With the legacy kernel (2.6), HyperThreading was disabled by default for almost all deployments. (It was not disabled on high-end appliances.)
With the new kernel 3.10 for R80.20 ,R80.30 and R80.40, HyperThreading is set in and controlled by the BIOS (on or off).
Therefore, HyperThreading is on by default if it is enabled in the BIOS on these versions:
- R80.20/R80.30/R80.40 Security Management
- R80.20 Security Gateway 3.10
- R80.30 and higher versions
Note: HyperThreading does not support Open Servers. See sk93000.