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6–Linux Driver Installation and Configuration
Linux Performance Tuning
6-10 NE0154601-00 A
Here is an example of iperf from the server side:
% iperf -s -w lM -1 16k
Here is an example of iperf from the client side:
% iperf -c <ipAddr of Server> -w 1M -P12 -l 16k -P<number of threads>
Optimization
Note the following:
PCIe x8 provides optimal performance for 10GbE.
MSI and MSI-X interrupts perform better than legacy interrupts.
Linux kernel versions 2.6.15 or later provide better performance
optimization.
Check CPU utilization on the host for CPU-bound bottlenecks.