Hyperthreading and schedulers [was Re: looking for a good sata or scsi raid 0/1 controller]

Glenn Dawson glenn at antimatter.net
Mon Apr 25 17:54:56 PDT 2005

At 05:33 PM 4/25/2005, Mike Tancsa wrote:
>I would start by turning off Hyperthreading as
>that only really works if you are using the ULE scheduler and thats
>broken under RELENG_5.

I haven't noticed this mentioned before.  Is using an SMP kernel on a 
system with a single P4 and SCHED_4BSD a waste of time? Is it 
detrimental?  I've never noticed any problems myself, but I never went 
looking for any either.


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