[Freeswitch-users] VMWare voice quality

[John Nicholson]

I think the problem with changing the CPU's is off your going from a single
to multi, or multi to single CPU and not adjusting the kernel from SMP to
normal or vise versa?
I've got a nice ESXi farm at the moment (32 cores, 48 gigs of ram) thats
running at under 5% usage.  Haven't noticed any timing issues yet with FS,
but haven't put it under any type of load yet.

Thanks for the release, I'll see if i can get you some feedback.


On Thu, Jan 15, 2009 at 2:23 PM, Chav Paskov <chavpaskov at shaw.ca> wrote:

> Michael Collins wrote:
> > If anyone figures this out please post it to this thread. I am working
> > on a wiki page for the VMWare appliance and I would like to be able to
> > inform people on how to handle this situation.
> >
> > Also, IIUC, those running VMWare Fusion on Macs are not experiencing
> > this, correct? What about those using a hypervisor like ESXi? Any
> > known issues?
> >
> > Thanks,
> > MC
> >
> > On Thu, Jan 15, 2009 at 9:15 AM, Ken Rice <krice at suspicious.org> wrote:
> >
> >> On 1/15/09 11:01 AM, "Remko Kloosterman" <R.Kloosterman at mtel.nl> wrote:
> >>
> >>
> >>> Hello Ken, hello all,
> >>>
> >>> I just read about the FreeSWITCH VMware applicance. I'm curious about
> >>> your experiences with the audio quality on VMWare, so here's a new
> >>> thread.
> >>>
> >>> I've installed freeswitch on VMware Server for Windows. The IVR audio
> >>> always plays choppy, while the server itself has no performance issues.
> >>> The same poor voice quality also goes for Asterisk or Yate, even on a
> >>> very fast VMware ESX system.
> >>>
> >>> Did you experience the same and/or do you have pointers on how to
> >>> troubleshoot and fix this?
> >>>
> >> There is a high resolution timer you need to enable on vmware... I'm not
> >> familiar enuff with all the versions of vmware to advise there that
> switch
> >> is, but they have a couple of articles on it in their knowledge base
> >>
> >>
> >>
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> >
> Hi All,
> I'm using freeswitch in production environment running on ESXi . I have
> no issues with voice /probably because simply i leave the media to flow
> between endpoints/ . Performance is amazing and i'd recommend this setup
> to everybody.
> it is important though when you set your VM on ESXi to set in advance
> the number of CPUs. Changing # of CPUs later might affect your
> performance. My recommendation is NOT to use VMWARE server  on top of
> other OS. ESXi  as hipervisor is  linux in its core that provides you
> with enough access to the HW and nothing more so the overhead is as
> minimal as possible /while this is not the case fro VMware server - it
> needs underlaying  OS and so on/.
> I hope this info helps.
> If anybody is interested  i'd be glad to share me experience  on his
> matter.
> Best Regards
> Chav
>
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