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122 lines
2.8 KiB
122 lines
2.8 KiB
/*
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* blktrace output analysis: generate a timeline & gather statistics
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*
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* (C) Copyright 2007 Hewlett-Packard Development Company, L.P.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "globals.h"
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#define Q2D_MAX_HISTO 9
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struct q2d_info {
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unsigned long nhistos;
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unsigned long histos[Q2D_MAX_HISTO + 1];
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};
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void q2d_histo_add(void *priv, __u64 q2d_in)
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{
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int index;
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struct q2d_info *q2dp = priv;
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double q2d = BIT_TIME(q2d_in);
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long msec = (long)(q2d / 0.001);
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switch (msec) {
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default: index = 9; break;
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case 500 ... 999: index = 8; break;
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case 250 ... 499: index = 7; break;
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case 100 ... 249: index = 6; break;
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case 75 ... 99: index = 5; break;
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case 50 ... 74: index = 4; break;
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case 25 ... 49: index = 3; break;
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case 10 ... 24: index = 2; break;
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case 5 ... 9: index = 1; break;
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case 0 ... 4: index = 0; break;
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}
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q2dp->histos[index]++;
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q2dp->nhistos++;
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}
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void *q2d_alloc(void)
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{
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struct q2d_info *q2dp = malloc(sizeof(*q2dp));
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return memset(q2dp, 0, sizeof(*q2dp));
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}
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void q2d_free(void *priv)
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{
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free(priv);
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}
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void q2d_display_header(FILE *fp)
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{
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fprintf(fp, "%5s ", "<.005");
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fprintf(fp, "%5s ", "<.010");
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fprintf(fp, "%5s ", "<.025");
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fprintf(fp, "%5s ", "<.050");
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fprintf(fp, "%5s ", "<.075");
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fprintf(fp, "%5s ", "<.100");
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fprintf(fp, "%5s ", "<.250");
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fprintf(fp, "%5s ", "<.500");
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fprintf(fp, "%5s ", "< 1.0");
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fprintf(fp, "%5s ", ">=1.0\n");
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}
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void q2d_display_dashes(FILE *fp)
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{
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int i;
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for (i = 0; i <= Q2D_MAX_HISTO; i++)
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fprintf(fp, "===== ");
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fprintf(fp, "\n");
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}
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void q2d_display(FILE *fp, void *priv)
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{
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int i;
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struct q2d_info *q2dp = priv;
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double nh = (double)q2dp->nhistos;
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for (i = 0; i <= Q2D_MAX_HISTO; i++) {
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double p = 100.0 * (double)q2dp->histos[i] / nh;
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fprintf(fp, "%5.1lf ", p);
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}
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fprintf(fp, "\n");
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}
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int q2d_ok(void *priv)
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{
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struct q2d_info *q2dp = priv;
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return q2dp && q2dp->nhistos > 0;
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}
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void q2d_acc(void *a1, void *a2)
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{
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int i;
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struct q2d_info *ap = a1;
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struct q2d_info *tp = a2;
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for (i = 0; i <= Q2D_MAX_HISTO; i++)
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ap->histos[i] += tp->histos[i];
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ap->nhistos += tp->nhistos;
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}
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