[BENCHMARK] 2.5.40{-mm1} with contest 0.42

[Con Kolivas]

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Here follow the latest benchmarks for 2.5.40 and 2.5.40-mm1:

noload:
Kernel                  Time            CPU%            Ratio
2.4.19                  67.7            98              1.00
2.5.38                  72.4            94              1.07
2.5.38-mm3              73.0            93              1.08
2.5.39                  73.2            93              1.08
2.5.39-mm1              73.0            94              1.08
2.5.40                  73.2            94              1.08
2.5.40-mm1              73.4            93              1.08

process_load:
Kernel                  Time            CPU%            Ratio
2.4.19                  110.8           57              1.64
2.5.38                  85.7            79              1.27
2.5.38-mm3              96.3            72              1.42
2.5.39                  88.9            76              1.31
2.5.39-mm1              99.0            69              1.46
2.5.40                  96.4            71              1.43
2.5.40-mm1              94.5            72              1.40

io_load:
Kernel                  Time            CPU%            Ratio
2.4.19                  216.1           33              3.19
2.5.38                  887.8           8               13.11
2.5.38-mm3              105.2           70              1.55
2.5.39                  229.4           34              3.39
2.5.39-mm1              239.5           32              3.54
2.5.40                  230.3           33              3.40
2.5.40-mm1              117.5           62              1.74

mem_load:
Kernel                  Time            CPU%            Ratio
2.4.19                  105.4           70              1.56
2.5.38                  107.9           73              1.59
2.5.38-mm3              117.1           63              1.73
2.5.39                  103.7           72              1.53
2.5.39-mm1              104.6           73              1.54
2.5.40                  103.0           73              1.52
2.5.40-mm1              111.3           67              1.64

Summary: 
2.5.40 shows no significant difference from 2.5.39 (except in process_load; 
now equivalent to 2.5.39-mm1 - the significance of which is not clear of it's 
importance)

2.5.40-mm1 shows a substantial improvement under IO load (consistent with the 
change in fifo_batch as discussed under the thread "[BENCHMARK] 2.5.39-mm1")
2.5.40-mm1 also shows a slight drop in performance under mem_load. Note of 
interest that both 2.5.38-mm3 and 2.5.40-mm1 which have fifo_batch set to 16 
instead of 32 have both better IO load performance, and worse mem_load 
performance - related?

Con
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