10/22/2023 0 Comments Ubuntu server check cpu usage![]() ![]() Use the newest version of hypervisor software, and enable CPU-saving features such as TCP Segmentation Offload, large memory pages, and jumbo frames.Two of the most important factors displayed by the top command are:.Upgrade the physical CPUs on the host if necessary.If the host is in a DRS cluster, increase the number of hosts and migrate one or more virtual machines onto the new host. If the host is not already in a DRS cluster, add it to one.But the ESXi's maintenance of the three idle vCPUs takes CPU cycles that could be used for other work. For example, a single-threaded application on a four-way virtual machine only benefits from a single vCPU. Reduce the number of virtual CPUs on a virtual machine to only the number required to execute the workload.Virtual machines with smaller resource allocations generally accumulate more CPU ready time. ![]() ![]() This might lower disk I/O and/or network traffic, which could in turn reduce CPU utilization. This can potentially decrease disk and/or network activity for applications that cache. Increase the amount of memory allocated to the virtual machine.If the host ready time does not decrease, set the CPU reservations for high-priority virtual machines to guarantee that they receive the required CPU cycles. The total ready time on the host might remain at the same level if the host system is constrained by CPU. Increase the CPU shares to give the virtual machine more opportunities to run.If so, increase the CPU limit on the virtual machine. Determine whether the high ready time for the virtual machine resulted from its CPU usage time reaching the CPU limit setting.The stacked bar chart on the host's Virtual Machine view shows the CPU usage for all virtual machines on the host. Compare the CPU usage value of a virtual machine with the CPU usage of other virtual machines on the host or in the resource pool.Verify that VMware Tools is installed on every virtual machine on the host. ![]()
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