1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
|
#!/usr/bin/env bash
if [[ ! ${BLE_VERSION-} ]]; then
source ../../src/benchmark.sh
fi
function measure-array.1 {
local N=$1
eval "local -a a=({1..$N})"
ble-measure "$2"
}
function measure-array {
measure-array.1 10 "$1 10 "
measure-array.1 100 "$1 100 "
measure-array.1 1000 "$1 1000 "
measure-array.1 10000 "$1 10000 "
measure-array.1 100000 "$1 100000"
}
function sum-forward { local s=0; for ((i=0;i<N;i++)); do ((s+=a[i])); done ; }
function sum-backward { local s=0; for ((i=N;--i>=0;)); do ((s+=a[i])); done ; }
function sum-random { local s=0; for ((i=0;i<N;i++)); do ((s+=a[RANDOM%N])); done; }
measure-array sum-forward
measure-array sum-backward
measure-array sum-random
# bash-dev
# 38.371 usec/eval: sum-forward 10 (x5000)
# 311.913 usec/eval: sum-forward 100 (x500)
# 3046.322 usec/eval: sum-forward 1000 (x50)
# 30699.500 usec/eval: sum-forward 10000 (x5)
# 309013.300 usec/eval: sum-forward 100000 (x1)
# 33.804 usec/eval: sum-backward 10 (x5000)
# 269.811 usec/eval: sum-backward 100 (x500)
# 2645.302 usec/eval: sum-backward 1000 (x50)
# 26564.500 usec/eval: sum-backward 10000 (x5)
# 266084.300 usec/eval: sum-backward 100000 (x1)
# 45.826 usec/eval: sum-random 10 (x5000)
# 399.209 usec/eval: sum-random 100 (x500)
# 4580.182 usec/eval: sum-random 1000 (x50)
# 135904.300 usec/eval: sum-random 10000 (x1)
# 3693072.300 usec/eval: sum-random 100000 (x1)
# bash-5.0
# 38.723 usec/eval: sum-forward 10 (x5000)
# 322.861 usec/eval: sum-forward 100 (x500)
# 3188.720 usec/eval: sum-forward 1000 (x50)
# 31446.200 usec/eval: sum-forward 10000 (x5)
# 317422.600 usec/eval: sum-forward 100000 (x1)
# 34.875 usec/eval: sum-backward 10 (x5000)
# 286.639 usec/eval: sum-backward 100 (x500)
# 2826.220 usec/eval: sum-backward 1000 (x50)
# 27921.600 usec/eval: sum-backward 10000 (x5)
# 283819.600 usec/eval: sum-backward 100000 (x1)
# 46.838 usec/eval: sum-random 10 (x2000)
# 414.663 usec/eval: sum-random 100 (x500)
# 5517.050 usec/eval: sum-random 1000 (x20)
# 123421.600 usec/eval: sum-random 10000 (x1)
# 4942400.600 usec/eval: sum-random 100000 (x1)
# bash-4.4
# 41.660 usec/eval: sum-forward 10 (x5000)
# 354.000 usec/eval: sum-forward 100 (x500)
# 3416.000 usec/eval: sum-forward 1000 (x50)
# 34200.000 usec/eval: sum-forward 10000 (x5)
# 347000.000 usec/eval: sum-forward 100000 (x1)
# 37.060 usec/eval: sum-backward 10 (x5000)
# 316.000 usec/eval: sum-backward 100 (x500)
# 5095.000 usec/eval: sum-backward 1000 (x20)
# 242000.000 usec/eval: sum-backward 10000 (x1)
# 19999000.000 usec/eval: sum-backward 100000 (x1)
# 51.050 usec/eval: sum-random 10 (x2000)
# 454.000 usec/eval: sum-random 100 (x500)
# 5895.000 usec/eval: sum-random 1000 (x20)
# 172000.000 usec/eval: sum-random 10000 (x1)
# 4577000.000 usec/eval: sum-random 100000 (x1)
|
