tools/perf/util/svghelper.c

   1 /*
   2  * svghelper.c - helper functions for outputting svg
   3  *
   4  * (C) Copyright 2009 Intel Corporation
   5  *
   6  * Authors:
   7  *     Arjan van de Ven <arjan@linux.intel.com>
   8  *
   9  * This program is free software; you can redistribute it and/or
  10  * modify it under the terms of the GNU General Public License
  11  * as published by the Free Software Foundation; version 2
  12  * of the License.
  13  */
  14
  15 #include <inttypes.h>
  16 #include <stdio.h>
  17 #include <stdlib.h>
  18 #include <unistd.h>
  19 #include <string.h>
  20
  21 #include "svghelper.h"
  22
  23 static u64 first_time, last_time;
  24 static u64 turbo_frequency, max_freq;
  25
  26
  27 #define SLOT_MULT 30.0
  28 #define SLOT_HEIGHT 25.0
  29
  30 int svg_page_width = 1000;
  31
  32 #define MIN_TEXT_SIZE 0.01
  33
  34 static u64 total_height;
  35 static FILE *svgfile;
  36
  37 static double cpu2slot(int cpu)
  38 {
  39         return 2 * cpu + 1;
  40 }
  41
  42 static double cpu2y(int cpu)
  43 {
  44         return cpu2slot(cpu) * SLOT_MULT;
  45 }
  46
  47 static double time2pixels(u64 __time)
  48 {
  49         double X;
  50
  51         X = 1.0 * svg_page_width * (__time - first_time) / (last_time - first_time);
  52         return X;
  53 }
  54
  55 /*
  56  * Round text sizes so that the svg viewer only needs a discrete
  57  * number of renderings of the font
  58  */
  59 static double round_text_size(double size)
  60 {
  61         int loop = 100;
  62         double target = 10.0;
  63
  64         if (size >= 10.0)
  65                 return size;
  66         while (loop--) {
  67                 if (size >= target)
  68                         return target;
  69                 target = target / 2.0;
  70         }
  71         return size;
  72 }
  73
  74 void open_svg(const char *filename, int cpus, int rows, u64 start, u64 end)
  75 {
  76         int new_width;
  77
  78         svgfile = fopen(filename, "w");
  79         if (!svgfile) {
  80                 fprintf(stderr, "Cannot open %s for output\n", filename);
  81                 return;
  82         }
  83         first_time = start;
  84         first_time = first_time / 100000000 * 100000000;
  85         last_time = end;
  86
  87         /*
  88          * if the recording is short, we default to a width of 1000, but
  89          * for longer recordings we want at least 200 units of width per second
  90          */
  91         new_width = (last_time - first_time) / 5000000;
  92
  93         if (new_width > svg_page_width)
  94                 svg_page_width = new_width;
  95
  96         total_height = (1 + rows + cpu2slot(cpus)) * SLOT_MULT;
  97         fprintf(svgfile, "<?xml version=\"1.0\" standalone=\"no\"?> \n");
  98         fprintf(svgfile, "<svg width=\"%i\" height=\"%" PRIu64 "\" version=\"1.1\" xmlns=\"http://www.w3.org/2000/svg\">\n", svg_page_width, total_height);
  99
 100         fprintf(svgfile, "<defs>\n  <style type=\"text/css\">\n    <![CDATA[\n");
 101
 102         fprintf(svgfile, "      rect          { stroke-width: 1; }\n");
 103         fprintf(svgfile, "      rect.process  { fill:rgb(180,180,180); fill-opacity:0.9; stroke-width:1;   stroke:rgb(  0,  0,  0); } \n");
 104         fprintf(svgfile, "      rect.process2 { fill:rgb(180,180,180); fill-opacity:0.9; stroke-width:0;   stroke:rgb(  0,  0,  0); } \n");
 105         fprintf(svgfile, "      rect.sample   { fill:rgb(  0,  0,255); fill-opacity:0.8; stroke-width:0;   stroke:rgb(  0,  0,  0); } \n");
 106         fprintf(svgfile, "      rect.blocked  { fill:rgb(255,  0,  0); fill-opacity:0.5; stroke-width:0;   stroke:rgb(  0,  0,  0); } \n");
 107         fprintf(svgfile, "      rect.waiting  { fill:rgb(224,214,  0); fill-opacity:0.8; stroke-width:0;   stroke:rgb(  0,  0,  0); } \n");
 108         fprintf(svgfile, "      rect.WAITING  { fill:rgb(255,214, 48); fill-opacity:0.6; stroke-width:0;   stroke:rgb(  0,  0,  0); } \n");
 109         fprintf(svgfile, "      rect.cpu      { fill:rgb(192,192,192); fill-opacity:0.2; stroke-width:0.5; stroke:rgb(128,128,128); } \n");
 110         fprintf(svgfile, "      rect.pstate   { fill:rgb(128,128,128); fill-opacity:0.8; stroke-width:0; } \n");
 111         fprintf(svgfile, "      rect.c1       { fill:rgb(255,214,214); fill-opacity:0.5; stroke-width:0; } \n");
 112         fprintf(svgfile, "      rect.c2       { fill:rgb(255,172,172); fill-opacity:0.5; stroke-width:0; } \n");
 113         fprintf(svgfile, "      rect.c3       { fill:rgb(255,130,130); fill-opacity:0.5; stroke-width:0; } \n");
 114         fprintf(svgfile, "      rect.c4       { fill:rgb(255, 88, 88); fill-opacity:0.5; stroke-width:0; } \n");
 115         fprintf(svgfile, "      rect.c5       { fill:rgb(255, 44, 44); fill-opacity:0.5; stroke-width:0; } \n");
 116         fprintf(svgfile, "      rect.c6       { fill:rgb(255,  0,  0); fill-opacity:0.5; stroke-width:0; } \n");
 117         fprintf(svgfile, "      line.pstate   { stroke:rgb(255,255,  0); stroke-opacity:0.8; stroke-width:2; } \n");
 118
 119         fprintf(svgfile, "    ]]>\n   </style>\n</defs>\n");
 120 }
 121
 122 void svg_box(int Yslot, u64 start, u64 end, const char *type)
 123 {
 124         if (!svgfile)
 125                 return;
 126
 127         fprintf(svgfile, "<rect x=\"%4.8f\" width=\"%4.8f\" y=\"%4.1f\" height=\"%4.1f\" class=\"%s\"/>\n",
 128                 time2pixels(start), time2pixels(end)-time2pixels(start), Yslot * SLOT_MULT, SLOT_HEIGHT, type);
 129 }
 130
 131 void svg_sample(int Yslot, int cpu, u64 start, u64 end)
 132 {
 133         double text_size;
 134         if (!svgfile)
 135                 return;
 136
 137         fprintf(svgfile, "<rect x=\"%4.8f\" width=\"%4.8f\" y=\"%4.1f\" height=\"%4.1f\" class=\"sample\"/>\n",
 138                 time2pixels(start), time2pixels(end)-time2pixels(start), Yslot * SLOT_MULT, SLOT_HEIGHT);
 139
 140         text_size = (time2pixels(end)-time2pixels(start));
 141         if (cpu > 9)
 142                 text_size = text_size/2;
 143         if (text_size > 1.25)
 144                 text_size = 1.25;
 145         text_size = round_text_size(text_size);
 146
 147         if (text_size > MIN_TEXT_SIZE)
 148                 fprintf(svgfile, "<text x=\"%1.8f\" y=\"%1.8f\" font-size=\"%1.8fpt\">%i</text>\n",
 149                         time2pixels(start), Yslot *  SLOT_MULT + SLOT_HEIGHT - 1, text_size,  cpu + 1);
 150
 151 }
 152
 153 static char *time_to_string(u64 duration)
 154 {
 155         static char text[80];
 156
 157         text[0] = 0;
 158
 159         if (duration < 1000) /* less than 1 usec */
 160                 return text;
 161
 162         if (duration < 1000 * 1000) { /* less than 1 msec */
 163                 sprintf(text, "%4.1f us", duration / 1000.0);
 164                 return text;
 165         }
 166         sprintf(text, "%4.1f ms", duration / 1000.0 / 1000);
 167
 168         return text;
 169 }
 170
 171 void svg_waiting(int Yslot, u64 start, u64 end)
 172 {
 173         char *text;
 174         const char *style;
 175         double font_size;
 176
 177         if (!svgfile)
 178                 return;
 179
 180         style = "waiting";
 181
 182         if (end-start > 10 * 1000000) /* 10 msec */
 183                 style = "WAITING";
 184
 185         text = time_to_string(end-start);
 186
 187         font_size = 1.0 * (time2pixels(end)-time2pixels(start));
 188
 189         if (font_size > 3)
 190                 font_size = 3;
 191
 192         font_size = round_text_size(font_size);
 193
 194         fprintf(svgfile, "<g transform=\"translate(%4.8f,%4.8f)\">\n", time2pixels(start), Yslot * SLOT_MULT);
 195         fprintf(svgfile, "<rect x=\"0\" width=\"%4.8f\" y=\"0\" height=\"%4.1f\" class=\"%s\"/>\n",
 196                 time2pixels(end)-time2pixels(start), SLOT_HEIGHT, style);
 197         if (font_size > MIN_TEXT_SIZE)
 198                 fprintf(svgfile, "<text transform=\"rotate(90)\" font-size=\"%1.8fpt\"> %s</text>\n",
 199                         font_size, text);
 200         fprintf(svgfile, "</g>\n");
 201 }
 202
 203 static char *cpu_model(void)
 204 {
 205         static char cpu_m[255];
 206         char buf[256];
 207         FILE *file;
 208
 209         cpu_m[0] = 0;
 210         /* CPU type */
 211         file = fopen("/proc/cpuinfo", "r");
 212         if (file) {
 213                 while (fgets(buf, 255, file)) {
 214                         if (strstr(buf, "model name")) {
 215                                 strncpy(cpu_m, &buf[13], 255);
 216                                 break;
 217                         }
 218                 }
 219                 fclose(file);
 220         }
 221
 222         /* CPU type */
 223         file = fopen("/sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies", "r");
 224         if (file) {
 225                 while (fgets(buf, 255, file)) {
 226                         unsigned int freq;
 227                         freq = strtoull(buf, NULL, 10);
 228                         if (freq > max_freq)
 229                                 max_freq = freq;
 230                 }
 231                 fclose(file);
 232         }
 233         return cpu_m;
 234 }
 235
 236 void svg_cpu_box(int cpu, u64 __max_freq, u64 __turbo_freq)
 237 {
 238         char cpu_string[80];
 239         if (!svgfile)
 240                 return;
 241
 242         max_freq = __max_freq;
 243         turbo_frequency = __turbo_freq;
 244
 245         fprintf(svgfile, "<rect x=\"%4.8f\" width=\"%4.8f\" y=\"%4.1f\" height=\"%4.1f\" class=\"cpu\"/>\n",
 246                 time2pixels(first_time),
 247                 time2pixels(last_time)-time2pixels(first_time),
 248                 cpu2y(cpu), SLOT_MULT+SLOT_HEIGHT);
 249
 250         sprintf(cpu_string, "CPU %i", (int)cpu+1);
 251         fprintf(svgfile, "<text x=\"%4.8f\" y=\"%4.8f\">%s</text>\n",
 252                 10+time2pixels(first_time), cpu2y(cpu) + SLOT_HEIGHT/2, cpu_string);
 253
 254         fprintf(svgfile, "<text transform=\"translate(%4.8f,%4.8f)\" font-size=\"1.25pt\">%s</text>\n",
 255                 10+time2pixels(first_time), cpu2y(cpu) + SLOT_MULT + SLOT_HEIGHT - 4, cpu_model());
 256 }
 257
 258 void svg_process(int cpu, u64 start, u64 end, const char *type, const char *name)
 259 {
 260         double width;
 261
 262         if (!svgfile)
 263                 return;
 264
 265
 266         fprintf(svgfile, "<g transform=\"translate(%4.8f,%4.8f)\">\n", time2pixels(start), cpu2y(cpu));
 267         fprintf(svgfile, "<rect x=\"0\" width=\"%4.8f\" y=\"0\" height=\"%4.1f\" class=\"%s\"/>\n",
 268                 time2pixels(end)-time2pixels(start), SLOT_MULT+SLOT_HEIGHT, type);
 269         width = time2pixels(end)-time2pixels(start);
 270         if (width > 6)
 271                 width = 6;
 272
 273         width = round_text_size(width);
 274
 275         if (width > MIN_TEXT_SIZE)
 276                 fprintf(svgfile, "<text transform=\"rotate(90)\" font-size=\"%3.8fpt\">%s</text>\n",
 277                         width, name);
 278
 279         fprintf(svgfile, "</g>\n");
 280 }
 281
 282 void svg_cstate(int cpu, u64 start, u64 end, int type)
 283 {
 284         double width;
 285         char style[128];
 286
 287         if (!svgfile)
 288                 return;
 289
 290
 291         if (type > 6)
 292                 type = 6;
 293         sprintf(style, "c%i", type);
 294
 295         fprintf(svgfile, "<rect class=\"%s\" x=\"%4.8f\" width=\"%4.8f\" y=\"%4.1f\" height=\"%4.1f\"/>\n",
 296                 style,
 297                 time2pixels(start), time2pixels(end)-time2pixels(start),
 298                 cpu2y(cpu), SLOT_MULT+SLOT_HEIGHT);
 299
 300         width = (time2pixels(end)-time2pixels(start))/2.0;
 301         if (width > 6)
 302                 width = 6;
 303
 304         width = round_text_size(width);
 305
 306         if (width > MIN_TEXT_SIZE)
 307                 fprintf(svgfile, "<text x=\"%4.8f\" y=\"%4.8f\" font-size=\"%3.8fpt\">C%i</text>\n",
 308                         time2pixels(start), cpu2y(cpu)+width, width, type);
 309 }
 310
 311 static char *HzToHuman(unsigned long hz)
 312 {
 313         static char buffer[1024];
 314         unsigned long long Hz;
 315
 316         memset(buffer, 0, 1024);
 317
 318         Hz = hz;
 319
 320         /* default: just put the Number in */
 321         sprintf(buffer, "%9lli", Hz);
 322
 323         if (Hz > 1000)
 324                 sprintf(buffer, " %6lli Mhz", (Hz+500)/1000);
 325
 326         if (Hz > 1500000)
 327                 sprintf(buffer, " %6.2f Ghz", (Hz+5000.0)/1000000);
 328
 329         if (Hz == turbo_frequency)
 330                 sprintf(buffer, "Turbo");
 331
 332         return buffer;
 333 }
 334
 335 void svg_pstate(int cpu, u64 start, u64 end, u64 freq)
 336 {
 337         double height = 0;
 338
 339         if (!svgfile)
 340                 return;
 341
 342         if (max_freq)
 343                 height = freq * 1.0 / max_freq * (SLOT_HEIGHT + SLOT_MULT);
 344         height = 1 + cpu2y(cpu) + SLOT_MULT + SLOT_HEIGHT - height;
 345         fprintf(svgfile, "<line x1=\"%4.8f\" x2=\"%4.8f\" y1=\"%4.1f\" y2=\"%4.1f\" class=\"pstate\"/>\n",
 346                 time2pixels(start), time2pixels(end), height, height);
 347         fprintf(svgfile, "<text x=\"%4.8f\" y=\"%4.8f\" font-size=\"0.25pt\">%s</text>\n",
 348                 time2pixels(start), height+0.9, HzToHuman(freq));
 349
 350 }
 351
 352
 353 void svg_partial_wakeline(u64 start, int row1, char *desc1, int row2, char *desc2)
 354 {
 355         double height;
 356
 357         if (!svgfile)
 358                 return;
 359
 360
 361         if (row1 < row2) {
 362                 if (row1) {
 363                         fprintf(svgfile, "<line x1=\"%4.8f\" y1=\"%4.2f\" x2=\"%4.8f\" y2=\"%4.2f\" style=\"stroke:rgb(32,255,32);stroke-width:0.009\"/>\n",
 364                                 time2pixels(start), row1 * SLOT_MULT + SLOT_HEIGHT,  time2pixels(start), row1 * SLOT_MULT + SLOT_HEIGHT + SLOT_MULT/32);
 365                         if (desc2)
 366                                 fprintf(svgfile, "<g transform=\"translate(%4.8f,%4.8f)\"><text transform=\"rotate(90)\" font-size=\"0.02pt\">%s &gt;</text></g>\n",
 367                                         time2pixels(start), row1 * SLOT_MULT + SLOT_HEIGHT + SLOT_HEIGHT/48, desc2);
 368                 }
 369                 if (row2) {
 370                         fprintf(svgfile, "<line x1=\"%4.8f\" y1=\"%4.2f\" x2=\"%4.8f\" y2=\"%4.2f\" style=\"stroke:rgb(32,255,32);stroke-width:0.009\"/>\n",
 371                                 time2pixels(start), row2 * SLOT_MULT - SLOT_MULT/32,  time2pixels(start), row2 * SLOT_MULT);
 372                         if (desc1)
 373                                 fprintf(svgfile, "<g transform=\"translate(%4.8f,%4.8f)\"><text transform=\"rotate(90)\" font-size=\"0.02pt\">%s &gt;</text></g>\n",
 374                                         time2pixels(start), row2 * SLOT_MULT - SLOT_MULT/32, desc1);
 375                 }
 376         } else {
 377                 if (row2) {
 378                         fprintf(svgfile, "<line x1=\"%4.8f\" y1=\"%4.2f\" x2=\"%4.8f\" y2=\"%4.2f\" style=\"stroke:rgb(32,255,32);stroke-width:0.009\"/>\n",
 379                                 time2pixels(start), row2 * SLOT_MULT + SLOT_HEIGHT,  time2pixels(start), row2 * SLOT_MULT + SLOT_HEIGHT + SLOT_MULT/32);
 380                         if (desc1)
 381                                 fprintf(svgfile, "<g transform=\"translate(%4.8f,%4.8f)\"><text transform=\"rotate(90)\" font-size=\"0.02pt\">%s &lt;</text></g>\n",
 382                                         time2pixels(start), row2 * SLOT_MULT + SLOT_HEIGHT + SLOT_MULT/48, desc1);
 383                 }
 384                 if (row1) {
 385                         fprintf(svgfile, "<line x1=\"%4.8f\" y1=\"%4.2f\" x2=\"%4.8f\" y2=\"%4.2f\" style=\"stroke:rgb(32,255,32);stroke-width:0.009\"/>\n",
 386                                 time2pixels(start), row1 * SLOT_MULT - SLOT_MULT/32,  time2pixels(start), row1 * SLOT_MULT);
 387                         if (desc2)
 388                                 fprintf(svgfile, "<g transform=\"translate(%4.8f,%4.8f)\"><text transform=\"rotate(90)\" font-size=\"0.02pt\">%s &lt;</text></g>\n",
 389                                         time2pixels(start), row1 * SLOT_MULT - SLOT_HEIGHT/32, desc2);
 390                 }
 391         }
 392         height = row1 * SLOT_MULT;
 393         if (row2 > row1)
 394                 height += SLOT_HEIGHT;
 395         if (row1)
 396                 fprintf(svgfile, "<circle  cx=\"%4.8f\" cy=\"%4.2f\" r = \"0.01\"  style=\"fill:rgb(32,255,32)\"/>\n",
 397                         time2pixels(start), height);
 398 }
 399
 400 void svg_wakeline(u64 start, int row1, int row2)
 401 {
 402         double height;
 403
 404         if (!svgfile)
 405                 return;
 406
 407
 408         if (row1 < row2)
 409                 fprintf(svgfile, "<line x1=\"%4.8f\" y1=\"%4.2f\" x2=\"%4.8f\" y2=\"%4.2f\" style=\"stroke:rgb(32,255,32);stroke-width:0.009\"/>\n",
 410                         time2pixels(start), row1 * SLOT_MULT + SLOT_HEIGHT,  time2pixels(start), row2 * SLOT_MULT);
 411         else
 412                 fprintf(svgfile, "<line x1=\"%4.8f\" y1=\"%4.2f\" x2=\"%4.8f\" y2=\"%4.2f\" style=\"stroke:rgb(32,255,32);stroke-width:0.009\"/>\n",
 413                         time2pixels(start), row2 * SLOT_MULT + SLOT_HEIGHT,  time2pixels(start), row1 * SLOT_MULT);
 414
 415         height = row1 * SLOT_MULT;
 416         if (row2 > row1)
 417                 height += SLOT_HEIGHT;
 418         fprintf(svgfile, "<circle  cx=\"%4.8f\" cy=\"%4.2f\" r = \"0.01\"  style=\"fill:rgb(32,255,32)\"/>\n",
 419                         time2pixels(start), height);
 420 }
 421
 422 void svg_interrupt(u64 start, int row)
 423 {
 424         if (!svgfile)
 425                 return;
 426
 427         fprintf(svgfile, "<circle  cx=\"%4.8f\" cy=\"%4.2f\" r = \"0.01\"  style=\"fill:rgb(255,128,128)\"/>\n",
 428                         time2pixels(start), row * SLOT_MULT);
 429         fprintf(svgfile, "<circle  cx=\"%4.8f\" cy=\"%4.2f\" r = \"0.01\"  style=\"fill:rgb(255,128,128)\"/>\n",
 430                         time2pixels(start), row * SLOT_MULT + SLOT_HEIGHT);
 431 }
 432
 433 void svg_text(int Yslot, u64 start, const char *text)
 434 {
 435         if (!svgfile)
 436                 return;
 437
 438         fprintf(svgfile, "<text x=\"%4.8f\" y=\"%4.8f\">%s</text>\n",
 439                 time2pixels(start), Yslot * SLOT_MULT+SLOT_HEIGHT/2, text);
 440 }
 441
 442 static void svg_legenda_box(int X, const char *text, const char *style)
 443 {
 444         double boxsize;
 445         boxsize = SLOT_HEIGHT / 2;
 446
 447         fprintf(svgfile, "<rect x=\"%i\" width=\"%4.8f\" y=\"0\" height=\"%4.1f\" class=\"%s\"/>\n",
 448                 X, boxsize, boxsize, style);
 449         fprintf(svgfile, "<text transform=\"translate(%4.8f, %4.8f)\" font-size=\"%4.8fpt\">%s</text>\n",
 450                 X + boxsize + 5, boxsize, 0.8 * boxsize, text);
 451 }
 452
 453 void svg_legenda(void)
 454 {
 455         if (!svgfile)
 456                 return;
 457
 458         svg_legenda_box(0,      "Running", "sample");
 459         svg_legenda_box(100,    "Idle","c1");
 460         svg_legenda_box(200,    "Deeper Idle", "c3");
 461         svg_legenda_box(350,    "Deepest Idle", "c6");
 462         svg_legenda_box(550,    "Sleeping", "process2");
 463         svg_legenda_box(650,    "Waiting for cpu", "waiting");
 464         svg_legenda_box(800,    "Blocked on IO", "blocked");
 465 }
 466
 467 void svg_time_grid(void)
 468 {
 469         u64 i;
 470
 471         if (!svgfile)
 472                 return;
 473
 474         i = first_time;
 475         while (i < last_time) {
 476                 int color = 220;
 477                 double thickness = 0.075;
 478                 if ((i % 100000000) == 0) {
 479                         thickness = 0.5;
 480                         color = 192;
 481                 }
 482                 if ((i % 1000000000) == 0) {
 483                         thickness = 2.0;
 484                         color = 128;
 485                 }
 486
 487                 fprintf(svgfile, "<line x1=\"%4.8f\" y1=\"%4.2f\" x2=\"%4.8f\" y2=\"%" PRIu64 "\" style=\"stroke:rgb(%i,%i,%i);stroke-width:%1.3f\"/>\n",
 488                         time2pixels(i), SLOT_MULT/2, time2pixels(i), total_height, color, color, color, thickness);
 489
 490                 i += 10000000;
 491         }
 492 }
 493
 494 void svg_close(void)
 495 {
 496         if (svgfile) {
 497                 fprintf(svgfile, "</svg>\n");
 498                 fclose(svgfile);
 499                 svgfile = NULL;
 500         }
 501 }