I've got a test server with OpenBSD-3.8 on it (GENERIC except with RAIDFRAME support) and considering the hardware, it does pretty well with NFS performance. However, I've noticed that when under heavy NFS load, it becomes nearly unresponsive. Shell sessions take 2-6 seconds to respond, and top updates stretch out for several seconds as well.
Is this normal behavior (trading latency for throughput)? or is there something else going on? Are there common pitfalls with regard to OpenBSD kernel tuning and latency? thanks for any ideas, Dave
