#PHP #OPCache

@990000 How much memory does the site actually use for Opcache? There are scripts that can report on that, complete with pretty graphs.
I've only got one Wordpress site running, and there's not much there, but it's only using half of the 128mb for Opcache that I allocated.
Admittedly, it's been up for 3 months, and only got a couple of thousand files/keys being cached, but it has had over 64,000,000 cache hits
@alister I didn't think to check, good call