VolanoMark 2.1.2 - VolanoMark 10/100 Loopback Test of 2.4.4 and 2.4.4 MQ Scheduler Kernel

Bill Hartner, IBM Linux Technology Center, hartner@austin.ibm.com

The VolanoMark 10/100 loopback test was ran to compare the 2.4.4 and 2.4.4+MQ Scheduler kernels.

More information on the MQ scheduler can be found at http://lse.sourceforge.net/scheduling/

The MQ Scheduler patch improved message throughput considerably.

On a 8P system, message throughput increased by 147 % from 18,678 msg/s to 46,167 msg/s.
On a 4P system, message throughput increased by  32 % from 22,331 msg/s to 29,440 msg/s.

The throughput from 4P to 8P no longer scales negatively.

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