Re: Scheduler fairness problem on 2.6 series (Attn: Nick Piggin and others)

[Peter Williams <pwil3058@bigpond.net.au>]

spaminos-ker@yahoo.com wrote:
> I tried the actual server with a stress test, and I do eventually get timeouts.
> 
> I tried with what seemed to be the best setup earlier:
> pb mode
> max_ia_bonus set to 0
> 
> I tried several values for base_promotion_interval but the system eventually
> times out after a few hours (it's still better than it used to be, with a stock
> kernel, it timeouts in less than an hour).

Could you try it in "pb" mode with both max_ia_bonus and max_tpt_bonus 
set to zero?  That will disable all "priority" fiddling and tasks should 
just round robin at a priority determined solely by their "nice" value 
and since (according to your earlier mail) all the daemons have the same 
"nice" value they should just round robin with each other.

Thanks
Peter
-- 
Peter Williams                                   pwil3058@bigpond.net.au

"Learning, n. The kind of ignorance distinguishing the studious."
  -- Ambrose Bierce