linux/tools/perf/util/svghelper.c
<<
>>
Prefs
   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
  23static u64 first_time, last_time;
  24static u64 turbo_frequency, max_freq;
  25
  26
  27#define SLOT_MULT 30.0
  28#define SLOT_HEIGHT 25.0
  29
  30int svg_page_width = 1000;
  31
  32#define MIN_TEXT_SIZE 0.01
  33
  34static u64 total_height;
  35static FILE *svgfile;
  36
  37static double cpu2slot(int cpu)
  38{
  39        return 2 * cpu + 1;
  40}
  41
  42static double cpu2y(int cpu)
  43{
  44        return cpu2slot(cpu) * SLOT_MULT;
  45}
  46
  47static 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 */
  59static 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
  74void 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
 122void 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
 131void 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
 153static 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
 171void 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
 203static 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
 236void 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
 258void 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
 282void 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
 311static 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
 335void 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
 353void 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
 400void 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
 422void 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
 433void 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
 442static 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
 453void 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
 467void 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
 494void svg_close(void)
 495{
 496        if (svgfile) {
 497                fprintf(svgfile, "</svg>\n");
 498                fclose(svgfile);
 499                svgfile = NULL;
 500        }
 501}
 502