Rev 1655 | Details | Compare with Previous | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
|---|---|---|---|
| 1655 | giacomo | 1 | /* |
| 2 | * Project: S.Ha.R.K. |
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| 3 | * |
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| 4 | * Coordinators: |
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| 5 | * Giorgio Buttazzo <giorgio@sssup.it> |
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| 6 | * Paolo Gai <pj@gandalf.sssup.it> |
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| 7 | * |
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| 8 | * Authors : |
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| 9 | * Paolo Gai <pj@gandalf.sssup.it> |
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| 10 | * Massimiliano Giorgi <massy@gandalf.sssup.it> |
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| 11 | * Luca Abeni <luca@gandalf.sssup.it> |
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| 12 | * (see the web pages for full authors list) |
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| 13 | * |
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| 14 | * ReTiS Lab (Scuola Superiore S.Anna - Pisa - Italy) |
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| 15 | * |
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| 16 | * http://www.sssup.it |
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| 17 | * http://retis.sssup.it |
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| 18 | * http://shark.sssup.it |
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| 19 | */ |
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| 20 | |||
| 21 | /* |
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| 22 | * Copyright (C) 2000 Massimiliano Giorgi |
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| 23 | * |
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| 24 | * This program is free software; you can redistribute it and/or modify |
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| 25 | * it under the terms of the GNU General Public License as published by |
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| 26 | * the Free Software Foundation; either version 2 of the License, or |
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| 27 | * (at your option) any later version. |
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| 28 | * |
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| 29 | * This program is distributed in the hope that it will be useful, |
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| 30 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 31 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 32 | * GNU General Public License for more details. |
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| 33 | * |
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| 34 | * You should have received a copy of the GNU General Public License |
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| 35 | * along with this program; if not, write to the Free Software |
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| 36 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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| 37 | * |
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| 38 | * CVS : $Id: wait.c,v 1.1.1.1 2004-05-24 18:03:44 giacomo Exp $ |
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| 39 | */ |
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| 40 | |||
| 41 | #include <stdio.h> |
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| 42 | #include <stdlib.h> |
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| 43 | #include "types.h" |
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| 44 | #include <trace.h> |
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| 45 | #include "util.h" |
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| 46 | |||
| 47 | /* This demo computes the distribution of the wait times on disk requests */ |
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| 48 | |||
| 49 | #define MAXX 37000 |
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| 50 | #define PREC 37000 |
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| 51 | #define DELTA ((double)MAXX/(double)PREC) |
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| 52 | |||
| 53 | #include "distr.c" |
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| 54 | |||
| 55 | int task; |
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| 56 | long a=-1; |
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| 57 | |||
| 58 | int waitfunc(trc_event_t *ev) |
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| 59 | { |
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| 60 | if (event_class(ev->event)!=TRC_CLASS_USER) return 0; |
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| 61 | if (ev->x.usr.n!=task) return 0; |
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| 62 | if (ev->event==TRC_USER1) { |
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| 63 | a=ev->time; |
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| 64 | return 0; |
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| 65 | } |
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| 66 | if (ev->event==TRC_USER2) { |
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| 67 | if (a!=-1) d_insert(ev->time-a); |
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| 68 | a=-1; |
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| 69 | } |
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| 70 | return 0; |
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| 71 | } |
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| 72 | |||
| 73 | int main(int argc, char *argv[]) |
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| 74 | { |
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| 75 | FILE *fout; |
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| 76 | int res; |
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| 77 | if (argc!=4) { |
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| 78 | fprintf(stderr,"missing filename!\n"); |
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| 79 | return -1; |
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| 80 | } |
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| 81 | d_init(); |
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| 82 | task=atoi(argv[2]); |
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| 83 | res=read_trace(argv[1],waitfunc); |
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| 84 | if (res==0) { |
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| 85 | fout=fopen(argv[3],"wt"); |
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| 86 | if (fout!=NULL) { |
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| 87 | d_dump(fout); |
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| 88 | fclose(fout); |
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| 89 | } else |
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| 90 | fprintf(stderr,"can't create output file!\n"); |
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| 91 | } else |
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| 92 | fprintf(stderr,"read_trace error\n"); |
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| 93 | |||
| 94 | return 0; |
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| 95 | } |