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Cornelis Technical Documentation

6.2.1. Intel Xeon Scalable Processor

Cornelis Networks recommends consulting Intel’s tuning guide documentation appropriate for your generation of Xeon Scalable processor. In addition, the following recommendations help maximize CN5000 performance.

BIOS Setting

Value

Turbo Boost

Enabled

MaxPayloadSize1

Auto or 512

MaxReadReq1

4096

Snoop Holdoff Count/Snoop Timer2

0xC (16K)

NOTE:

  1. On some Intel platforms, peak bandwidth for microbenchmarks has been achieved by setting MaxPayloadSize=256 and MaxReadReq=256.

  2. Also known as Snooped Response Wait Time for Posted Prefetch in some BIOSes. This setting prevents occasional large drops in bandwidth during multi-core bandwidth tests on Intel platforms.