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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 1093 | pj | 1 | |
| 2 | #include <stdio.h> |
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| 3 | #include <stdlib.h> |
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| 4 | #include "types.h" |
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| 5 | #include <trace.h> |
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| 6 | #include "util.h" |
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| 7 | |||
| 8 | /* This demo computes the distribution of the wait times on disk requests */ |
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| 9 | |||
| 10 | #define MAXX 37000 |
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| 11 | #define PREC 37000 |
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| 12 | #define DELTA ((double)MAXX/(double)PREC) |
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| 13 | |||
| 14 | #include "distr.c" |
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| 15 | |||
| 16 | int task; |
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| 17 | long a=-1; |
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| 18 | |||
| 19 | int waitfunc(trc_event_t *ev) |
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| 20 | { |
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| 21 | if (event_class(ev->event)!=TRC_CLASS_USER) return 0; |
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| 22 | if (ev->x.usr.n!=task) return 0; |
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| 23 | if (ev->event==TRC_USER1) { |
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| 24 | a=ev->time; |
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| 25 | return 0; |
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| 26 | } |
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| 27 | if (ev->event==TRC_USER2) { |
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| 28 | if (a!=-1) d_insert(ev->time-a); |
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| 29 | a=-1; |
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| 30 | } |
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| 31 | return 0; |
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| 32 | } |
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| 33 | |||
| 34 | int main(int argc, char *argv[]) |
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| 35 | { |
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| 36 | FILE *fout; |
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| 37 | int res; |
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| 38 | if (argc!=4) { |
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| 39 | fprintf(stderr,"missing filename!\n"); |
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| 40 | return -1; |
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| 41 | } |
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| 42 | d_init(); |
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| 43 | task=atoi(argv[2]); |
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| 44 | res=read_trace(argv[1],waitfunc); |
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| 45 | if (res==0) { |
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| 46 | fout=fopen(argv[3],"wt"); |
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| 47 | if (fout!=NULL) { |
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| 48 | d_dump(fout); |
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| 49 | fclose(fout); |
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| 50 | } else |
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| 51 | fprintf(stderr,"can't create output file!\n"); |
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| 52 | } else |
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| 53 | fprintf(stderr,"read_trace error\n"); |
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| 54 | |||
| 55 | return 0; |
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| 56 | } |