> On 16/10/2019 13:31 Ralf Hildebrandt via dovecot <dovecot@dovecot.org> wrote: > > > * Ralf Hildebrandt via dovecot <dovecot@dovecot.org>: > > * Timo Sirainen <t...@sirainen.com>: > > > > > > BTW: This post is a followup to my "2.3.7 slower than 2.3.6?" post from > > > > back in July. > > > > > > Fixed by > > > https://github.com/dovecot/core/commit/5e9e09a041b318025fd52db2df25052b60d0fc98 > > > and will be in the soon-to-be-released v2.3.8. > > > > I stopped 2.3.7, copied over the index files from the ramdisk into > > the physical "realm" and restarted with a fresh 2.3.8. It probably > > takes a few days to be absolutely sure. > > So, in general the performance issues are gone. > > But... > > I'm seeing odd hourly spikes almost every hour, on the hour. > You might say: Well yes, that's a cronjob sending lots of mails. But > it isn't. There's not more or less mail coming in at that very moment. > > I suspect something in dovecot running every hour (DH key regeneration?) > > -- > Ralf Hildebrandt
2.3.7 does not generate DH keys. It's been removed since 2.3.0 Is it possible for you to track and find out which process is causing the peak? Aki