Here are contest (http://contest.kolivas.org) results using Linus' employer's
(http://www.osdl.org) hardware for the latest kernels.
no_load:
Kernel [runs] Time CPU% Loads LCPU% Ratio
2.5.70 1 79 94.9 0.0 0.0 1.00
2.5.70-mm8 1 78 93.6 0.0 0.0 1.00
2.5.72 1 79 94.9 0.0 0.0 1.00
2.5.72-mm1 1 78 93.6 0.0 0.0 1.00
2.5.72-mm2 1 77 94.8 0.0 0.0 1.00
cacherun:
Kernel [runs] Time CPU% Loads LCPU% Ratio
2.5.70 1 75 98.7 0.0 0.0 0.95
2.5.70-mm8 1 74 100.0 0.0 0.0 0.95
2.5.72 1 76 98.7 0.0 0.0 0.96
2.5.72-mm1 1 74 98.6 0.0 0.0 0.95
2.5.72-mm2 1 75 97.3 0.0 0.0 0.97
process_load:
Kernel [runs] Time CPU% Loads LCPU% Ratio
2.5.70 2 109 67.9 63.5 28.4 1.38
2.5.70-mm8 2 108 67.6 66.5 29.6 1.38
2.5.72 2 107 70.1 65.0 28.7 1.35
2.5.72-mm1 2 107 68.2 65.0 29.0 1.37
2.5.72-mm2 2 108 67.6 66.5 28.7 1.40
ctar_load:
Kernel [runs] Time CPU% Loads LCPU% Ratio
2.5.70 3 103 75.7 0.0 0.0 1.30
2.5.70-mm8 3 130 58.5 0.0 0.0 1.67
2.5.72 3 103 75.7 0.0 0.0 1.30
2.5.72-mm1 3 107 72.0 0.7 3.7 1.37
2.5.72-mm2 3 105 73.3 1.0 5.7 1.36
xtar_load:
Kernel [runs] Time CPU% Loads LCPU% Ratio
2.5.70 3 106 72.6 1.0 3.8 1.34
2.5.70-mm8 3 151 50.3 2.7 5.3 1.94
2.5.72 3 104 74.0 1.0 3.8 1.32
2.5.72-mm1 3 113 66.4 2.0 4.4 1.45
2.5.72-mm2 3 118 63.6 2.0 4.2 1.53
io_load:
Kernel [runs] Time CPU% Loads LCPU% Ratio
2.5.70 5 326 21.5 112.9 18.7 4.13
2.5.70-mm8 4 111 67.6 38.0 17.9 1.42
2.5.72 4 356 21.9 128.9 19.3 4.51
2.5.72-mm1 4 122 62.3 43.8 18.7 1.56
2.5.72-mm2 4 119 63.0 44.1 20.0 1.55
io_other:
Kernel [runs] Time CPU% Loads LCPU% Ratio
2.5.70 2 122 63.9 53.8 22.1 1.54
2.5.70-mm8 2 111 68.5 42.0 18.8 1.42
2.5.72 2 120 65.0 51.2 23.0 1.52
2.5.72-mm1 2 112 67.9 44.5 19.5 1.44
2.5.72-mm2 2 111 68.5 44.6 19.6 1.44
read_load:
Kernel [runs] Time CPU% Loads LCPU% Ratio
2.5.70 2 104 75.0 6.3 4.8 1.32
2.5.70-mm8 2 120 63.3 8.4 5.8 1.54
2.5.72 2 104 75.0 6.3 4.8 1.32
2.5.72-mm1 2 104 74.0 7.7 6.7 1.33
2.5.72-mm2 2 106 71.7 7.7 8.5 1.38
list_load:
Kernel [runs] Time CPU% Loads LCPU% Ratio
2.5.70 2 96 80.2 0.0 7.3 1.22
2.5.70-mm8 2 99 75.8 0.0 7.1 1.27
2.5.72 2 97 79.4 0.0 7.2 1.23
2.5.72-mm1 2 93 80.6 0.0 6.5 1.19
2.5.72-mm2 2 93 80.6 0.0 5.4 1.21
mem_load:
Kernel [runs] Time CPU% Loads LCPU% Ratio
2.5.70 2 97 80.4 53.5 2.1 1.23
2.5.70-mm8 2 125 61.6 63.5 2.4 1.60
2.5.72 2 95 82.1 54.0 2.1 1.20
2.5.72-mm1 2 111 69.4 53.5 1.8 1.42
2.5.72-mm2 2 111 69.4 53.5 1.8 1.44
dbench_load:
Kernel [runs] Time CPU% Loads LCPU% Ratio
2.5.70 5 321 22.1 4.0 44.5 4.06
2.5.70-mm8 4 274 27.4 3.8 47.8 3.51
2.5.72 4 397 19.6 5.5 50.4 5.03
2.5.72-mm1 4 333 22.5 4.2 44.7 4.27
2.5.72-mm2 4 328 22.6 4.5 48.0 4.26
2.5.72-mm* seems to have recovered ground cf 2.5.70-mm* on ctar_load,
xtar_load, read_load and list_load, with a small drop in dbench_load. Not
much difference b/w mm1 and mm2.
Con
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