--- title: "Step 4. Choose How to Assess VM Performance" description: "Use the Performance Modeling Based On list to define whether the report will use maximum (peak) or average CPU historical values to assess VM performance." canonical: "https://helpcenter.veeam.com/docs/mp/hyperv_guide/choose_undersized_vms_report_assessment_options.html" breadcrumb: "Veeam MP for Microsoft Hyper-V User Guide > Veeam MP for Hyper-V Reports > Veeam MP for Hyper-V Analysis Reports > Virtual Machines. Right-sizing — VMs Undersized for Memory and CPU > Step 4. Choose How to Assess VM Performance" dateModified: "2026-09-10" --- # Step 4. Choose How to Assess VM Performance Use the **Performance Modeling Based On** list to define whether the report will use maximum (peak) or average CPU historical values to assess VM performance. [![Choose How to Assess VM Performance](images/undersized_vms_report_assessment.png "Choose How to Assess VM Performance")](images/undersized_vms_report_assessment.png){.toggle scale=65}