Thorolf Godawa wrote: > Unfortunately I think (and this is also my experience), a virtualized > Asterisk server will not work on higher load and might loose > UDP-VoIP-pakets what will result in a bad voice quality!
Much has been said of this topic. In general, you are correct; the effects of mostly userspace scheduling on timing tolerance and system responsiveness in a classical virtualisation scenario can lead to more jitter and stochastic variance in packet forwarding, even if not necessarily packet loss per se. However, virtualisation technology is evolving in directions that make it increasingly "natively" bound to the underlying hardware - i.e. paravirtualisation. Running Asterisk in a VZ-style VPS is very different than running it in a Xen VM slice, for example, because in the former case it is basically a glorified chroot jail; there is a shared underlying kernel and simulated process space isolation. In the latter, an actual virtual machine is run, although it is still native-bound to some degree in that it is not a pure userspace-scheduled process. So, the answer is somewhat qualified; it depends on what is meant by "generalisation." -- Alex -- Alex Balashov - Principal Evariste Systems Web : http://www.evaristesys.com/ Tel : (+1) (678) 954-0670 Direct : (+1) (678) 954-0671 _______________________________________________ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users