On 1 December 2013 13:20, Lukas Tribus <luky...@hotmail.com> wrote: > I'm not sure what libvirt exactly does and how/why it affects performance
I don't believe libvirt is the issue, as it's merely an orchestration abstraction over the top of a variety of hypervisors. I think XuXinkun merely means s/he's running under virtualisation, and is surprised at the performance degradation observed in that setup. XuXinkun - the extent to which your performance will degrade when running under virtualisation will not only depend on coarse factors such as the hypervisor used and the resource allocation you specify, but also on a *wide* array of low-level tuning parameters at the hypervisor, network IO, disk IO, kernel, application and HAProxy levels. I'm not the best person to help you with tuning these - others on list may choose to. I *strongly* (STRONGLY!) suggest you browse this list's archives to find information that's come up in the past on this exact topic. This list is archived in a few different places - once such place is here: http://marc.info/?l=haproxy Regards, Jonathan -- Jonathan Matthews Oxford, London, UK http://www.jpluscplusm.com/contact.html
