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Hi all

The OSDL robot monkeys revealed a massive reproducible regression in the 
dbt3-pgsql benchmark which could be related to MBligh's measure regression.


2.6.7-rc2: http://khack.osdl.org/stp/293625/
Composite 	Query Processing Power 	Throughput Numerical Quantity
199.38 	152.52 	260.63

vs

2.6.7-rc3: http://khack.osdl.org/stp/293704/
Composite 	Query Processing Power 	Throughput Numerical Quantity
152.13 	146.36 	158.12


with a little bit of detective work and help from Wli we tracked down that 
this patch caused it:
[PATCH] sched: improve wakeup-affinity
A massive increase in idle time was observed and the throughput dropped by 40%
Reversing this patch gave these results:

backsched1: http://khack.osdl.org/stp/293865/
Composite 	Query Processing Power 	Throughput Numerical Quantity
193.93 	145.95 	257.67


It may be best to reverse this patch until the regression is better 
understood.
Here is a patch reversing it:

Con
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