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SMT (HyperThreading) is enabled after an upgrade to R80.40 or higher Technical Level
Symptoms
  • SMT (HyperThreading) is enabled after an upgrade to R80.40 or higher.

Cause

Starting from Linux Kernel version 3.10 (R80.40 and higher), SMT (HyperThreading) is enabled by default in BIOS and users cannot disable it from the 'cpconfig' menu.

Examine this table in sk93000 to determine if SMT is enabled by default on your appliance model.


Solution

To disable SMT (HyperThreading), use one of these options:

This solution has been verified for the specific scenario, described by the combination of Product, Version and Symptoms. It may not work in other scenarios.

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