We are using ESXi 6.7 and we get single thread performance score upto 900 only if we run passmark cpu test.While the CPU Benchmark is 21000(Intel Xeon CPU E5-2699 V3). We have tried to enable IOMMU and disable Hyperthreading that does not seem to be helping out. Server OS is windows 2019 datacenter. Need help\suggestion to improve the single thread performance.
Have you got your BIOS optimised for high-performance (disabling C states, eg. C1E on Dell servers) and configured your hosts for high-performance rather than balanced mode?