RED HAT ENTERPRISE VIRTUALIZATION: SCALING SAP EXECUTIVE SUMMARY The goal To demonstrate that SAP workloads can be effectively virtualized using Red Hat Enterprise Virtualization, allowing organizations to take advantage of the benefits of virtualization without compromising on performance and scalability. Why should I care? SAP is the world's leading provider of business software, with over 85,000 customers depending on SAP solutions to manage their business operations. What was tested? What was the result? Red Hat Enterprise Virtualization scaled well, with low overhead costs of virtualizing multiple hosts and multiple virtual CPUs. Red Hat Enterprise Virtualization exhibited up to 95% of bare metal performance with SAP. SAP is designed to make use of memory and multiple CPUs, and therefore any loss of performance due to consolidation reflects both the efficiency of the hypervisor platform as well as the efficiency of the SAP code. In Red Hat's testing, performance nearly comparable to bare metal (up to 95%) can be achieved by scaling the number of guests and vCPUs. SAP SCALES UP LINEARLY FROM 1-4 X 2 VCPU GUESTS. VIRTUALIZATION EFFICIENCY UP TO 95% OF BARE METAL PERFORMANCE. The performance of SAP Server was measured on the Red Hat Enterprise Virtualization hypervisor running on an Intel server with 16 logical CPUs. Red Hat Enterprise Virtualization exhibited excellent scaling and performance across multiple configurations. Scale-up of a single VM with 2, 4, or 8 vCPUs yields up to 100% of expected maximum performance. Scaling up multiple VMs with multiple vCPUs on a single host also exhibits minimal loss of performance due to virtualization overhead. Scale-out of multiple virtual guests on a single host demonstrated up to 95% of bare metal performance using 8 x 2 vCPU guests or 4 x 4 vCPU guests and 86% of bare metal with 2 x 8vCPU guests.
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