For network devices if the CPU utilization is high, packet drop is inevitable. However, when the CPU utilization spikes over 80 percent too often, the CPU tends to process the requests at a lower speed than desirable and drops requests, leading to a sluggish CPU performance. If this happens occasionally, say for an adhoc application run or a team video conference call, it is understandable. Even then, most servers will run to 90 percent to 98 percent on average, where the CPU is considered to be fully used. However, depending on the application's requirement for an enterprise network, about 70 to 100 percent of the CPU is supposed to run CPU-exhausting activities on an average. Apart from this, monitoring based on hardware metrics such as CPU temperature monitor will be an added advantage, as it gives more insights into the CPU's performance.Ī typical office desktop might consume only 30 percent of the CPU usage. High CPU usage can also cause high memory utilization issues that can cause a server to go down. If CPU usage spikes up, the user interface of that server will eventually slow down, and multiple process will crash along with the application running on that server, creating an avalanche effect. It's the primary value to analyze to determine the processing speed of applications, which is a key performance indicator of network and server health. CPU usage is one of the most important performance metrics in server monitoring.
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