ISC DHCP limitation observed while load testing with dhcperf
Amit Jathar
amit.jathar at alepo.com
Thu May 30 14:30:11 UTC 2013
Hi,
I am performing load test of ISC - DHCP.
The DHCP server is handling only 30TPS till now.
I am using following dhcperf command :-
dhcperf --server x.x.x.x --discover --retain-leases --test-load 50 --test-duration 60
I have ran series of tests as follows :-
tx/sec (TPS)
Duration (sec)
Success Rate (%)
100
60
11.7
100
60
12
50
300
36.7
30
300
97.5
30
150
99.8
30
600
96.4
30
60
100
2 clients - 30TPS each
60
40% each
The above table implies that when there is one perf client sending 30 TPS, servers handles perfectly.
But, when I increase TPS or add one more perf client with 30 TPS, the server performance degrades.
This concludes that the DHCP server can handle only 30 TPS.
Can you please share your experiences on load test with dhcperf , if you are getting more TPS than this.
Also let me know if I can do any kind of optimization to achieve more TPS.
I have defined only one pool in the dhcpd.conf & I don't see there is any other configuration available regarding load testing.
Thanks,
Amit
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