I am using CentOS 6, kernel 3.10 from 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" <ksybl...@gmail.com <mailto:ksybl...@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 <ksybl...@gmail.com <mailto:ksybl...@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 <demoni...@gmail.com <mailto:demoni...@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 -- _____________________________________________________________________ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- Check out the new Asterisk community forum at: https://community.asterisk.org/ <https://community.asterisk.org/> New to Asterisk? Start here: https://wiki.asterisk.org/wiki/display/AST/Getting+Started <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 <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/ <https://community.asterisk.org/> New to Asterisk? Start here: https://wiki.asterisk.org/wiki/display/AST/Getting+Started <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 <http://lists.digium.com/mailman/listinfo/asterisk-users>
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