[dnsdist] dnsdist capacity

[Alexey Bokhanovskiy]

Hello dnsdist Team,
We need your help 😊
We found dnsdist very useful and interesting solution for very big network.
Now we are using two DNS loadbalancers with seven servers powerdns and we found that the capacity loadbalancer has limit approximately 50k qps
Our version of dnsdist is 1.3.3-1pdns.bionic.
Is 50kqps the limit of software or hardware? Or need to additional configuration?
For DNS Loadbalancers we are using two the same HP GL-380e G8 servers:
Architecture:        x86_64
CPU op-mode(s):      32-bit, 64-bit
Byte Order:          Little Endian
CPU(s):              32
On-line CPU(s) list: 0-31
Thread(s) per core:  2
Core(s) per socket:  8
Socket(s):           2
NUMA node(s):        2
Vendor ID:           GenuineIntel
CPU family:          6
Model:               45
Model name:          Intel(R) Xeon(R) CPU E5-2650 0 @ 2.00GHz
Stepping:            7
CPU MHz:             1973.499
CPU max MHz:         2000.0000
CPU min MHz:         1200.0000
BogoMIPS:            3989.88
Virtualization:      VT-x
L1d cache:           32K
L1i cache:           32K
L2 cache:            256K
L3 cache:            20480K

Best Regards,
Alexey Bokhanovskiy


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