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Performance Optimizations in VMware vSphere 7.0 U2 CPU Scheduler for AMD EPYC Pr...

 4 years ago
source link: https://blogs.vmware.com/performance/2021/03/vsphere70u2-cpu-scheduler-amd-epyc-processors-performance.html
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CPU scheduler Performance Virtualization vSphere

Performance Optimizations in VMware vSphere 7.0 U2 CPU Scheduler for AMD EPYC Processors

March 24, 2021

VMware vSphere 7.0 U2 includes a CPU scheduler that is architecturally optimized for AMD EPYC. This scheduler is designed to take advantage of the multiple last-level caches (LLCs) per CPU socket offered by the AMD EPYC processors.

A new technical paper shows that vSphere 7.0 U2 can achieve near optimal performance with this new CPU scheduler using out-of-the-box BIOS options and vSphere settings. An extensive performance evaluation using both enterprise benchmarks and microbenchmarks shows that the CPU scheduler in vSphere 7.0 U2 achieves up to 50% better performance than 7.0 U1 when testing with AMD EPYC 7702 and 7742 processors, codenamed “Rome” and “Milan.

For more information, see Performance Optimizations in VMware vSphere 7.0 U2 CPU Scheduler for AMD EPYC Processors.

Qasim Ali

Qasim Ali is a Staff Engineer at VMware R&D in the Performance team. His interests include hypervisor performance, optimizing resource management, e.g., power, memory and CPU. Mr. Ali graduated with…


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