IOWAIT & Load avg ?!?
Hello!
Can anyone explain the difference between IOWAIT%/IDLE%/LOAD AVG ??
We have a 3 servers (oracle rac) attached to a SAN. When we added another CPU to our 3rd server, the IOWAIT across the oracle rac dropped a lot. We used to get pretty high IOWAIT % before. So I don't really understand how the extra CPU could do this. I thought the IOWAIT % is high because the server is waiting for the SAN, so I thought the SAN was the bottleneck.
So I don't really understand the difference between the 3 things (iowait, idle and load avg).
Could anyone help me understand this? I've looked around the net, but not found any conclusive answers..
Appreciate the help in advance!
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