linux/tools/perf/util/svghelper.c
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   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
  22static u64 first_time, last_time;
  23static u64 turbo_frequency, max_freq;
  24
  25
  26#define SLOT_MULT 30.0
  27#define SLOT_HEIGHT 25.0
  28
  29int svg_page_width = 1000;
  30
  31#define MIN_TEXT_SIZE 0.01
  32
  33static u64 total_height;
  34static FILE *svgfile;
  35
  36static double cpu2slot(int cpu)
  37{
  38        return 2 * cpu + 1;
  39}
  40
  41static double cpu2y(int cpu)
  42{
  43        return cpu2slot(cpu) * SLOT_MULT;
  44}
  45
  46static 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 */
  58static 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
  73void 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
 121void 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
 130void 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
 152static 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
 170void 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
 202static 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
 235void 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
 257void 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
 281void 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
 310static 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
 334void 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
 352void 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
 399void 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
 421void 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
 432void 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
 441static 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
 452void 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
 466void 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
 493void svg_close(void)
 494{
 495        if (svgfile) {
 496                fprintf(svgfile, "</svg>\n");
 497                fclose(svgfile);
 498                svgfile = NULL;
 499        }
 500}
 501