Does the host OS make a difference?


I have been using RedHat based distro’s as far as I can recall. Asterisk always seemed to wonky in my particular use case once I added on a lot of calls. I was recently testing a different issue on Asterisk using Debian 12 and I was surprised at how the CPU remained extremely consistent. Has anyone tried measuring the same call flow on different distro’s? Are my eyes decreeing me or could there be something to this?



I’m currently testing / analyzing Rocky 9 as follow up to CentOS 7 (basic system configuration - early stage - without any asterisk involved yet).

What I can say until now: Rocky 9 is compared to CentOS 7 extremely “laggy”. I’m testing on a quasi embedded device (rather low CPU performance). This directly shows any problem on operating system side, because they are not whitewashed by hardware power.
I was able to solve one really nasty problem. But I wasn’t able to solve the global lagginess until now and I have no idea at the moment, which screw to turn to fix it.

What does it mean: Your perception doesn’t seem wrong to me. If I’m not able to fix the global lagginess, I will test suse at next.

I compiled Asterisk 20 on Debian 12 and I’m not seeing any performance issues or lag. Also this is a vert image using QEMU/KVM with a Debian 9 host with an assigned 6 cores and 16GB ram. Your server does matter.

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