using phpfastcache file cache system

I have a question regarding phpfastcache that i hope someone can answer and explain to me. phpfastcache claim that it can serv 10,000+ visitors, but what is the limit it can serv if there is any? let me give you a example so you can answer me based on it.

• Let say my website or app have 12 million online users ( just example ) and i have to send the same query to the database on every page/app load. Do you think it will be able to handle this amount of users? we are using a nosql database and our website is linked to a cdn. We know that memory is always faster than file system, but we are using file system when we are using phpfastcache for cache. I hope there is someone who can answer my question and explain things to me to future use.

It doesn't claim that it can serve 10.000 requests! It suggests that it's a great fit if you have 10.000 identical requests to the database. To get real numbers you have to profile your server.

As it's probably an Apache based one it will depend on the number of concurrent connections Apache can handle.

What the guys from phpfastcache mean is that if you have a page that's constantly hit and your page performs the same query over and over again their software is a great fit to that problem.