HEADS UP: Scheduler change

Chris Laverdure dashevil at sympatico.ca
Tue Sep 7 14:14:58 PDT 2004

On Tue, 2004-09-07 at 20:58, Scott Long wrote:
> All,
> In the interest of getting RELENG_5 stable and ready for 5.3, we are
> going to switch the scheduler in 6-CURRENT from SCHED_ULE to SCHED_4BSD.
> Tests are showing that the 4BSD is a bit more stable under load than
> ULE, and is a LOT morestable than ULE with PREEMPTION enabled.  This
> does not mean that ULE is being removed or that we have lost confidence
> in the direction and features of ULE.  By changing this we can focus on
> stability for the rest of the RELENG_5 cycle.  I'd encourage anyone who
> is interested in the ULE scheduler to talk to Julian Elischer and Jeff
> Roberson about what needs to be done with it.  Once 5.3 is released we
> can look at switching 6-CURRENT back to ULE if it makes sense.
> Scott

Wouldn't it make sense to have them list what needs to be done with it

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