memory_limit = 2147483648 - OK

Is there a cap on how much to set here? I double my server RAM and increased the limit..

Setting the Dolphin php.ini setting, I see suggested like 512MB, I have increased to 2GB for memory limit.

will Dolphin benefit from this high setting? 

Thanks

Unlike operating systems, php does not swap out memory to disk when it runs out of memory. php will tell you it's out of memory and stop.

So increasing the memory beyond what it needs will not increase performance if that is what you were after.

not really,

So increasing the memory beyond what it needs will not increase performance if that is what you were after.My question is, what is the memory limit of Dolphin. [edit] or it's actual cap, if it has one.

How can you tell how much it is using?

Sorry for the stupid questions

I get what you mean, I have seen the "out of memory" when I first started out.

What is a good setting then for Dolphin?

I have never had to increase beyond 512MB  But thats just my site.

Those also is no dolphin limit. Dolphin does not use the memory. PHP does. So this applies to any PHP script. Not just dolphin. And i am not aware of any limits. But you should leave plenty for the OS to function correctly. You do not want your scripts the chance to consume all memory.

Thank you.