2 * svghelper.c - helper functions for outputting svg
4 * (C) Copyright 2009 Intel Corporation
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
20 #include <linux/bitops.h>
23 #include "svghelper.h"
26 static u64 first_time, last_time;
27 static u64 turbo_frequency, max_freq;
30 #define SLOT_MULT 30.0
31 #define SLOT_HEIGHT 25.0
33 int svg_page_width = 1000;
35 const char *svg_highlight_name;
37 #define MIN_TEXT_SIZE 0.01
39 static u64 total_height;
42 static double cpu2slot(int cpu)
47 static int *topology_map;
49 static double cpu2y(int cpu)
52 return cpu2slot(topology_map[cpu]) * SLOT_MULT;
54 return cpu2slot(cpu) * SLOT_MULT;
57 static double time2pixels(u64 __time)
61 X = 1.0 * svg_page_width * (__time - first_time) / (last_time - first_time);
66 * Round text sizes so that the svg viewer only needs a discrete
67 * number of renderings of the font
69 static double round_text_size(double size)
79 target = target / 2.0;
84 void open_svg(const char *filename, int cpus, int rows, u64 start, u64 end)
88 svgfile = fopen(filename, "w");
90 fprintf(stderr, "Cannot open %s for output\n", filename);
94 first_time = first_time / 100000000 * 100000000;
98 * if the recording is short, we default to a width of 1000, but
99 * for longer recordings we want at least 200 units of width per second
101 new_width = (last_time - first_time) / 5000000;
103 if (new_width > svg_page_width)
104 svg_page_width = new_width;
106 total_height = (1 + rows + cpu2slot(cpus)) * SLOT_MULT;
107 fprintf(svgfile, "<?xml version=\"1.0\" standalone=\"no\"?> \n");
108 fprintf(svgfile, "<!DOCTYPE svg SYSTEM \"http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd\">\n");
109 fprintf(svgfile, "<svg width=\"%i\" height=\"%" PRIu64 "\" version=\"1.1\" xmlns=\"http://www.w3.org/2000/svg\">\n", svg_page_width, total_height);
111 fprintf(svgfile, "<defs>\n <style type=\"text/css\">\n <![CDATA[\n");
113 fprintf(svgfile, " rect { stroke-width: 1; }\n");
114 fprintf(svgfile, " rect.process { fill:rgb(180,180,180); fill-opacity:0.9; stroke-width:1; stroke:rgb( 0, 0, 0); } \n");
115 fprintf(svgfile, " rect.process2 { fill:rgb(180,180,180); fill-opacity:0.9; stroke-width:0; stroke:rgb( 0, 0, 0); } \n");
116 fprintf(svgfile, " rect.sample { fill:rgb( 0, 0,255); fill-opacity:0.8; stroke-width:0; stroke:rgb( 0, 0, 0); } \n");
117 fprintf(svgfile, " rect.sample_hi{ fill:rgb(255,128, 0); fill-opacity:0.8; stroke-width:0; stroke:rgb( 0, 0, 0); } \n");
118 fprintf(svgfile, " rect.blocked { fill:rgb(255, 0, 0); fill-opacity:0.5; stroke-width:0; stroke:rgb( 0, 0, 0); } \n");
119 fprintf(svgfile, " rect.waiting { fill:rgb(224,214, 0); fill-opacity:0.8; stroke-width:0; stroke:rgb( 0, 0, 0); } \n");
120 fprintf(svgfile, " rect.WAITING { fill:rgb(255,214, 48); fill-opacity:0.6; stroke-width:0; stroke:rgb( 0, 0, 0); } \n");
121 fprintf(svgfile, " rect.cpu { fill:rgb(192,192,192); fill-opacity:0.2; stroke-width:0.5; stroke:rgb(128,128,128); } \n");
122 fprintf(svgfile, " rect.pstate { fill:rgb(128,128,128); fill-opacity:0.8; stroke-width:0; } \n");
123 fprintf(svgfile, " rect.c1 { fill:rgb(255,214,214); fill-opacity:0.5; stroke-width:0; } \n");
124 fprintf(svgfile, " rect.c2 { fill:rgb(255,172,172); fill-opacity:0.5; stroke-width:0; } \n");
125 fprintf(svgfile, " rect.c3 { fill:rgb(255,130,130); fill-opacity:0.5; stroke-width:0; } \n");
126 fprintf(svgfile, " rect.c4 { fill:rgb(255, 88, 88); fill-opacity:0.5; stroke-width:0; } \n");
127 fprintf(svgfile, " rect.c5 { fill:rgb(255, 44, 44); fill-opacity:0.5; stroke-width:0; } \n");
128 fprintf(svgfile, " rect.c6 { fill:rgb(255, 0, 0); fill-opacity:0.5; stroke-width:0; } \n");
129 fprintf(svgfile, " line.pstate { stroke:rgb(255,255, 0); stroke-opacity:0.8; stroke-width:2; } \n");
131 fprintf(svgfile, " ]]>\n </style>\n</defs>\n");
134 void svg_box(int Yslot, u64 start, u64 end, const char *type)
139 fprintf(svgfile, "<rect x=\"%4.8f\" width=\"%4.8f\" y=\"%4.1f\" height=\"%4.1f\" class=\"%s\"/>\n",
140 time2pixels(start), time2pixels(end)-time2pixels(start), Yslot * SLOT_MULT, SLOT_HEIGHT, type);
143 static char *time_to_string(u64 duration);
144 void svg_blocked(int Yslot, int cpu, u64 start, u64 end, const char *backtrace)
149 fprintf(svgfile, "<g>\n");
150 fprintf(svgfile, "<title>#%d blocked %s</title>\n", cpu,
151 time_to_string(end - start));
153 fprintf(svgfile, "<desc>Blocked on:\n%s</desc>\n", backtrace);
154 svg_box(Yslot, start, end, "blocked");
155 fprintf(svgfile, "</g>\n");
158 void svg_running(int Yslot, int cpu, u64 start, u64 end, const char *backtrace)
166 if (svg_highlight && end - start > svg_highlight)
170 fprintf(svgfile, "<g>\n");
172 fprintf(svgfile, "<title>#%d running %s</title>\n",
173 cpu, time_to_string(end - start));
175 fprintf(svgfile, "<desc>Switched because:\n%s</desc>\n", backtrace);
176 fprintf(svgfile, "<rect x=\"%4.8f\" width=\"%4.8f\" y=\"%4.1f\" height=\"%4.1f\" class=\"%s\"/>\n",
177 time2pixels(start), time2pixels(end)-time2pixels(start), Yslot * SLOT_MULT, SLOT_HEIGHT,
180 text_size = (time2pixels(end)-time2pixels(start));
182 text_size = text_size/2;
183 if (text_size > 1.25)
185 text_size = round_text_size(text_size);
187 if (text_size > MIN_TEXT_SIZE)
188 fprintf(svgfile, "<text x=\"%1.8f\" y=\"%1.8f\" font-size=\"%1.8fpt\">%i</text>\n",
189 time2pixels(start), Yslot * SLOT_MULT + SLOT_HEIGHT - 1, text_size, cpu + 1);
191 fprintf(svgfile, "</g>\n");
194 static char *time_to_string(u64 duration)
196 static char text[80];
200 if (duration < 1000) /* less than 1 usec */
203 if (duration < 1000 * 1000) { /* less than 1 msec */
204 sprintf(text, "%4.1f us", duration / 1000.0);
207 sprintf(text, "%4.1f ms", duration / 1000.0 / 1000);
212 void svg_waiting(int Yslot, int cpu, u64 start, u64 end, const char *backtrace)
223 if (end-start > 10 * 1000000) /* 10 msec */
226 text = time_to_string(end-start);
228 font_size = 1.0 * (time2pixels(end)-time2pixels(start));
233 font_size = round_text_size(font_size);
235 fprintf(svgfile, "<g transform=\"translate(%4.8f,%4.8f)\">\n", time2pixels(start), Yslot * SLOT_MULT);
236 fprintf(svgfile, "<title>#%d waiting %s</title>\n", cpu, time_to_string(end - start));
238 fprintf(svgfile, "<desc>Waiting on:\n%s</desc>\n", backtrace);
239 fprintf(svgfile, "<rect x=\"0\" width=\"%4.8f\" y=\"0\" height=\"%4.1f\" class=\"%s\"/>\n",
240 time2pixels(end)-time2pixels(start), SLOT_HEIGHT, style);
241 if (font_size > MIN_TEXT_SIZE)
242 fprintf(svgfile, "<text transform=\"rotate(90)\" font-size=\"%1.8fpt\"> %s</text>\n",
244 fprintf(svgfile, "</g>\n");
247 static char *cpu_model(void)
249 static char cpu_m[255];
255 file = fopen("/proc/cpuinfo", "r");
257 while (fgets(buf, 255, file)) {
258 if (strstr(buf, "model name")) {
259 strncpy(cpu_m, &buf[13], 255);
267 file = fopen("/sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies", "r");
269 while (fgets(buf, 255, file)) {
271 freq = strtoull(buf, NULL, 10);
280 void svg_cpu_box(int cpu, u64 __max_freq, u64 __turbo_freq)
286 max_freq = __max_freq;
287 turbo_frequency = __turbo_freq;
289 fprintf(svgfile, "<g>\n");
291 fprintf(svgfile, "<rect x=\"%4.8f\" width=\"%4.8f\" y=\"%4.1f\" height=\"%4.1f\" class=\"cpu\"/>\n",
292 time2pixels(first_time),
293 time2pixels(last_time)-time2pixels(first_time),
294 cpu2y(cpu), SLOT_MULT+SLOT_HEIGHT);
296 sprintf(cpu_string, "CPU %i", (int)cpu);
297 fprintf(svgfile, "<text x=\"%4.8f\" y=\"%4.8f\">%s</text>\n",
298 10+time2pixels(first_time), cpu2y(cpu) + SLOT_HEIGHT/2, cpu_string);
300 fprintf(svgfile, "<text transform=\"translate(%4.8f,%4.8f)\" font-size=\"1.25pt\">%s</text>\n",
301 10+time2pixels(first_time), cpu2y(cpu) + SLOT_MULT + SLOT_HEIGHT - 4, cpu_model());
303 fprintf(svgfile, "</g>\n");
306 void svg_process(int cpu, u64 start, u64 end, int pid, const char *name, const char *backtrace)
314 if (svg_highlight && end - start >= svg_highlight)
316 else if (svg_highlight_name && strstr(name, svg_highlight_name))
321 fprintf(svgfile, "<g transform=\"translate(%4.8f,%4.8f)\">\n", time2pixels(start), cpu2y(cpu));
322 fprintf(svgfile, "<title>%d %s running %s</title>\n", pid, name, time_to_string(end - start));
324 fprintf(svgfile, "<desc>Switched because:\n%s</desc>\n", backtrace);
325 fprintf(svgfile, "<rect x=\"0\" width=\"%4.8f\" y=\"0\" height=\"%4.1f\" class=\"%s\"/>\n",
326 time2pixels(end)-time2pixels(start), SLOT_MULT+SLOT_HEIGHT, type);
327 width = time2pixels(end)-time2pixels(start);
331 width = round_text_size(width);
333 if (width > MIN_TEXT_SIZE)
334 fprintf(svgfile, "<text transform=\"rotate(90)\" font-size=\"%3.8fpt\">%s</text>\n",
337 fprintf(svgfile, "</g>\n");
340 void svg_cstate(int cpu, u64 start, u64 end, int type)
349 fprintf(svgfile, "<g>\n");
353 sprintf(style, "c%i", type);
355 fprintf(svgfile, "<rect class=\"%s\" x=\"%4.8f\" width=\"%4.8f\" y=\"%4.1f\" height=\"%4.1f\"/>\n",
357 time2pixels(start), time2pixels(end)-time2pixels(start),
358 cpu2y(cpu), SLOT_MULT+SLOT_HEIGHT);
360 width = (time2pixels(end)-time2pixels(start))/2.0;
364 width = round_text_size(width);
366 if (width > MIN_TEXT_SIZE)
367 fprintf(svgfile, "<text x=\"%4.8f\" y=\"%4.8f\" font-size=\"%3.8fpt\">C%i</text>\n",
368 time2pixels(start), cpu2y(cpu)+width, width, type);
370 fprintf(svgfile, "</g>\n");
373 static char *HzToHuman(unsigned long hz)
375 static char buffer[1024];
376 unsigned long long Hz;
378 memset(buffer, 0, 1024);
382 /* default: just put the Number in */
383 sprintf(buffer, "%9lli", Hz);
386 sprintf(buffer, " %6lli Mhz", (Hz+500)/1000);
389 sprintf(buffer, " %6.2f Ghz", (Hz+5000.0)/1000000);
391 if (Hz == turbo_frequency)
392 sprintf(buffer, "Turbo");
397 void svg_pstate(int cpu, u64 start, u64 end, u64 freq)
404 fprintf(svgfile, "<g>\n");
407 height = freq * 1.0 / max_freq * (SLOT_HEIGHT + SLOT_MULT);
408 height = 1 + cpu2y(cpu) + SLOT_MULT + SLOT_HEIGHT - height;
409 fprintf(svgfile, "<line x1=\"%4.8f\" x2=\"%4.8f\" y1=\"%4.1f\" y2=\"%4.1f\" class=\"pstate\"/>\n",
410 time2pixels(start), time2pixels(end), height, height);
411 fprintf(svgfile, "<text x=\"%4.8f\" y=\"%4.8f\" font-size=\"0.25pt\">%s</text>\n",
412 time2pixels(start), height+0.9, HzToHuman(freq));
414 fprintf(svgfile, "</g>\n");
418 void svg_partial_wakeline(u64 start, int row1, char *desc1, int row2, char *desc2, const char *backtrace)
426 fprintf(svgfile, "<g>\n");
428 fprintf(svgfile, "<title>%s wakes up %s</title>\n",
430 desc2 ? desc2 : "?");
433 fprintf(svgfile, "<desc>%s</desc>\n", backtrace);
437 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",
438 time2pixels(start), row1 * SLOT_MULT + SLOT_HEIGHT, time2pixels(start), row1 * SLOT_MULT + SLOT_HEIGHT + SLOT_MULT/32);
440 fprintf(svgfile, "<g transform=\"translate(%4.8f,%4.8f)\"><text transform=\"rotate(90)\" font-size=\"0.02pt\">%s ></text></g>\n",
441 time2pixels(start), row1 * SLOT_MULT + SLOT_HEIGHT + SLOT_HEIGHT/48, desc2);
444 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",
445 time2pixels(start), row2 * SLOT_MULT - SLOT_MULT/32, time2pixels(start), row2 * SLOT_MULT);
447 fprintf(svgfile, "<g transform=\"translate(%4.8f,%4.8f)\"><text transform=\"rotate(90)\" font-size=\"0.02pt\">%s ></text></g>\n",
448 time2pixels(start), row2 * SLOT_MULT - SLOT_MULT/32, desc1);
452 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",
453 time2pixels(start), row2 * SLOT_MULT + SLOT_HEIGHT, time2pixels(start), row2 * SLOT_MULT + SLOT_HEIGHT + SLOT_MULT/32);
455 fprintf(svgfile, "<g transform=\"translate(%4.8f,%4.8f)\"><text transform=\"rotate(90)\" font-size=\"0.02pt\">%s <</text></g>\n",
456 time2pixels(start), row2 * SLOT_MULT + SLOT_HEIGHT + SLOT_MULT/48, desc1);
459 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",
460 time2pixels(start), row1 * SLOT_MULT - SLOT_MULT/32, time2pixels(start), row1 * SLOT_MULT);
462 fprintf(svgfile, "<g transform=\"translate(%4.8f,%4.8f)\"><text transform=\"rotate(90)\" font-size=\"0.02pt\">%s <</text></g>\n",
463 time2pixels(start), row1 * SLOT_MULT - SLOT_HEIGHT/32, desc2);
466 height = row1 * SLOT_MULT;
468 height += SLOT_HEIGHT;
470 fprintf(svgfile, "<circle cx=\"%4.8f\" cy=\"%4.2f\" r = \"0.01\" style=\"fill:rgb(32,255,32)\"/>\n",
471 time2pixels(start), height);
473 fprintf(svgfile, "</g>\n");
476 void svg_wakeline(u64 start, int row1, int row2, const char *backtrace)
484 fprintf(svgfile, "<g>\n");
487 fprintf(svgfile, "<desc>%s</desc>\n", backtrace);
490 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",
491 time2pixels(start), row1 * SLOT_MULT + SLOT_HEIGHT, time2pixels(start), row2 * SLOT_MULT);
493 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",
494 time2pixels(start), row2 * SLOT_MULT + SLOT_HEIGHT, time2pixels(start), row1 * SLOT_MULT);
496 height = row1 * SLOT_MULT;
498 height += SLOT_HEIGHT;
499 fprintf(svgfile, "<circle cx=\"%4.8f\" cy=\"%4.2f\" r = \"0.01\" style=\"fill:rgb(32,255,32)\"/>\n",
500 time2pixels(start), height);
502 fprintf(svgfile, "</g>\n");
505 void svg_interrupt(u64 start, int row, const char *backtrace)
510 fprintf(svgfile, "<g>\n");
512 fprintf(svgfile, "<title>Wakeup from interrupt</title>\n");
515 fprintf(svgfile, "<desc>%s</desc>\n", backtrace);
517 fprintf(svgfile, "<circle cx=\"%4.8f\" cy=\"%4.2f\" r = \"0.01\" style=\"fill:rgb(255,128,128)\"/>\n",
518 time2pixels(start), row * SLOT_MULT);
519 fprintf(svgfile, "<circle cx=\"%4.8f\" cy=\"%4.2f\" r = \"0.01\" style=\"fill:rgb(255,128,128)\"/>\n",
520 time2pixels(start), row * SLOT_MULT + SLOT_HEIGHT);
522 fprintf(svgfile, "</g>\n");
525 void svg_text(int Yslot, u64 start, const char *text)
530 fprintf(svgfile, "<text x=\"%4.8f\" y=\"%4.8f\">%s</text>\n",
531 time2pixels(start), Yslot * SLOT_MULT+SLOT_HEIGHT/2, text);
534 static void svg_legenda_box(int X, const char *text, const char *style)
537 boxsize = SLOT_HEIGHT / 2;
539 fprintf(svgfile, "<rect x=\"%i\" width=\"%4.8f\" y=\"0\" height=\"%4.1f\" class=\"%s\"/>\n",
540 X, boxsize, boxsize, style);
541 fprintf(svgfile, "<text transform=\"translate(%4.8f, %4.8f)\" font-size=\"%4.8fpt\">%s</text>\n",
542 X + boxsize + 5, boxsize, 0.8 * boxsize, text);
545 void svg_legenda(void)
550 fprintf(svgfile, "<g>\n");
551 svg_legenda_box(0, "Running", "sample");
552 svg_legenda_box(100, "Idle","c1");
553 svg_legenda_box(200, "Deeper Idle", "c3");
554 svg_legenda_box(350, "Deepest Idle", "c6");
555 svg_legenda_box(550, "Sleeping", "process2");
556 svg_legenda_box(650, "Waiting for cpu", "waiting");
557 svg_legenda_box(800, "Blocked on IO", "blocked");
558 fprintf(svgfile, "</g>\n");
561 void svg_time_grid(void)
569 while (i < last_time) {
571 double thickness = 0.075;
572 if ((i % 100000000) == 0) {
576 if ((i % 1000000000) == 0) {
581 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",
582 time2pixels(i), SLOT_MULT/2, time2pixels(i), total_height, color, color, color, thickness);
591 fprintf(svgfile, "</svg>\n");
597 #define cpumask_bits(maskp) ((maskp)->bits)
598 typedef struct { DECLARE_BITMAP(bits, MAX_NR_CPUS); } cpumask_t;
607 static void scan_thread_topology(int *map, struct topology *t, int cpu, int *pos)
612 for (i = 0; i < t->sib_thr_nr; i++) {
613 if (!test_bit(cpu, cpumask_bits(&t->sib_thr[i])))
616 for_each_set_bit(thr,
617 cpumask_bits(&t->sib_thr[i]),
624 static void scan_core_topology(int *map, struct topology *t)
630 for (i = 0; i < t->sib_core_nr; i++)
631 for_each_set_bit(cpu,
632 cpumask_bits(&t->sib_core[i]),
634 scan_thread_topology(map, t, cpu, &pos);
637 static int str_to_bitmap(char *s, cpumask_t *b)
648 for (i = 0; i < m->nr; i++) {
650 if (c >= MAX_NR_CPUS) {
655 set_bit(c, cpumask_bits(b));
663 int svg_build_topology_map(char *sib_core, int sib_core_nr,
664 char *sib_thr, int sib_thr_nr)
669 t.sib_core_nr = sib_core_nr;
670 t.sib_thr_nr = sib_thr_nr;
671 t.sib_core = calloc(sib_core_nr, sizeof(cpumask_t));
672 t.sib_thr = calloc(sib_thr_nr, sizeof(cpumask_t));
674 if (!t.sib_core || !t.sib_thr) {
675 fprintf(stderr, "topology: no memory\n");
679 for (i = 0; i < sib_core_nr; i++) {
680 if (str_to_bitmap(sib_core, &t.sib_core[i])) {
681 fprintf(stderr, "topology: can't parse siblings map\n");
685 sib_core += strlen(sib_core) + 1;
688 for (i = 0; i < sib_thr_nr; i++) {
689 if (str_to_bitmap(sib_thr, &t.sib_thr[i])) {
690 fprintf(stderr, "topology: can't parse siblings map\n");
694 sib_thr += strlen(sib_thr) + 1;
697 topology_map = malloc(sizeof(int) * MAX_NR_CPUS);
699 fprintf(stderr, "topology: no memory\n");
703 for (i = 0; i < MAX_NR_CPUS; i++)
704 topology_map[i] = -1;
706 scan_core_topology(topology_map, &t);