What Would Happen if CPU Load Average is High

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http://stackoverflow.com – I read some articles about the CPU load average. They were talking about the definition, the differences between the CPU usage, and the optimal value (roughly equals to the number of cores). They also mentioned that if the number is high, you will be in trouble (waking up at mid-night etc.), but what would actually be happening if the number is high? For example, I have been running 4, 6 and 8 sessions on a 4 core Linux server. Although the time it took to finish the task were different (4 fasted, 8 slowest), the results seem OK. The CPU load averages were roughly 4, 8 and 10. I understand th (HowTos)