On 22 Jul 2019, at 17.45, Alessio Cecchi <ales...@skye.it> wrote: > > one server of the ring is now running Dovecot 2.3.7 and works fine with the > others Dovecot 2.2 since 3 days. > I notice only that the load avarage of this CentOS 7 server is higher > compared with CentOS 6 and Dovecot 2.2, but I don't know if is related to the > new operating system or Dovecot (hardware is the same). > How much higher? Can you check the individual dovecot processes' CPU usage? I guess mainly director, imap-login and pop3-login. The director code should be pretty much the same though.
The SSL code in login processes changed in v2.3, so I wonder if the new code has some performance issues.
