A root password configured on your serverįirst, log in to your Atlantic.Net Cloud Server.A Linux server on the Atlantic.Net Cloud Platform.In this post, we will demonstrate a few methods to check and monitor CPU usage in Linux. There are several tools available for checking CPU usage in Linux. This will help you to debug system processes, manage system resources, and make system decisions. I'm running the latest Ubuntu 20.04 release (5.4.Monitoring the performance of the CPU is an essential task of any system administrator who needs to measure the performance of a system. How is this possible? Which calculation should I assume is more accurate? so it seems to me like top and /proc agree, that somehow, this process is using more CPU than the entire server. So, for the process, I think the calculation is just this: 3098 - 2809 = 289Īnd for the server, it should be this: 1970572 - 1970483 = 89 While the process is running on the server, I checked both of those virtual files:
I'm assuming that top is pulling from /proc/stat and /proc/pid/stat If this one process is using 7.6% CPU, how can the server be 96.8% idle? This is not a one-off misreporting, the CPU usage of the process in top is consistently 2-3x the usage for the entire server as reported in top. I only have 1 CPU listed in /proc/cpuinfo (and in /sys/devices/system/cpu/) I have a process that does a lot of sleeping, and I'm trying to understand its real impact on the server. The individual processes are relative to 1 vcpu, and the summary is relative to all vcpus. I'm familiar with how the top is supposed to work.
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