* Ralf Hildebrandt <ralf.hildebra...@charite.de>: > Due to the ongoing performance issues with 2.0.x I switched back to > 1.2.15 yesterday evening, with no changes to the machine or my users. > > (I migrated from 1.2.15 to 2.0.x by converting the existing config) > > Today, we have MUCH LESS load, with the same number of logins/min. > > I cannot say what exactly causes this immense increase in load, but one > observation is that the time spent in system() has now dropped (user and > iowait have stayed contant) to a third of the values I was seeing with > 2.0.x. > > This evening I'll post some graphs showing two comparable 24 hour > ranges.
I uploaded a preliminary screenshot with comments: http://www.arschkrebs.de/bugs/dovecot.png During the night we're using clamdscan to scan mailboxes for viruses, this results in the big block of system & user from 0:00 until about 08:00 -- Ralf Hildebrandt Geschäftsbereich IT | Abteilung Netzwerk Charité - Universitätsmedizin Berlin Campus Benjamin Franklin Hindenburgdamm 30 | D-12203 Berlin Tel. +49 30 450 570 155 | Fax: +49 30 450 570 962 ralf.hildebra...@charite.de | http://www.charite.de
