[poll] hyperthreading_allowed, hlt_logical_cpus, mp_watchdog

[Ivan Voras]

On 24/05/2011 15:21, Andriy Gapon wrote:
>
> I am planning on some changes in head and would like to see if people use the
> following features:
> - machdep.hyperthreading_allowed tunable and sysctl
> - machdep.hlt_logical_cpus tunable and sysctl
> - mp_watchdog kernel option
>
> If you are using any of the above, please let me know - better via a private reply:
> - which exactly of the mentioned above features you use
> - please make distinction between use of tunables and sysctls
> - tell for what you use the feature
> - provide overview of your hardware, which scheduler you use and intended purpose
> of the system

Whatever you do, please leave at least some way (at least a tunable) to 
enable/disable HTT - some workloads are better with, and some without 
it, and some BIOSes are unreliable in enabling/disabling it :)