[BENCHMARK] reaim 2x,4x,8x with various SMP balancing patches

[BENCHMARK] reaim 2x,4x,8x with various SMP balancing patches

[Con Kolivas]

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With the help of the OSDL hardware I've thrown a bootload of reaim benchmarks 
at these various patches because of the confusion regarding their usefulness. 
2.6.0-test5 is the baseline, and the 3 unique patches CMT,A3,BT were added by 
themselves and all together to 2.6.0-test5 for comparison. Finally the full 
2.6.0-test5-mm1 patch was compared. The A3 patch was modified slightly to 
overcome the one minor magnitude error for fairness. Looking at the url for 
each benchmark and examining the "Graph - Jobs per minute" is useful to 
assess where the performance hovers. 


Legend

260t5 - vanilla 2.6.0-test5
CMT - sched-CAN_MIGRATE_TASK-fix.patch
A3 - sched-2.6.0-test2-mm2-A3.patch
BT - sched-balance-tuning.patch
all - CMT + A3 + BT
mm1 - 2.6.0-test5-mm1


2 CPU:

Kernel	Throughput	URL
260t5	1337.11		http://khack.osdl.org/stp/279474/
CMT	1321.92		http://khack.osdl.org/stp/279796/
A3	1304.82		http://khack.osdl.org/stp/279799
BT	1326.27		http://khack.osdl.org/stp/279802
All	1337.79		http://khack.osdl.org/stp/279805/
mm1	1316.95		http://khack.osdl.org/stp/279588/


4 CPU:

Kernel	Throughput	URL
260t5	5406.68		http://khack.osdl.org/stp/279883
CMT
A3	5099.14		http://khack.osdl.org/stp/279800
BT	5721.79		http://khack.osdl.org/stp/279803
All	4919.36		http://khack.osdl.org/stp/279806
mm1	5360.32		http://khack.osdl.org/stp/279887


8 CPU:

Kernel	Throughput	URL
260t5	8812.21		http://khack.osdl.org/stp/279448/
CMT	8794.14		http://khack.osdl.org/stp/279798
A3	7084.15		http://khack.osdl.org/stp/279801
BT	8615.13		http://khack.osdl.org/stp/279804
All	7629.14		http://khack.osdl.org/stp/279919
mm1	8478.10		http://khack.osdl.org/stp/279562/


4xCMT seemed to not successfully finish.

In summary, it appears that all the patches cause detriment to performance, 
except the combination of BT with 4 cpus. The A3 patch is particularly 
detrimental, but it is reassuring to see that the extra patches in mm1 (which 
includes O1int patches) recover a lot of that performance, even with the 
other balancing patches.

Con
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