<div dir="ltr">Good posting Marcus. I will try to investigate further what our VMs are using , as we are only renting them and don&#39;t have host control.</div><div class="gmail_extra"><br><br><div class="gmail_quote">On Wed, Jun 25, 2014 at 11:37 AM, Markus Lindenberg <span dir="ltr">&lt;<a href="mailto:markus.lindenberg@gmail.com" target="_blank">markus.lindenberg@gmail.com</a>&gt;</span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">Hi Daniel, <div><br></div><div>I&#39;m running FreeSWITCH on KVM (Debian 7 Guest / Proxmox hosts and RHEL 6 hosts) without problems, even conferences and softfax (stuff where I assume timing is more critical) works very well. I exercised some caution when configuring the VM though, I don&#39;t know if all those things are necessary, best practice or even useful, but they result from some experience with strange timing in VMs:</div>


<div><br></div><div>I have set up mod_timerfd, although I don&#39;t know if it&#39;s any different from using enable-softtimer-timerfd in core:</div><div><br></div><div><div>freeswitch@default&gt; show timer </div><div>type,name,ikey</div>


<div>timer,soft,CORE_SOFTTIMER_MODULE</div><div>timer,timerfd,mod_timerfd</div></div><div><br></div><div>My guest kernel supports linking the guest clock source to the host, so I don&#39;t have any issues with clock drifting away and don&#39;t need NTP in the guest. Maybe this also affects FreeSWITCH&#39;s ability to keep time?</div>


<div><br></div><div><div>root@freeswitch:~# cat /sys/devices/system/clocksource/clocksource0/current_clocksource </div><div>kvm-clock</div></div><div><br></div><div>On systems that don&#39;t need the CPU power, I make sure only one virtual CPU exists and/or pin the guest CPUs to host CPUs.</div>


<div><br></div><div>Maybe the most useful thing to check is to switch the virtual NIC in KVM, I usually try to use virtio where possible, but hat strange issues before (like a DHCP Server VM not seeing DISCOVERs with virtio NIC while the same VM with e1000 worked fine). So, maybe try to switch NIC type and see if it helps. Currently I&#39;m using FreeSWITCH on both e1000 and virtio without issues. </div>


<div><br></div><div>Regards, Markus</div><div><br></div><div><br></div></div><div class="HOEnZb"><div class="h5"><div class="gmail_extra"><br><br><div class="gmail_quote">On Tue, Jun 24, 2014 at 3:45 PM, Daniel Ivanov <span dir="ltr">&lt;<a href="mailto:sertys@gmail.com" target="_blank">sertys@gmail.com</a>&gt;</span> wrote:<br>


<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">KVM virtual machines, running centos5</div><div><div><div class="gmail_extra">

<br><br><div class="gmail_quote">On Tue, Jun 24, 2014 at 2:55 PM, Brian West <span dir="ltr">&lt;<a href="mailto:brian@freeswitch.org" target="_blank">brian@freeswitch.org</a>&gt;</span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">What are you running on?<br>
<br>
Sent from my iPhone<br>
<div><br>
&gt; On Jun 24, 2014, at 7:41 AM, Daniel Ivanov &lt;<a href="mailto:sertys@gmail.com" target="_blank">sertys@gmail.com</a>&gt; wrote:<br>
&gt;<br>
&gt; I am running multiple FS nodes on virtualmachines and sometimes am getting choppy audio and network delays when network conditions are perfect. Do you think it&#39;s worth migrating the instances to bare metal and will i notice improvement in call quality?<br>




</div>&gt; _________________________________________________________________________<br>
&gt; Professional FreeSWITCH Consulting Services:<br>
&gt; <a href="mailto:consulting@freeswitch.org" target="_blank">consulting@freeswitch.org</a><br>
&gt; <a href="http://www.freeswitchsolutions.com" target="_blank">http://www.freeswitchsolutions.com</a><br>
&gt;<br>
&gt; FreeSWITCH-powered IP PBX: The CudaTel Communication Server<br>
&gt; <a href="http://www.cudatel.com" target="_blank">http://www.cudatel.com</a><br>
&gt;<br>
&gt; Official FreeSWITCH Sites<br>
&gt; <a href="http://www.freeswitch.org" target="_blank">http://www.freeswitch.org</a><br>
&gt; <a href="http://wiki.freeswitch.org" target="_blank">http://wiki.freeswitch.org</a><br>
&gt; <a href="http://www.cluecon.com" target="_blank">http://www.cluecon.com</a><br>
&gt;<br>
&gt; FreeSWITCH-users mailing list<br>
&gt; <a href="mailto:FreeSWITCH-users@lists.freeswitch.org" target="_blank">FreeSWITCH-users@lists.freeswitch.org</a><br>
&gt; <a href="http://lists.freeswitch.org/mailman/listinfo/freeswitch-users" target="_blank">http://lists.freeswitch.org/mailman/listinfo/freeswitch-users</a><br>
&gt; UNSUBSCRIBE:<a href="http://lists.freeswitch.org/mailman/options/freeswitch-users" target="_blank">http://lists.freeswitch.org/mailman/options/freeswitch-users</a><br>
&gt; <a href="http://www.freeswitch.org" target="_blank">http://www.freeswitch.org</a><br>
<br>
_________________________________________________________________________<br>
Professional FreeSWITCH Consulting Services:<br>
<a href="mailto:consulting@freeswitch.org" target="_blank">consulting@freeswitch.org</a><br>
<a href="http://www.freeswitchsolutions.com" target="_blank">http://www.freeswitchsolutions.com</a><br>
<br>
FreeSWITCH-powered IP PBX: The CudaTel Communication Server<br>
<a href="http://www.cudatel.com" target="_blank">http://www.cudatel.com</a><br>
<br>
Official FreeSWITCH Sites<br>
<a href="http://www.freeswitch.org" target="_blank">http://www.freeswitch.org</a><br>
<a href="http://wiki.freeswitch.org" target="_blank">http://wiki.freeswitch.org</a><br>
<a href="http://www.cluecon.com" target="_blank">http://www.cluecon.com</a><br>
<br>
FreeSWITCH-users mailing list<br>
<a href="mailto:FreeSWITCH-users@lists.freeswitch.org" target="_blank">FreeSWITCH-users@lists.freeswitch.org</a><br>
<a href="http://lists.freeswitch.org/mailman/listinfo/freeswitch-users" target="_blank">http://lists.freeswitch.org/mailman/listinfo/freeswitch-users</a><br>
UNSUBSCRIBE:<a href="http://lists.freeswitch.org/mailman/options/freeswitch-users" target="_blank">http://lists.freeswitch.org/mailman/options/freeswitch-users</a><br>
<a href="http://www.freeswitch.org" target="_blank">http://www.freeswitch.org</a><br>
</blockquote></div><br></div>
</div></div><br>_________________________________________________________________________<br>
Professional FreeSWITCH Consulting Services:<br>
<a href="mailto:consulting@freeswitch.org" target="_blank">consulting@freeswitch.org</a><br>
<a href="http://www.freeswitchsolutions.com" target="_blank">http://www.freeswitchsolutions.com</a><br>
<br>
FreeSWITCH-powered IP PBX: The CudaTel Communication Server<br>
<a href="http://www.cudatel.com" target="_blank">http://www.cudatel.com</a><br>
<br>
Official FreeSWITCH Sites<br>
<a href="http://www.freeswitch.org" target="_blank">http://www.freeswitch.org</a><br>
<a href="http://wiki.freeswitch.org" target="_blank">http://wiki.freeswitch.org</a><br>
<a href="http://www.cluecon.com" target="_blank">http://www.cluecon.com</a><br>
<br>
FreeSWITCH-users mailing list<br>
<a href="mailto:FreeSWITCH-users@lists.freeswitch.org" target="_blank">FreeSWITCH-users@lists.freeswitch.org</a><br>
<a href="http://lists.freeswitch.org/mailman/listinfo/freeswitch-users" target="_blank">http://lists.freeswitch.org/mailman/listinfo/freeswitch-users</a><br>
UNSUBSCRIBE:<a href="http://lists.freeswitch.org/mailman/options/freeswitch-users" target="_blank">http://lists.freeswitch.org/mailman/options/freeswitch-users</a><br>
<a href="http://www.freeswitch.org" target="_blank">http://www.freeswitch.org</a><br>
<br></blockquote></div><br></div>
</div></div><br>_________________________________________________________________________<br>
Professional FreeSWITCH Consulting Services:<br>
<a href="mailto:consulting@freeswitch.org">consulting@freeswitch.org</a><br>
<a href="http://www.freeswitchsolutions.com" target="_blank">http://www.freeswitchsolutions.com</a><br>
<br>
FreeSWITCH-powered IP PBX: The CudaTel Communication Server<br>
<a href="http://www.cudatel.com" target="_blank">http://www.cudatel.com</a><br>
<br>
Official FreeSWITCH Sites<br>
<a href="http://www.freeswitch.org" target="_blank">http://www.freeswitch.org</a><br>
<a href="http://wiki.freeswitch.org" target="_blank">http://wiki.freeswitch.org</a><br>
<a href="http://www.cluecon.com" target="_blank">http://www.cluecon.com</a><br>
<br>
FreeSWITCH-users mailing list<br>
<a href="mailto:FreeSWITCH-users@lists.freeswitch.org">FreeSWITCH-users@lists.freeswitch.org</a><br>
<a href="http://lists.freeswitch.org/mailman/listinfo/freeswitch-users" target="_blank">http://lists.freeswitch.org/mailman/listinfo/freeswitch-users</a><br>
UNSUBSCRIBE:<a href="http://lists.freeswitch.org/mailman/options/freeswitch-users" target="_blank">http://lists.freeswitch.org/mailman/options/freeswitch-users</a><br>
<a href="http://www.freeswitch.org" target="_blank">http://www.freeswitch.org</a><br>
<br></blockquote></div><br></div>