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MikroTik App
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Posts: 35
Joined: Tue Dec 06, 2005 3:14 pm

Maximum DNS query/s

Thu Nov 24, 2016 6:06 pm

I have question about DNS cache performance.
How much DNS query per second can handle ROS?
Its some SW limitation in ROS or can use all resources up to 100% CPU?
And can use only one CPU or all CPUs in system?

Thanx for answer.

Martin Cerny
chairman of Oslavany.NET
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Posts: 6969
Joined: Mon Jun 08, 2015 12:09 pm

Re: Maximum DNS query/s

Thu Nov 24, 2016 7:03 pm

I think there is a maximum of 100 pending upstream queries at the same time. So, when you get a lot
of cache misses and your upstream DNS is slow you may hit that limit.

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