We have been building a platform on EasySocial for about 6 months and have done some Alpha testing with 200 users recently. (Not concurrent users, just 200 users from around the world using the platform probably with a maximum concurrency of about 20.)
My questions are:
1) How many users have you successfully hosted on your EasySocial instance?
2) How many concurrent?
3) What's your secret? :-) Or Secrets?! (CDN (which one?) Hosting architecture? Load Balancing? Avoiding certain Joomla! process hogs? Porting to MongoDB? You name it!?)
A few years back I managed to support about 300 concurrent users at decent performance levels on JomSocial running on two maxed out servers (one for DB and one for Process) using CDNs (content distribution networks) to handle heavy files.
Overall I was disappointed with JomSocial's ability to scale and I have big hopes for EasySocial.
I'd love to have some anecdotal evidence so that I can move being "hope" and make a real business case to my co-workers for the platform.
Cheers!
Grif