"As far as my testsystem goes, v2.6.23 beats v2.6.22.9 in sysbench," explained Ingo Molnar in response to a posting showing the opposite results. He referred to his own testing results and explained:

"As you can see it in the graph, v2.6.23 schedules much more consistently too. [ v2.6.22 has a small (but potentially statistically insignificant) edge at 4-6 clients, and CFS has a slightly better peak (which is statistically insignificant)."

Ingo noted that he was nuable to find information as to how the other benchmark was generated, "there are no .configs or other testing details at or around that URL that i could use to reproduce their result precisely, so at least a minimal bugreport would be nice." He then offered some tips on how sysbench works and some suggested tunings, "sysbench is a pretty 'batched' workload: it benefits most from batchy scheduling: the client doing as much work as it can, then server doing as much work as it can - and so on. The longer the client can work the more cache-efficient the workload is. Any round-trip to the server due to pesky preemption only blows up the cache footprint of the workload and gives lower throughput."