Why OpenBSD: Performance tendency: good or better remember exactly one case where OpenBSD performance was a problem very busy mysqld, more than a decade ago probably related to the hardware raid controller and its driver webservers, firewalls, routers, loadbalancers, databases, application servers, DNS, ... performance always at least sufficient, often much better no OS can "fix" stupid application code fetching 100000+ votes from the db and count in php...