xref: /openbmc/linux/tools/perf/util/svghelper.c (revision 65417d9f)
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 #include <linux/bitmap.h>
21 #include <linux/time64.h>
22 
23 #include "perf.h"
24 #include "svghelper.h"
25 #include "util.h"
26 #include "cpumap.h"
27 
28 static u64 first_time, last_time;
29 static u64 turbo_frequency, max_freq;
30 
31 
32 #define SLOT_MULT 30.0
33 #define SLOT_HEIGHT 25.0
34 #define SLOT_HALF (SLOT_HEIGHT / 2)
35 
36 int svg_page_width = 1000;
37 u64 svg_highlight;
38 const char *svg_highlight_name;
39 
40 #define MIN_TEXT_SIZE 0.01
41 
42 static u64 total_height;
43 static FILE *svgfile;
44 
45 static double cpu2slot(int cpu)
46 {
47 	return 2 * cpu + 1;
48 }
49 
50 static int *topology_map;
51 
52 static double cpu2y(int cpu)
53 {
54 	if (topology_map)
55 		return cpu2slot(topology_map[cpu]) * SLOT_MULT;
56 	else
57 		return cpu2slot(cpu) * SLOT_MULT;
58 }
59 
60 static double time2pixels(u64 __time)
61 {
62 	double X;
63 
64 	X = 1.0 * svg_page_width * (__time - first_time) / (last_time - first_time);
65 	return X;
66 }
67 
68 /*
69  * Round text sizes so that the svg viewer only needs a discrete
70  * number of renderings of the font
71  */
72 static double round_text_size(double size)
73 {
74 	int loop = 100;
75 	double target = 10.0;
76 
77 	if (size >= 10.0)
78 		return size;
79 	while (loop--) {
80 		if (size >= target)
81 			return target;
82 		target = target / 2.0;
83 	}
84 	return size;
85 }
86 
87 void open_svg(const char *filename, int cpus, int rows, u64 start, u64 end)
88 {
89 	int new_width;
90 
91 	svgfile = fopen(filename, "w");
92 	if (!svgfile) {
93 		fprintf(stderr, "Cannot open %s for output\n", filename);
94 		return;
95 	}
96 	first_time = start;
97 	first_time = first_time / 100000000 * 100000000;
98 	last_time = end;
99 
100 	/*
101 	 * if the recording is short, we default to a width of 1000, but
102 	 * for longer recordings we want at least 200 units of width per second
103 	 */
104 	new_width = (last_time - first_time) / 5000000;
105 
106 	if (new_width > svg_page_width)
107 		svg_page_width = new_width;
108 
109 	total_height = (1 + rows + cpu2slot(cpus)) * SLOT_MULT;
110 	fprintf(svgfile, "<?xml version=\"1.0\" standalone=\"no\"?> \n");
111 	fprintf(svgfile, "<!DOCTYPE svg SYSTEM \"http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd\">\n");
112 	fprintf(svgfile, "<svg width=\"%i\" height=\"%" PRIu64 "\" version=\"1.1\" xmlns=\"http://www.w3.org/2000/svg\">\n", svg_page_width, total_height);
113 
114 	fprintf(svgfile, "<defs>\n  <style type=\"text/css\">\n    <![CDATA[\n");
115 
116 	fprintf(svgfile, "      rect          { stroke-width: 1; }\n");
117 	fprintf(svgfile, "      rect.process  { fill:rgb(180,180,180); fill-opacity:0.9; stroke-width:1;   stroke:rgb(  0,  0,  0); } \n");
118 	fprintf(svgfile, "      rect.process2 { fill:rgb(180,180,180); fill-opacity:0.9; stroke-width:0;   stroke:rgb(  0,  0,  0); } \n");
119 	fprintf(svgfile, "      rect.process3 { fill:rgb(180,180,180); fill-opacity:0.5; stroke-width:0;   stroke:rgb(  0,  0,  0); } \n");
120 	fprintf(svgfile, "      rect.sample   { fill:rgb(  0,  0,255); fill-opacity:0.8; stroke-width:0;   stroke:rgb(  0,  0,  0); } \n");
121 	fprintf(svgfile, "      rect.sample_hi{ fill:rgb(255,128,  0); fill-opacity:0.8; stroke-width:0;   stroke:rgb(  0,  0,  0); } \n");
122 	fprintf(svgfile, "      rect.error    { fill:rgb(255,  0,  0); fill-opacity:0.5; stroke-width:0;   stroke:rgb(  0,  0,  0); } \n");
123 	fprintf(svgfile, "      rect.net      { fill:rgb(  0,128,  0); fill-opacity:0.5; stroke-width:0;   stroke:rgb(  0,  0,  0); } \n");
124 	fprintf(svgfile, "      rect.disk     { fill:rgb(  0,  0,255); fill-opacity:0.5; stroke-width:0;   stroke:rgb(  0,  0,  0); } \n");
125 	fprintf(svgfile, "      rect.sync     { fill:rgb(128,128,  0); fill-opacity:0.5; stroke-width:0;   stroke:rgb(  0,  0,  0); } \n");
126 	fprintf(svgfile, "      rect.poll     { fill:rgb(  0,128,128); fill-opacity:0.2; stroke-width:0;   stroke:rgb(  0,  0,  0); } \n");
127 	fprintf(svgfile, "      rect.blocked  { fill:rgb(255,  0,  0); fill-opacity:0.5; stroke-width:0;   stroke:rgb(  0,  0,  0); } \n");
128 	fprintf(svgfile, "      rect.waiting  { fill:rgb(224,214,  0); fill-opacity:0.8; stroke-width:0;   stroke:rgb(  0,  0,  0); } \n");
129 	fprintf(svgfile, "      rect.WAITING  { fill:rgb(255,214, 48); fill-opacity:0.6; stroke-width:0;   stroke:rgb(  0,  0,  0); } \n");
130 	fprintf(svgfile, "      rect.cpu      { fill:rgb(192,192,192); fill-opacity:0.2; stroke-width:0.5; stroke:rgb(128,128,128); } \n");
131 	fprintf(svgfile, "      rect.pstate   { fill:rgb(128,128,128); fill-opacity:0.8; stroke-width:0; } \n");
132 	fprintf(svgfile, "      rect.c1       { fill:rgb(255,214,214); fill-opacity:0.5; stroke-width:0; } \n");
133 	fprintf(svgfile, "      rect.c2       { fill:rgb(255,172,172); fill-opacity:0.5; stroke-width:0; } \n");
134 	fprintf(svgfile, "      rect.c3       { fill:rgb(255,130,130); fill-opacity:0.5; stroke-width:0; } \n");
135 	fprintf(svgfile, "      rect.c4       { fill:rgb(255, 88, 88); fill-opacity:0.5; stroke-width:0; } \n");
136 	fprintf(svgfile, "      rect.c5       { fill:rgb(255, 44, 44); fill-opacity:0.5; stroke-width:0; } \n");
137 	fprintf(svgfile, "      rect.c6       { fill:rgb(255,  0,  0); fill-opacity:0.5; stroke-width:0; } \n");
138 	fprintf(svgfile, "      line.pstate   { stroke:rgb(255,255,  0); stroke-opacity:0.8; stroke-width:2; } \n");
139 
140 	fprintf(svgfile, "    ]]>\n   </style>\n</defs>\n");
141 }
142 
143 static double normalize_height(double height)
144 {
145 	if (height < 0.25)
146 		return 0.25;
147 	else if (height < 0.50)
148 		return 0.50;
149 	else if (height < 0.75)
150 		return 0.75;
151 	else
152 		return 0.100;
153 }
154 
155 void svg_ubox(int Yslot, u64 start, u64 end, double height, const char *type, int fd, int err, int merges)
156 {
157 	double w = time2pixels(end) - time2pixels(start);
158 	height = normalize_height(height);
159 
160 	if (!svgfile)
161 		return;
162 
163 	fprintf(svgfile, "<g>\n");
164 	fprintf(svgfile, "<title>fd=%d error=%d merges=%d</title>\n", fd, err, merges);
165 	fprintf(svgfile, "<rect x=\"%.8f\" width=\"%.8f\" y=\"%.1f\" height=\"%.1f\" class=\"%s\"/>\n",
166 		time2pixels(start),
167 		w,
168 		Yslot * SLOT_MULT,
169 		SLOT_HALF * height,
170 		type);
171 	fprintf(svgfile, "</g>\n");
172 }
173 
174 void svg_lbox(int Yslot, u64 start, u64 end, double height, const char *type, int fd, int err, int merges)
175 {
176 	double w = time2pixels(end) - time2pixels(start);
177 	height = normalize_height(height);
178 
179 	if (!svgfile)
180 		return;
181 
182 	fprintf(svgfile, "<g>\n");
183 	fprintf(svgfile, "<title>fd=%d error=%d merges=%d</title>\n", fd, err, merges);
184 	fprintf(svgfile, "<rect x=\"%.8f\" width=\"%.8f\" y=\"%.1f\" height=\"%.1f\" class=\"%s\"/>\n",
185 		time2pixels(start),
186 		w,
187 		Yslot * SLOT_MULT + SLOT_HEIGHT - SLOT_HALF * height,
188 		SLOT_HALF * height,
189 		type);
190 	fprintf(svgfile, "</g>\n");
191 }
192 
193 void svg_fbox(int Yslot, u64 start, u64 end, double height, const char *type, int fd, int err, int merges)
194 {
195 	double w = time2pixels(end) - time2pixels(start);
196 	height = normalize_height(height);
197 
198 	if (!svgfile)
199 		return;
200 
201 	fprintf(svgfile, "<g>\n");
202 	fprintf(svgfile, "<title>fd=%d error=%d merges=%d</title>\n", fd, err, merges);
203 	fprintf(svgfile, "<rect x=\"%.8f\" width=\"%.8f\" y=\"%.1f\" height=\"%.1f\" class=\"%s\"/>\n",
204 		time2pixels(start),
205 		w,
206 		Yslot * SLOT_MULT + SLOT_HEIGHT - SLOT_HEIGHT * height,
207 		SLOT_HEIGHT * height,
208 		type);
209 	fprintf(svgfile, "</g>\n");
210 }
211 
212 void svg_box(int Yslot, u64 start, u64 end, const char *type)
213 {
214 	if (!svgfile)
215 		return;
216 
217 	fprintf(svgfile, "<rect x=\"%.8f\" width=\"%.8f\" y=\"%.1f\" height=\"%.1f\" class=\"%s\"/>\n",
218 		time2pixels(start), time2pixels(end)-time2pixels(start), Yslot * SLOT_MULT, SLOT_HEIGHT, type);
219 }
220 
221 static char *time_to_string(u64 duration);
222 void svg_blocked(int Yslot, int cpu, u64 start, u64 end, const char *backtrace)
223 {
224 	if (!svgfile)
225 		return;
226 
227 	fprintf(svgfile, "<g>\n");
228 	fprintf(svgfile, "<title>#%d blocked %s</title>\n", cpu,
229 		time_to_string(end - start));
230 	if (backtrace)
231 		fprintf(svgfile, "<desc>Blocked on:\n%s</desc>\n", backtrace);
232 	svg_box(Yslot, start, end, "blocked");
233 	fprintf(svgfile, "</g>\n");
234 }
235 
236 void svg_running(int Yslot, int cpu, u64 start, u64 end, const char *backtrace)
237 {
238 	double text_size;
239 	const char *type;
240 
241 	if (!svgfile)
242 		return;
243 
244 	if (svg_highlight && end - start > svg_highlight)
245 		type = "sample_hi";
246 	else
247 		type = "sample";
248 	fprintf(svgfile, "<g>\n");
249 
250 	fprintf(svgfile, "<title>#%d running %s</title>\n",
251 		cpu, time_to_string(end - start));
252 	if (backtrace)
253 		fprintf(svgfile, "<desc>Switched because:\n%s</desc>\n", backtrace);
254 	fprintf(svgfile, "<rect x=\"%.8f\" width=\"%.8f\" y=\"%.1f\" height=\"%.1f\" class=\"%s\"/>\n",
255 		time2pixels(start), time2pixels(end)-time2pixels(start), Yslot * SLOT_MULT, SLOT_HEIGHT,
256 		type);
257 
258 	text_size = (time2pixels(end)-time2pixels(start));
259 	if (cpu > 9)
260 		text_size = text_size/2;
261 	if (text_size > 1.25)
262 		text_size = 1.25;
263 	text_size = round_text_size(text_size);
264 
265 	if (text_size > MIN_TEXT_SIZE)
266 		fprintf(svgfile, "<text x=\"%.8f\" y=\"%.8f\" font-size=\"%.8fpt\">%i</text>\n",
267 			time2pixels(start), Yslot *  SLOT_MULT + SLOT_HEIGHT - 1, text_size,  cpu + 1);
268 
269 	fprintf(svgfile, "</g>\n");
270 }
271 
272 static char *time_to_string(u64 duration)
273 {
274 	static char text[80];
275 
276 	text[0] = 0;
277 
278 	if (duration < NSEC_PER_USEC) /* less than 1 usec */
279 		return text;
280 
281 	if (duration < NSEC_PER_MSEC) { /* less than 1 msec */
282 		sprintf(text, "%.1f us", duration / (double)NSEC_PER_USEC);
283 		return text;
284 	}
285 	sprintf(text, "%.1f ms", duration / (double)NSEC_PER_MSEC);
286 
287 	return text;
288 }
289 
290 void svg_waiting(int Yslot, int cpu, u64 start, u64 end, const char *backtrace)
291 {
292 	char *text;
293 	const char *style;
294 	double font_size;
295 
296 	if (!svgfile)
297 		return;
298 
299 	style = "waiting";
300 
301 	if (end-start > 10 * NSEC_PER_MSEC) /* 10 msec */
302 		style = "WAITING";
303 
304 	text = time_to_string(end-start);
305 
306 	font_size = 1.0 * (time2pixels(end)-time2pixels(start));
307 
308 	if (font_size > 3)
309 		font_size = 3;
310 
311 	font_size = round_text_size(font_size);
312 
313 	fprintf(svgfile, "<g transform=\"translate(%.8f,%.8f)\">\n", time2pixels(start), Yslot * SLOT_MULT);
314 	fprintf(svgfile, "<title>#%d waiting %s</title>\n", cpu, time_to_string(end - start));
315 	if (backtrace)
316 		fprintf(svgfile, "<desc>Waiting on:\n%s</desc>\n", backtrace);
317 	fprintf(svgfile, "<rect x=\"0\" width=\"%.8f\" y=\"0\" height=\"%.1f\" class=\"%s\"/>\n",
318 		time2pixels(end)-time2pixels(start), SLOT_HEIGHT, style);
319 	if (font_size > MIN_TEXT_SIZE)
320 		fprintf(svgfile, "<text transform=\"rotate(90)\" font-size=\"%.8fpt\"> %s</text>\n",
321 			font_size, text);
322 	fprintf(svgfile, "</g>\n");
323 }
324 
325 static char *cpu_model(void)
326 {
327 	static char cpu_m[255];
328 	char buf[256];
329 	FILE *file;
330 
331 	cpu_m[0] = 0;
332 	/* CPU type */
333 	file = fopen("/proc/cpuinfo", "r");
334 	if (file) {
335 		while (fgets(buf, 255, file)) {
336 			if (strstr(buf, "model name")) {
337 				strncpy(cpu_m, &buf[13], 255);
338 				break;
339 			}
340 		}
341 		fclose(file);
342 	}
343 
344 	/* CPU type */
345 	file = fopen("/sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies", "r");
346 	if (file) {
347 		while (fgets(buf, 255, file)) {
348 			unsigned int freq;
349 			freq = strtoull(buf, NULL, 10);
350 			if (freq > max_freq)
351 				max_freq = freq;
352 		}
353 		fclose(file);
354 	}
355 	return cpu_m;
356 }
357 
358 void svg_cpu_box(int cpu, u64 __max_freq, u64 __turbo_freq)
359 {
360 	char cpu_string[80];
361 	if (!svgfile)
362 		return;
363 
364 	max_freq = __max_freq;
365 	turbo_frequency = __turbo_freq;
366 
367 	fprintf(svgfile, "<g>\n");
368 
369 	fprintf(svgfile, "<rect x=\"%.8f\" width=\"%.8f\" y=\"%.1f\" height=\"%.1f\" class=\"cpu\"/>\n",
370 		time2pixels(first_time),
371 		time2pixels(last_time)-time2pixels(first_time),
372 		cpu2y(cpu), SLOT_MULT+SLOT_HEIGHT);
373 
374 	sprintf(cpu_string, "CPU %i", (int)cpu);
375 	fprintf(svgfile, "<text x=\"%.8f\" y=\"%.8f\">%s</text>\n",
376 		10+time2pixels(first_time), cpu2y(cpu) + SLOT_HEIGHT/2, cpu_string);
377 
378 	fprintf(svgfile, "<text transform=\"translate(%.8f,%.8f)\" font-size=\"1.25pt\">%s</text>\n",
379 		10+time2pixels(first_time), cpu2y(cpu) + SLOT_MULT + SLOT_HEIGHT - 4, cpu_model());
380 
381 	fprintf(svgfile, "</g>\n");
382 }
383 
384 void svg_process(int cpu, u64 start, u64 end, int pid, const char *name, const char *backtrace)
385 {
386 	double width;
387 	const char *type;
388 
389 	if (!svgfile)
390 		return;
391 
392 	if (svg_highlight && end - start >= svg_highlight)
393 		type = "sample_hi";
394 	else if (svg_highlight_name && strstr(name, svg_highlight_name))
395 		type = "sample_hi";
396 	else
397 		type = "sample";
398 
399 	fprintf(svgfile, "<g transform=\"translate(%.8f,%.8f)\">\n", time2pixels(start), cpu2y(cpu));
400 	fprintf(svgfile, "<title>%d %s running %s</title>\n", pid, name, time_to_string(end - start));
401 	if (backtrace)
402 		fprintf(svgfile, "<desc>Switched because:\n%s</desc>\n", backtrace);
403 	fprintf(svgfile, "<rect x=\"0\" width=\"%.8f\" y=\"0\" height=\"%.1f\" class=\"%s\"/>\n",
404 		time2pixels(end)-time2pixels(start), SLOT_MULT+SLOT_HEIGHT, type);
405 	width = time2pixels(end)-time2pixels(start);
406 	if (width > 6)
407 		width = 6;
408 
409 	width = round_text_size(width);
410 
411 	if (width > MIN_TEXT_SIZE)
412 		fprintf(svgfile, "<text transform=\"rotate(90)\" font-size=\"%.8fpt\">%s</text>\n",
413 			width, name);
414 
415 	fprintf(svgfile, "</g>\n");
416 }
417 
418 void svg_cstate(int cpu, u64 start, u64 end, int type)
419 {
420 	double width;
421 	char style[128];
422 
423 	if (!svgfile)
424 		return;
425 
426 
427 	fprintf(svgfile, "<g>\n");
428 
429 	if (type > 6)
430 		type = 6;
431 	sprintf(style, "c%i", type);
432 
433 	fprintf(svgfile, "<rect class=\"%s\" x=\"%.8f\" width=\"%.8f\" y=\"%.1f\" height=\"%.1f\"/>\n",
434 		style,
435 		time2pixels(start), time2pixels(end)-time2pixels(start),
436 		cpu2y(cpu), SLOT_MULT+SLOT_HEIGHT);
437 
438 	width = (time2pixels(end)-time2pixels(start))/2.0;
439 	if (width > 6)
440 		width = 6;
441 
442 	width = round_text_size(width);
443 
444 	if (width > MIN_TEXT_SIZE)
445 		fprintf(svgfile, "<text x=\"%.8f\" y=\"%.8f\" font-size=\"%.8fpt\">C%i</text>\n",
446 			time2pixels(start), cpu2y(cpu)+width, width, type);
447 
448 	fprintf(svgfile, "</g>\n");
449 }
450 
451 static char *HzToHuman(unsigned long hz)
452 {
453 	static char buffer[1024];
454 	unsigned long long Hz;
455 
456 	memset(buffer, 0, 1024);
457 
458 	Hz = hz;
459 
460 	/* default: just put the Number in */
461 	sprintf(buffer, "%9lli", Hz);
462 
463 	if (Hz > 1000)
464 		sprintf(buffer, " %6lli Mhz", (Hz+500)/1000);
465 
466 	if (Hz > 1500000)
467 		sprintf(buffer, " %6.2f Ghz", (Hz+5000.0)/1000000);
468 
469 	if (Hz == turbo_frequency)
470 		sprintf(buffer, "Turbo");
471 
472 	return buffer;
473 }
474 
475 void svg_pstate(int cpu, u64 start, u64 end, u64 freq)
476 {
477 	double height = 0;
478 
479 	if (!svgfile)
480 		return;
481 
482 	fprintf(svgfile, "<g>\n");
483 
484 	if (max_freq)
485 		height = freq * 1.0 / max_freq * (SLOT_HEIGHT + SLOT_MULT);
486 	height = 1 + cpu2y(cpu) + SLOT_MULT + SLOT_HEIGHT - height;
487 	fprintf(svgfile, "<line x1=\"%.8f\" x2=\"%.8f\" y1=\"%.1f\" y2=\"%.1f\" class=\"pstate\"/>\n",
488 		time2pixels(start), time2pixels(end), height, height);
489 	fprintf(svgfile, "<text x=\"%.8f\" y=\"%.8f\" font-size=\"0.25pt\">%s</text>\n",
490 		time2pixels(start), height+0.9, HzToHuman(freq));
491 
492 	fprintf(svgfile, "</g>\n");
493 }
494 
495 
496 void svg_partial_wakeline(u64 start, int row1, char *desc1, int row2, char *desc2, const char *backtrace)
497 {
498 	double height;
499 
500 	if (!svgfile)
501 		return;
502 
503 
504 	fprintf(svgfile, "<g>\n");
505 
506 	fprintf(svgfile, "<title>%s wakes up %s</title>\n",
507 		desc1 ? desc1 : "?",
508 		desc2 ? desc2 : "?");
509 
510 	if (backtrace)
511 		fprintf(svgfile, "<desc>%s</desc>\n", backtrace);
512 
513 	if (row1 < row2) {
514 		if (row1) {
515 			fprintf(svgfile, "<line x1=\"%.8f\" y1=\"%.2f\" x2=\"%.8f\" y2=\"%.2f\" style=\"stroke:rgb(32,255,32);stroke-width:0.009\"/>\n",
516 				time2pixels(start), row1 * SLOT_MULT + SLOT_HEIGHT,  time2pixels(start), row1 * SLOT_MULT + SLOT_HEIGHT + SLOT_MULT/32);
517 			if (desc2)
518 				fprintf(svgfile, "<g transform=\"translate(%.8f,%.8f)\"><text transform=\"rotate(90)\" font-size=\"0.02pt\">%s &gt;</text></g>\n",
519 					time2pixels(start), row1 * SLOT_MULT + SLOT_HEIGHT + SLOT_HEIGHT/48, desc2);
520 		}
521 		if (row2) {
522 			fprintf(svgfile, "<line x1=\"%.8f\" y1=\"%.2f\" x2=\"%.8f\" y2=\"%.2f\" style=\"stroke:rgb(32,255,32);stroke-width:0.009\"/>\n",
523 				time2pixels(start), row2 * SLOT_MULT - SLOT_MULT/32,  time2pixels(start), row2 * SLOT_MULT);
524 			if (desc1)
525 				fprintf(svgfile, "<g transform=\"translate(%.8f,%.8f)\"><text transform=\"rotate(90)\" font-size=\"0.02pt\">%s &gt;</text></g>\n",
526 					time2pixels(start), row2 * SLOT_MULT - SLOT_MULT/32, desc1);
527 		}
528 	} else {
529 		if (row2) {
530 			fprintf(svgfile, "<line x1=\"%.8f\" y1=\"%.2f\" x2=\"%.8f\" y2=\"%.2f\" style=\"stroke:rgb(32,255,32);stroke-width:0.009\"/>\n",
531 				time2pixels(start), row2 * SLOT_MULT + SLOT_HEIGHT,  time2pixels(start), row2 * SLOT_MULT + SLOT_HEIGHT + SLOT_MULT/32);
532 			if (desc1)
533 				fprintf(svgfile, "<g transform=\"translate(%.8f,%.8f)\"><text transform=\"rotate(90)\" font-size=\"0.02pt\">%s &lt;</text></g>\n",
534 					time2pixels(start), row2 * SLOT_MULT + SLOT_HEIGHT + SLOT_MULT/48, desc1);
535 		}
536 		if (row1) {
537 			fprintf(svgfile, "<line x1=\"%.8f\" y1=\"%.2f\" x2=\"%.8f\" y2=\"%.2f\" style=\"stroke:rgb(32,255,32);stroke-width:0.009\"/>\n",
538 				time2pixels(start), row1 * SLOT_MULT - SLOT_MULT/32,  time2pixels(start), row1 * SLOT_MULT);
539 			if (desc2)
540 				fprintf(svgfile, "<g transform=\"translate(%.8f,%.8f)\"><text transform=\"rotate(90)\" font-size=\"0.02pt\">%s &lt;</text></g>\n",
541 					time2pixels(start), row1 * SLOT_MULT - SLOT_HEIGHT/32, desc2);
542 		}
543 	}
544 	height = row1 * SLOT_MULT;
545 	if (row2 > row1)
546 		height += SLOT_HEIGHT;
547 	if (row1)
548 		fprintf(svgfile, "<circle  cx=\"%.8f\" cy=\"%.2f\" r = \"0.01\"  style=\"fill:rgb(32,255,32)\"/>\n",
549 			time2pixels(start), height);
550 
551 	fprintf(svgfile, "</g>\n");
552 }
553 
554 void svg_wakeline(u64 start, int row1, int row2, const char *backtrace)
555 {
556 	double height;
557 
558 	if (!svgfile)
559 		return;
560 
561 
562 	fprintf(svgfile, "<g>\n");
563 
564 	if (backtrace)
565 		fprintf(svgfile, "<desc>%s</desc>\n", backtrace);
566 
567 	if (row1 < row2)
568 		fprintf(svgfile, "<line x1=\"%.8f\" y1=\"%.2f\" x2=\"%.8f\" y2=\"%.2f\" style=\"stroke:rgb(32,255,32);stroke-width:0.009\"/>\n",
569 			time2pixels(start), row1 * SLOT_MULT + SLOT_HEIGHT,  time2pixels(start), row2 * SLOT_MULT);
570 	else
571 		fprintf(svgfile, "<line x1=\"%.8f\" y1=\"%.2f\" x2=\"%.8f\" y2=\"%.2f\" style=\"stroke:rgb(32,255,32);stroke-width:0.009\"/>\n",
572 			time2pixels(start), row2 * SLOT_MULT + SLOT_HEIGHT,  time2pixels(start), row1 * SLOT_MULT);
573 
574 	height = row1 * SLOT_MULT;
575 	if (row2 > row1)
576 		height += SLOT_HEIGHT;
577 	fprintf(svgfile, "<circle  cx=\"%.8f\" cy=\"%.2f\" r = \"0.01\"  style=\"fill:rgb(32,255,32)\"/>\n",
578 			time2pixels(start), height);
579 
580 	fprintf(svgfile, "</g>\n");
581 }
582 
583 void svg_interrupt(u64 start, int row, const char *backtrace)
584 {
585 	if (!svgfile)
586 		return;
587 
588 	fprintf(svgfile, "<g>\n");
589 
590 	fprintf(svgfile, "<title>Wakeup from interrupt</title>\n");
591 
592 	if (backtrace)
593 		fprintf(svgfile, "<desc>%s</desc>\n", backtrace);
594 
595 	fprintf(svgfile, "<circle  cx=\"%.8f\" cy=\"%.2f\" r = \"0.01\"  style=\"fill:rgb(255,128,128)\"/>\n",
596 			time2pixels(start), row * SLOT_MULT);
597 	fprintf(svgfile, "<circle  cx=\"%.8f\" cy=\"%.2f\" r = \"0.01\"  style=\"fill:rgb(255,128,128)\"/>\n",
598 			time2pixels(start), row * SLOT_MULT + SLOT_HEIGHT);
599 
600 	fprintf(svgfile, "</g>\n");
601 }
602 
603 void svg_text(int Yslot, u64 start, const char *text)
604 {
605 	if (!svgfile)
606 		return;
607 
608 	fprintf(svgfile, "<text x=\"%.8f\" y=\"%.8f\">%s</text>\n",
609 		time2pixels(start), Yslot * SLOT_MULT+SLOT_HEIGHT/2, text);
610 }
611 
612 static void svg_legenda_box(int X, const char *text, const char *style)
613 {
614 	double boxsize;
615 	boxsize = SLOT_HEIGHT / 2;
616 
617 	fprintf(svgfile, "<rect x=\"%i\" width=\"%.8f\" y=\"0\" height=\"%.1f\" class=\"%s\"/>\n",
618 		X, boxsize, boxsize, style);
619 	fprintf(svgfile, "<text transform=\"translate(%.8f, %.8f)\" font-size=\"%.8fpt\">%s</text>\n",
620 		X + boxsize + 5, boxsize, 0.8 * boxsize, text);
621 }
622 
623 void svg_io_legenda(void)
624 {
625 	if (!svgfile)
626 		return;
627 
628 	fprintf(svgfile, "<g>\n");
629 	svg_legenda_box(0,	"Disk", "disk");
630 	svg_legenda_box(100,	"Network", "net");
631 	svg_legenda_box(200,	"Sync", "sync");
632 	svg_legenda_box(300,	"Poll", "poll");
633 	svg_legenda_box(400,	"Error", "error");
634 	fprintf(svgfile, "</g>\n");
635 }
636 
637 void svg_legenda(void)
638 {
639 	if (!svgfile)
640 		return;
641 
642 	fprintf(svgfile, "<g>\n");
643 	svg_legenda_box(0,	"Running", "sample");
644 	svg_legenda_box(100,	"Idle","c1");
645 	svg_legenda_box(200,	"Deeper Idle", "c3");
646 	svg_legenda_box(350,	"Deepest Idle", "c6");
647 	svg_legenda_box(550,	"Sleeping", "process2");
648 	svg_legenda_box(650,	"Waiting for cpu", "waiting");
649 	svg_legenda_box(800,	"Blocked on IO", "blocked");
650 	fprintf(svgfile, "</g>\n");
651 }
652 
653 void svg_time_grid(double min_thickness)
654 {
655 	u64 i;
656 
657 	if (!svgfile)
658 		return;
659 
660 	i = first_time;
661 	while (i < last_time) {
662 		int color = 220;
663 		double thickness = 0.075;
664 		if ((i % 100000000) == 0) {
665 			thickness = 0.5;
666 			color = 192;
667 		}
668 		if ((i % 1000000000) == 0) {
669 			thickness = 2.0;
670 			color = 128;
671 		}
672 
673 		if (thickness >= min_thickness)
674 			fprintf(svgfile, "<line x1=\"%.8f\" y1=\"%.2f\" x2=\"%.8f\" y2=\"%" PRIu64 "\" style=\"stroke:rgb(%i,%i,%i);stroke-width:%.3f\"/>\n",
675 				time2pixels(i), SLOT_MULT/2, time2pixels(i),
676 				total_height, color, color, color, thickness);
677 
678 		i += 10000000;
679 	}
680 }
681 
682 void svg_close(void)
683 {
684 	if (svgfile) {
685 		fprintf(svgfile, "</svg>\n");
686 		fclose(svgfile);
687 		svgfile = NULL;
688 	}
689 }
690 
691 #define cpumask_bits(maskp) ((maskp)->bits)
692 typedef struct { DECLARE_BITMAP(bits, MAX_NR_CPUS); } cpumask_t;
693 
694 struct topology {
695 	cpumask_t *sib_core;
696 	int sib_core_nr;
697 	cpumask_t *sib_thr;
698 	int sib_thr_nr;
699 };
700 
701 static void scan_thread_topology(int *map, struct topology *t, int cpu, int *pos)
702 {
703 	int i;
704 	int thr;
705 
706 	for (i = 0; i < t->sib_thr_nr; i++) {
707 		if (!test_bit(cpu, cpumask_bits(&t->sib_thr[i])))
708 			continue;
709 
710 		for_each_set_bit(thr,
711 				 cpumask_bits(&t->sib_thr[i]),
712 				 MAX_NR_CPUS)
713 			if (map[thr] == -1)
714 				map[thr] = (*pos)++;
715 	}
716 }
717 
718 static void scan_core_topology(int *map, struct topology *t)
719 {
720 	int pos = 0;
721 	int i;
722 	int cpu;
723 
724 	for (i = 0; i < t->sib_core_nr; i++)
725 		for_each_set_bit(cpu,
726 				 cpumask_bits(&t->sib_core[i]),
727 				 MAX_NR_CPUS)
728 			scan_thread_topology(map, t, cpu, &pos);
729 }
730 
731 static int str_to_bitmap(char *s, cpumask_t *b)
732 {
733 	int i;
734 	int ret = 0;
735 	struct cpu_map *m;
736 	int c;
737 
738 	m = cpu_map__new(s);
739 	if (!m)
740 		return -1;
741 
742 	for (i = 0; i < m->nr; i++) {
743 		c = m->map[i];
744 		if (c >= MAX_NR_CPUS) {
745 			ret = -1;
746 			break;
747 		}
748 
749 		set_bit(c, cpumask_bits(b));
750 	}
751 
752 	cpu_map__put(m);
753 
754 	return ret;
755 }
756 
757 int svg_build_topology_map(char *sib_core, int sib_core_nr,
758 			   char *sib_thr, int sib_thr_nr)
759 {
760 	int i;
761 	struct topology t;
762 
763 	t.sib_core_nr = sib_core_nr;
764 	t.sib_thr_nr = sib_thr_nr;
765 	t.sib_core = calloc(sib_core_nr, sizeof(cpumask_t));
766 	t.sib_thr = calloc(sib_thr_nr, sizeof(cpumask_t));
767 
768 	if (!t.sib_core || !t.sib_thr) {
769 		fprintf(stderr, "topology: no memory\n");
770 		goto exit;
771 	}
772 
773 	for (i = 0; i < sib_core_nr; i++) {
774 		if (str_to_bitmap(sib_core, &t.sib_core[i])) {
775 			fprintf(stderr, "topology: can't parse siblings map\n");
776 			goto exit;
777 		}
778 
779 		sib_core += strlen(sib_core) + 1;
780 	}
781 
782 	for (i = 0; i < sib_thr_nr; i++) {
783 		if (str_to_bitmap(sib_thr, &t.sib_thr[i])) {
784 			fprintf(stderr, "topology: can't parse siblings map\n");
785 			goto exit;
786 		}
787 
788 		sib_thr += strlen(sib_thr) + 1;
789 	}
790 
791 	topology_map = malloc(sizeof(int) * MAX_NR_CPUS);
792 	if (!topology_map) {
793 		fprintf(stderr, "topology: no memory\n");
794 		goto exit;
795 	}
796 
797 	for (i = 0; i < MAX_NR_CPUS; i++)
798 		topology_map[i] = -1;
799 
800 	scan_core_topology(topology_map, &t);
801 
802 	return 0;
803 
804 exit:
805 	zfree(&t.sib_core);
806 	zfree(&t.sib_thr);
807 
808 	return -1;
809 }
810