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Upon generating sar and sar -q, the runq-sz are quite high but the CPU loading is low.
The amount of processes waiting for runtime is actually quite low (I think you formatted your listings wrong) but there are a few spikes where it goes up to 10, 11 but only a few correlate with kernel CPU spikes (and exactly one point where runq-sz + system + iowait line up). At 9:25 things go bezerk as userland applications start to hog CPU and don't relinquish their hold. I don't think the machine is CPU-bound, I think the real problem starts because you put all network-intensive applications with different requirements (
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