Reasons for High CPU Usage

High CPU is one of the common bottlenecks found during performance testing. High utilization of CPU may occur in any type of performance test. Here, I am not referring to the low or high timely CPU spikes which come rarely. I am pointing to the high CPU utilization which lasts till the test ends or sometimes even after the test completion. There could be multiple reasons which make such type of situation.

I found an informative article which describes the possible and most common causes of high CPU utilization. I would suggest to save these causes in your memory because in future when you try to resolve the bottleneck related to high CPU utilization then this learning could be a key treasure for you.

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