tools/perf/util/values.c

   1 #include <stdlib.h>
   2
   3 #include "util.h"
   4 #include "values.h"
   5
   6 void perf_read_values_init(struct perf_read_values *values)
   7 {
   8         values->threads_max = 16;
   9         values->pid = malloc(values->threads_max * sizeof(*values->pid));
  10         values->tid = malloc(values->threads_max * sizeof(*values->tid));
  11         values->value = malloc(values->threads_max * sizeof(*values->value));
  12         if (!values->pid || !values->tid || !values->value)
  13                 die("failed to allocate read_values threads arrays");
  14         values->threads = 0;
  15
  16         values->counters_max = 16;
  17         values->counterrawid = malloc(values->counters_max
  18                                       * sizeof(*values->counterrawid));
  19         values->countername = malloc(values->counters_max
  20                                      * sizeof(*values->countername));
  21         if (!values->counterrawid || !values->countername)
  22                 die("failed to allocate read_values counters arrays");
  23         values->counters = 0;
  24 }
  25
  26 void perf_read_values_destroy(struct perf_read_values *values)
  27 {
  28         int i;
  29
  30         if (!values->threads_max || !values->counters_max)
  31                 return;
  32
  33         for (i = 0; i < values->threads; i++)
  34                 free(values->value[i]);
  35         free(values->pid);
  36         free(values->tid);
  37         free(values->counterrawid);
  38         for (i = 0; i < values->counters; i++)
  39                 free(values->countername[i]);
  40         free(values->countername);
  41 }
  42
  43 static void perf_read_values__enlarge_threads(struct perf_read_values *values)
  44 {
  45         values->threads_max *= 2;
  46         values->pid = realloc(values->pid,
  47                               values->threads_max * sizeof(*values->pid));
  48         values->tid = realloc(values->tid,
  49                               values->threads_max * sizeof(*values->tid));
  50         values->value = realloc(values->value,
  51                                 values->threads_max * sizeof(*values->value));
  52         if (!values->pid || !values->tid || !values->value)
  53                 die("failed to enlarge read_values threads arrays");
  54 }
  55
  56 static int perf_read_values__findnew_thread(struct perf_read_values *values,
  57                                             u32 pid, u32 tid)
  58 {
  59         int i;
  60
  61         for (i = 0; i < values->threads; i++)
  62                 if (values->pid[i] == pid && values->tid[i] == tid)
  63                         return i;
  64
  65         if (values->threads == values->threads_max)
  66                 perf_read_values__enlarge_threads(values);
  67
  68         i = values->threads++;
  69         values->pid[i] = pid;
  70         values->tid[i] = tid;
  71         values->value[i] = malloc(values->counters_max * sizeof(**values->value));
  72         if (!values->value[i])
  73                 die("failed to allocate read_values counters array");
  74
  75         return i;
  76 }
  77
  78 static void perf_read_values__enlarge_counters(struct perf_read_values *values)
  79 {
  80         int i;
  81
  82         values->counters_max *= 2;
  83         values->counterrawid = realloc(values->counterrawid,
  84                                        values->counters_max * sizeof(*values->counterrawid));
  85         values->countername = realloc(values->countername,
  86                                       values->counters_max * sizeof(*values->countername));
  87         if (!values->counterrawid || !values->countername)
  88                 die("failed to enlarge read_values counters arrays");
  89
  90         for (i = 0; i < values->threads; i++) {
  91                 values->value[i] = realloc(values->value[i],
  92                                            values->counters_max * sizeof(**values->value));
  93                 if (!values->value[i])
  94                         die("failed to enlarge read_values counters arrays");
  95         }
  96 }
  97
  98 static int perf_read_values__findnew_counter(struct perf_read_values *values,
  99                                              u64 rawid, const char *name)
 100 {
 101         int i;
 102
 103         for (i = 0; i < values->counters; i++)
 104                 if (values->counterrawid[i] == rawid)
 105                         return i;
 106
 107         if (values->counters == values->counters_max)
 108                 perf_read_values__enlarge_counters(values);
 109
 110         i = values->counters++;
 111         values->counterrawid[i] = rawid;
 112         values->countername[i] = strdup(name);
 113
 114         return i;
 115 }
 116
 117 void perf_read_values_add_value(struct perf_read_values *values,
 118                                 u32 pid, u32 tid,
 119                                 u64 rawid, const char *name, u64 value)
 120 {
 121         int tindex, cindex;
 122
 123         tindex = perf_read_values__findnew_thread(values, pid, tid);
 124         cindex = perf_read_values__findnew_counter(values, rawid, name);
 125
 126         values->value[tindex][cindex] = value;
 127 }
 128
 129 static void perf_read_values__display_pretty(FILE *fp,
 130                                              struct perf_read_values *values)
 131 {
 132         int i, j;
 133         int pidwidth, tidwidth;
 134         int *counterwidth;
 135
 136         counterwidth = malloc(values->counters * sizeof(*counterwidth));
 137         if (!counterwidth)
 138                 die("failed to allocate counterwidth array");
 139         tidwidth = 3;
 140         pidwidth = 3;
 141         for (j = 0; j < values->counters; j++)
 142                 counterwidth[j] = strlen(values->countername[j]);
 143         for (i = 0; i < values->threads; i++) {
 144                 int width;
 145
 146                 width = snprintf(NULL, 0, "%d", values->pid[i]);
 147                 if (width > pidwidth)
 148                         pidwidth = width;
 149                 width = snprintf(NULL, 0, "%d", values->tid[i]);
 150                 if (width > tidwidth)
 151                         tidwidth = width;
 152                 for (j = 0; j < values->counters; j++) {
 153                         width = snprintf(NULL, 0, "%Lu", values->value[i][j]);
 154                         if (width > counterwidth[j])
 155                                 counterwidth[j] = width;
 156                 }
 157         }
 158
 159         fprintf(fp, "# %*s  %*s", pidwidth, "PID", tidwidth, "TID");
 160         for (j = 0; j < values->counters; j++)
 161                 fprintf(fp, "  %*s", counterwidth[j], values->countername[j]);
 162         fprintf(fp, "\n");
 163
 164         for (i = 0; i < values->threads; i++) {
 165                 fprintf(fp, "  %*d  %*d", pidwidth, values->pid[i],
 166                         tidwidth, values->tid[i]);
 167                 for (j = 0; j < values->counters; j++)
 168                         fprintf(fp, "  %*Lu",
 169                                 counterwidth[j], values->value[i][j]);
 170                 fprintf(fp, "\n");
 171         }
 172         free(counterwidth);
 173 }
 174
 175 static void perf_read_values__display_raw(FILE *fp,
 176                                           struct perf_read_values *values)
 177 {
 178         int width, pidwidth, tidwidth, namewidth, rawwidth, countwidth;
 179         int i, j;
 180
 181         tidwidth = 3; /* TID */
 182         pidwidth = 3; /* PID */
 183         namewidth = 4; /* "Name" */
 184         rawwidth = 3; /* "Raw" */
 185         countwidth = 5; /* "Count" */
 186
 187         for (i = 0; i < values->threads; i++) {
 188                 width = snprintf(NULL, 0, "%d", values->pid[i]);
 189                 if (width > pidwidth)
 190                         pidwidth = width;
 191                 width = snprintf(NULL, 0, "%d", values->tid[i]);
 192                 if (width > tidwidth)
 193                         tidwidth = width;
 194         }
 195         for (j = 0; j < values->counters; j++) {
 196                 width = strlen(values->countername[j]);
 197                 if (width > namewidth)
 198                         namewidth = width;
 199                 width = snprintf(NULL, 0, "%llx", values->counterrawid[j]);
 200                 if (width > rawwidth)
 201                         rawwidth = width;
 202         }
 203         for (i = 0; i < values->threads; i++) {
 204                 for (j = 0; j < values->counters; j++) {
 205                         width = snprintf(NULL, 0, "%Lu", values->value[i][j]);
 206                         if (width > countwidth)
 207                                 countwidth = width;
 208                 }
 209         }
 210
 211         fprintf(fp, "# %*s  %*s  %*s  %*s  %*s\n",
 212                 pidwidth, "PID", tidwidth, "TID",
 213                 namewidth, "Name", rawwidth, "Raw",
 214                 countwidth, "Count");
 215         for (i = 0; i < values->threads; i++)
 216                 for (j = 0; j < values->counters; j++)
 217                         fprintf(fp, "  %*d  %*d  %*s  %*llx  %*Lu\n",
 218                                 pidwidth, values->pid[i],
 219                                 tidwidth, values->tid[i],
 220                                 namewidth, values->countername[j],
 221                                 rawwidth, values->counterrawid[j],
 222                                 countwidth, values->value[i][j]);
 223 }
 224
 225 void perf_read_values_display(FILE *fp, struct perf_read_values *values, int raw)
 226 {
 227         if (raw)
 228                 perf_read_values__display_raw(fp, values);
 229         else
 230                 perf_read_values__display_pretty(fp, values);
 231 }