ADTast-experimental
Last change
on this file since 1c75ef8 was
50cfa99,
checked in by Peter A. Buhr <pabuhr@…>, 5 years ago
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change Go command-line code to behave like C
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-
Property mode set to
100644
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File size:
798 bytes
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Line | |
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1 | package main |
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2 | |
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3 | import ( |
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4 | "fmt" |
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5 | "time" |
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6 | "os" |
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7 | "strconv" |
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8 | "runtime" |
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9 | ) |
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10 | |
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11 | //======================================= |
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12 | // time context switch |
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13 | //======================================= |
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14 | |
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15 | var shake chan bool = make( chan bool ) |
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16 | |
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17 | func ContextSwitch(N int) { |
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18 | start := time.Now() |
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19 | for i := 1; i <= N; i += 1 { |
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20 | runtime.Gosched() |
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21 | } |
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22 | end := time.Now() |
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23 | fmt.Printf("%d\n", end.Sub(start) / time.Duration(N)) |
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24 | shake <- true // indicate completion |
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25 | } |
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26 | |
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27 | //======================================= |
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28 | // benchmark driver |
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29 | //======================================= |
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30 | |
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31 | func main() { |
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32 | var times int = 10000000 |
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33 | if len( os.Args ) > 2 { os.Exit( 1 ) } |
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34 | if len( os.Args ) == 2 { times, _ = strconv.Atoi(os.Args[1]) } |
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35 | go ContextSwitch( times ) // context switch |
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36 | <- shake |
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37 | } |
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38 | |
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39 | // Local Variables: // |
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40 | // tab-width: 4 // |
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41 | // End: // |
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