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Commit | Line | Data |
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a59e8eda SH |
1 | /* |
2 | * Pareto distribution table generator | |
3 | * Taken from the uncopyrighted NISTnet code. | |
4 | */ | |
5 | #include <stdio.h> | |
6 | #include <stdlib.h> | |
7 | #include <math.h> | |
8 | #include <limits.h> | |
9 | ||
10 | #include <linux/types.h> | |
11 | #include <linux/pkt_sched.h> | |
12 | ||
13 | static const double a=3.0; | |
14 | #define TABLESIZE 16384 | |
15 | #define TABLEFACTOR NETEM_DIST_SCALE | |
16 | ||
17 | int | |
18 | main(int argc, char **argv) | |
19 | { | |
20 | int i, n; | |
21 | double dvalue; | |
22 | ||
23 | printf("# This is the distribution table for the pareto distribution.\n"); | |
24 | ||
25 | for (i = 65536, n = 0; i > 0; i -= 16) { | |
26 | dvalue = (double)i/(double)65536; | |
27 | dvalue = 1.0/pow(dvalue, 1.0/a); | |
28 | dvalue -= 1.5; | |
29 | dvalue *= (4.0/3.0)*(double)TABLEFACTOR; | |
30 | if (dvalue > 32767) | |
31 | dvalue = 32767; | |
32 | ||
33 | printf(" %d", (int)rint(dvalue)); | |
34 | if (++n == 8) { | |
35 | putchar('\n'); | |
36 | n = 0; | |
37 | } | |
38 | } | |
e9e9365b | 39 | |
a59e8eda | 40 | return 0; |
e9e9365b | 41 | } |