Roundcube performace issue and scalability

[ste74]

Hi ,
Running latest Roundcube behind nginx+ph-fpm in static mode and using sql3ite like database and authenticating against AD ....
Im seeing getting slow when the concurrency increase ..


No idea what is the bottleneck right now even is put in debug mode php-fpm .

I have 5 k of mailboxes but the webemail site is not too much intensive used during the day ... expect some peaks that slow the site from 1 sec to load the homepage after login to 20 sec .

Is it bad idea keep using sql3ite in place of Mysql because Mysql can write in parallel rather than sql3ite keep queuing write one by one ?

What i can consideirng for having an infrastructure much more scalable ?

[ste74]

Hi guys ,

someone suggesting something ?

Thank you