Here are UP and SMP contest benchmarks for 2.5.50:
UP:
noload:
Kernel [runs] Time CPU% Loads LCPU% Ratio
2.4.19 [5] 67.2 97 0 0 1.01
2.4.20 [5] 67.3 97 0 0 1.01
2.5.49 [5] 70.0 96 0 0 1.05
2.5.50 [5] 69.9 96 0 0 1.05
cacherun:
Kernel [runs] Time CPU% Loads LCPU% Ratio
2.4.19 [5] 65.9 99 0 0 0.99
2.4.20 [5] 65.7 99 0 0 0.98
2.5.49 [5] 67.4 99 0 0 1.01
2.5.50 [5] 67.3 99 0 0 1.01
process_load:
Kernel [runs] Time CPU% Loads LCPU% Ratio
2.4.19 [5] 106.2 58 82 40 1.59
2.4.20 [5] 108.1 58 84 40 1.62
2.5.49 [5] 85.2 79 17 20 1.28
2.5.50 [5] 84.8 79 17 19 1.27
dbench_load:
Kernel [runs] Time CPU% Loads LCPU% Ratio
2.4.19 [5] 215.9 31 2 45 3.23
2.4.20 [5] 207.2 32 2 46 3.10
2.5.49 [5] 210.5 37 2 50 3.15
2.5.50 [5] 189.2 40 2 49 2.83
Improvement here.
ctar_load:
Kernel [runs] Time CPU% Loads LCPU% Ratio
2.4.19 [5] 85.6 81 2 8 1.28
2.4.20 [5] 85.4 83 2 9 1.28
2.5.49 [5] 106.1 82 2 9 1.59
2.5.50 [5] 107.5 81 3 9 1.61
xtar_load:
Kernel [runs] Time CPU% Loads LCPU% Ratio
2.4.19 [5] 104.5 65 2 7 1.57
2.4.20 [5] 107.6 64 2 8 1.61
2.5.49 [5] 184.8 70 3 8 2.77
2.5.50 [5] 189.5 61 4 9 2.84
io_load:
Kernel [runs] Time CPU% Loads LCPU% Ratio
2.4.19 [5] 182.3 37 36 14 2.73
2.4.20 [5] 203.4 33 40 15 3.05
2.5.49 [5] 127.4 57 14 13 1.91
2.5.50 [5] 142.6 54 19 14 2.14
Slight slowdown here.
io_other:
Kernel [runs] Time CPU% Loads LCPU% Ratio
2.4.19 [5] 111.9 60 21 15 1.68
2.4.20 [5] 120.3 56 24 16 1.80
2.5.49 [5] 97.4 75 7 11 1.46
2.5.50 [5] 106.9 69 10 11 1.60
This is an io_load on another hard disk, slight slowdown here.
read_load:
Kernel [runs] Time CPU% Loads LCPU% Ratio
2.4.19 [5] 95.8 76 16 4 1.43
2.4.20 [5] 88.8 82 16 4 1.33
2.5.49 [5] 88.2 80 15 6 1.32
2.5.50 [5] 88.5 80 15 7 1.33
list_load:
Kernel [runs] Time CPU% Loads LCPU% Ratio
2.4.19 [5] 76.8 87 0 7 1.15
2.4.20 [5] 75.7 88 0 8 1.13
2.5.49 [5] 81.4 85 0 8 1.22
2.5.50 [5] 81.2 85 0 8 1.22
mem_load:
Kernel [runs] Time CPU% Loads LCPU% Ratio
2.4.19 [5] 87.3 78 43 2 1.31
2.4.20 [5] 84.8 80 44 2 1.27
2.5.49 [5] 98.1 76 43 2 1.47
2.5.50 [5] 98.3 76 44 2 1.47
SMP:
noload:
Kernel [runs] Time CPU% Loads LCPU% Ratio
2.4.19 [5] 38.0 183 0 0 1.05
2.4.20 [5] 36.9 189 0 0 1.02
2.5.49 [6] 39.3 181 0 0 1.09
2.5.50 [5] 39.3 180 0 0 1.09
cacherun:
Kernel [runs] Time CPU% Loads LCPU% Ratio
2.4.19 [5] 35.9 193 0 0 0.99
2.4.20 [5] 35.8 194 0 0 0.99
2.5.49 [6] 36.6 194 0 0 1.01
2.5.50 [5] 36.5 194 0 0 1.01
process_load:
Kernel [runs] Time CPU% Loads LCPU% Ratio
2.4.19 [5] 49.8 140 20 57 1.38
2.4.20 [5] 51.0 138 20 59 1.41
2.5.49 [6] 50.0 141 11 52 1.38
2.5.50 [5] 47.8 148 10 46 1.32
dbench_load:
Kernel [runs] Time CPU% Loads LCPU% Ratio
2.4.19 [5] 159.4 45 0 40 4.40
2.4.20 [5] 144.8 49 0 38 4.00
2.5.49 [5] 119.8 96 0 26 3.31
2.5.50 [5] 199.8 101 0 24 5.52
Interesting, UP sped up here but SMP dropped off.
ctar_load:
Kernel [runs] Time CPU% Loads LCPU% Ratio
2.4.19 [5] 43.7 165 1 10 1.21
2.4.20 [5] 43.1 169 1 11 1.19
2.5.49 [5] 53.8 161 1 10 1.49
2.5.50 [5] 54.6 157 1 10 1.51
xtar_load:
Kernel [runs] Time CPU% Loads LCPU% Ratio
2.4.19 [5] 49.2 144 1 10 1.36
2.4.20 [5] 63.5 114 1 12 1.75
2.5.49 [5] 72.9 132 1 10 2.01
2.5.50 [5] 116.2 103 2 10 3.21
Slowdown in SMP.
io_load:
Kernel [runs] Time CPU% Loads LCPU% Ratio
2.4.19 [5] 162.3 45 28 19 4.48
2.4.20 [5] 164.9 45 31 21 4.55
2.5.49 [5] 75.5 110 9 18 2.09
2.5.50 [5] 87.6 102 14 22 2.42
Correlates with slowdown in UP
io_other:
Kernel [runs] Time CPU% Loads LCPU% Ratio
2.4.19 [5] 62.3 117 11 20 1.72
2.4.20 [5] 89.6 86 17 21 2.47
2.5.49 [5] 64.2 130 8 19 1.77
2.5.50 [5] 59.3 139 7 18 1.64
Speedup here probably not statistically significant.
read_load:
Kernel [runs] Time CPU% Loads LCPU% Ratio
2.4.19 [5] 60.2 123 9 7 1.66
2.4.20 [5] 51.0 143 7 7 1.41
2.5.49 [5] 49.1 152 5 7 1.36
2.5.50 [5] 49.3 151 5 7 1.36
list_load:
Kernel [runs] Time CPU% Loads LCPU% Ratio
2.4.19 [5] 40.3 174 0 8 1.11
2.4.20 [5] 40.4 175 0 8 1.12
2.5.49 [5] 43.4 167 0 8 1.20
2.5.50 [5] 43.4 167 0 8 1.20
mem_load:
Kernel [runs] Time CPU% Loads LCPU% Ratio
2.4.19 [5] 53.7 133 36 3 1.48
2.4.20 [5] 52.0 139 37 3 1.44
2.5.49 [5] 62.5 145 35 3 1.73
2.5.50 [5] 63.3 141 36 3 1.75
Interesting. There is a divergence under SMP versus UP. The hardware is the
same for both SMP and UP with the second cpu offline for UP. Maybe these will
start to make more sense with continued testing of newer kernels.
Further details can be found here:
http://www.osdl.org/projects/ctdevel/results/
Con
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