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