Forum Discussion
per core CPU usage
Hi,
is there a way to pull details of per core CPU usage in Azure VM.
does the CPU usage differ from per core CPU usage.
Please share your inputs.
Thanks,
VJ
Hi iflyF16,
You can retrieve per-core CPU usage details for an Azure VM using Azure's monitoring tools. Follow these steps:
- Log in to the Azure Portal.
- Navigate to Virtual Machines and select your Azure VM.
- In the left menu, go to Monitoring and choose Metrics.
Concerning your second question, CPU usage and per-core CPU usage may differ.
CPU usage is typically presented as a percentage of the total capacity of a single CPU core. In multi-core systems, the percentage can exceed 100%, such as if 3 cores are at 60%, resulting in a total CPU usage of 180%.In contrast, per-core CPU usage provides the utilization for each individual core. This is valuable for understanding how your application utilizes specific cores. For instance, if one core is at 15% usage and another at 5%, it suggests varying levels of utilization across cores.
terminology - Difference between CPU Usage and CPU Utilization? - Stack Overflow
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Kindest regards,
Leon Pavesic
(LinkedIn)- Thanks for the detailed guidance on retrieving per-core CPU usage in Azure VMs through the Azure Portal's Monitoring tools. Your step-by-step instructions will be beneficial.
Regarding the distinction between CPU usage and per-core CPU usage, your explanation clarifies the difference for me. It's insightful to note that while CPU usage represents the overall load on all cores, per-core CPU usage delves into individual core utilization, offering a more nuanced understanding of workload distribution. This distinction is valuable for optimizing performance across specific cores based on application requirements. Great insights, much appreciated!
Yes, in Azure VMs, you can retrieve per-core CPU usage details using Azure Monitor or Performance Counters. Per-core CPU usage refers to the utilization of each processor core within the VM. This differs from overall CPU usage, which provides the combined utilization of all cores in the VM.
Monitoring per-core CPU usage helps assess the workload distribution across cores, enabling more precise performance analysis and optimization. Azure Monitor provides insights into individual core performance, allowing for a deeper understanding of resource utilization and potential bottlenecks. Utilizing Performance Counters, you can extract specific per-core CPU metrics for detailed analysis and troubleshooting.
