[asterisk-users] asterisk and Hyper-V
Dmitriy Ermakov
demonihin at gmail.com
Mon Dec 18 04:26:30 CST 2017
Ok. I am sorry, I don't have any more ideas(
Please, send here email with your testing results.
On 12/18/2017 01:22 PM, Kseniya Blashchuk wrote:
> To be honest we are a bit afraid to set 100% )), but we have tried to
> set 90% - no luck. I have also tested with 4.8 and 4.11 kernels - same
> results. I will try with Centos 6 and kernel 3.10 to check if
> something changes. VSwitch shows 1-2% load on the interfaces, and this
> host is not overloaded at all, so I don't think the VM has some lack
> of resources.
>
> пн, 18 дек. 2017 г. в 13:07, Dmitriy Ermakov <demonihin at gmail.com
> <mailto:demonihin at gmail.com>>:
>
> I am using CentOS 6, kernel 3.10 from elrepo.org
> <http://elrepo.org> kernels (3.10.102-1.el6.elrepo.x86_64).
> Asterisk version is 11.21.2 and Asterisk 13.X.X (I can't get it's
> version now).
>
> Is it possible that your network switches' interfaces which are
> connected to Hyper-V Server are 100% busy?
> It is possible that my installation works well because my Hyper-V
> server is not high-load server so it has plenty free CPU, Disk,
> Memory, Network resources to give them to Asterisk VM.
>
> Kseniya, could you try to reserve 100% of virtual CPUs for
> Asterisk VM (just to test this configuration)?
>
>
> I am sorry I don't have free hardware and time to test your Ubuntu
> 16, asterisk 13.1, kernel 4.4.0-104 configuration(
>
> On 18 Dec 2017 12:09 p.m., "Kseniya Blashchuk" <ksyblast at gmail.com
> <mailto:ksyblast at gmail.com>> wrote:
>
> Dmitry, are you using CentOS? What kernel version are you
> using? I will try with the same to see if it can be also a
> kernel-related issue.
>
> пн, 18 дек. 2017 г. в 11:35, Kseniya Blashchuk
> <ksyblast at gmail.com <mailto:ksyblast at gmail.com>>:
>
> Thank you for a quick answer, Dmitry!
>
> We have tried the settings you suggested but nothing
> helped. The machine is running 4.4.0-104 kernel, 4
> cores, Intel(R) Xeon(R) CPU E5-2620 v3 @ 2.40GHz,
> clocksource is hyperv_clocksource_tsc_page, timing module
> is res_timing_timerfd.so. We have also tried to set 50%
> Reserve - no luck :(.
>
> пн, 18 дек. 2017 г. в 10:49, Dmitriy Ermakov
> <demonihin at gmail.com <mailto:demonihin at gmail.com>>:
>
> Hi, Kseniya!
>
> I have three installations of Asterisk (as FreePBX but
> I think it is not important). They work fine.
>
> I have made some settings in Asterisk and Hyper-V:
>
> Asterisk: timing interface - timerfd.
>
> Hyper-V:
>
> 1. Virtual Machine => Network Adapter => Hardware
> Acceleration => Virtual Machine Queue - Disable it;
> 2. Virtual Machine => Processor => Virtual Machine
> Reserve (percentage) - set at least 25% (if you
> have 4 virtual cores for your Asterisk). You can
> try to set reserve more or less then 25% - test it
> and, please, send email here;
> 3. Virtual Machine => Integration Services => Time
> synchronisation - enable it.
>
> This settings helped me.
>
> Also check your Linux Kernel version - it must be 3.10
> or newer. I saw very bad "timing test" results on
> kernel 2.6.32.
>
>
> On 12/18/2017 10:26 AM, Kseniya Blashchuk wrote:
>> Hi all!
>> Does anybody have experience with asterisk on
>> Hyper-V? My test setup with Ubuntu 16 and asterisk
>> 13.1 (ubuntu repo) shows sound distortion. I have
>> analyzed the RTP flow with wireshark and I see high
>> skew and delta values when the traffic leaves the
>> hypervisor, however everything is okay when a capture
>> is taken from a VM itself. I have read that there can
>> be timing problems with Hyper-V. I have tried to
>> disable time sync with the machine and tried
>> different clocksources. I have also tried to change
>> asterisk timing interface to dahdi (dummy) - nothing
>> helped so far. Hyper-V version is 12p2.
>> Does anybody have a working setup with Hyper-V?
>>
>>
>>
>
> --
> С уважением, Дмитрий Ермаков
>
> --
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>
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>
> --
> _____________________________________________________________________
> -- Bandwidth and Colocation Provided by
> http://www.api-digital.com --
>
> Check out the new Asterisk community forum at:
> https://community.asterisk.org/
>
> New to Asterisk? Start here:
> https://wiki.asterisk.org/wiki/display/AST/Getting+Started
>
> asterisk-users mailing list
> To UNSUBSCRIBE or update options visit:
> http://lists.digium.com/mailman/listinfo/asterisk-users
>
> --
> _____________________________________________________________________
> -- Bandwidth and Colocation Provided by http://www.api-digital.com --
>
> Check out the new Asterisk community forum at:
> https://community.asterisk.org/
>
> New to Asterisk? Start here:
> https://wiki.asterisk.org/wiki/display/AST/Getting+Started
>
> asterisk-users mailing list
> To UNSUBSCRIBE or update options visit:
> http://lists.digium.com/mailman/listinfo/asterisk-users
>
>
>
--
С уважением, Дмитрий Ермаков
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