[Freeswitch-users] Virtualized FreeSWITCH
rob4manhere at gmail.com
Tue Mar 2 21:04:46 PST 2010
Is anyone running FreeSWITCH virtualized (xen or vmware) in
production? I saw ec2 and xen mentioned a few places. If so, are
there tips or tricks for handle timer issues which affect virtual
machines in general, such as recommended divider or clocksource
settings? I'm seeing funny timing issues while testing with audio
recording and playback that speed up or slow down.
I have tried both paravirt and hvm. The default xen kernel has a
timer of 250, so I tried to hvm instead using the stock 5.3 kernel
with the 1khz timer but didn't see much improvement.
All of this was tested on 64-bit CentOS 5.3.
- Physical host: Linux localhost.localdomain 2.6.18-164.11.1.el5xen #1
SMP Wed Jan 20 08:06:04 EST 2010 x86_64 x86_64 x86_64 GNU/Linux
- Paravirt host: Linux localhost.localdomain 2.6.18-128.el5xen #1 SMP
Wed Jan 21 11:12:42 EST 2009 x86_64 x86_64 x86_64 GNU/Linux
- Hvm host: Linux localhost.localdomain 2.6.18-128.el5 #1 SMP Wed Jan
21 10:41:14 EST 2009 x86_64 x86_64 x86_64 GNU/Linux
I'm sure physical hosts are the de-facto best practice, but are
virtual machines not worth it at all?
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