xref: /openbmc/linux/tools/perf/util/svghelper.c (revision b830f94f)
1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3  * svghelper.c - helper functions for outputting svg
4  *
5  * (C) Copyright 2009 Intel Corporation
6  *
7  * Authors:
8  *     Arjan van de Ven <arjan@linux.intel.com>
9  */
10 
11 #include <inttypes.h>
12 #include <stdio.h>
13 #include <stdlib.h>
14 #include <unistd.h>
15 #include <string.h>
16 #include <linux/bitmap.h>
17 #include <linux/time64.h>
18 #include <linux/zalloc.h>
19 
20 #include "perf.h"
21 #include "svghelper.h"
22 #include "cpumap.h"
23 
24 static u64 first_time, last_time;
25 static u64 turbo_frequency, max_freq;
26 
27 
28 #define SLOT_MULT 30.0
29 #define SLOT_HEIGHT 25.0
30 #define SLOT_HALF (SLOT_HEIGHT / 2)
31 
32 int svg_page_width = 1000;
33 u64 svg_highlight;
34 const char *svg_highlight_name;
35 
36 #define MIN_TEXT_SIZE 0.01
37 
38 static u64 total_height;
39 static FILE *svgfile;
40 
41 static double cpu2slot(int cpu)
42 {
43 	return 2 * cpu + 1;
44 }
45 
46 static int *topology_map;
47 
48 static double cpu2y(int cpu)
49 {
50 	if (topology_map)
51 		return cpu2slot(topology_map[cpu]) * SLOT_MULT;
52 	else
53 		return cpu2slot(cpu) * SLOT_MULT;
54 }
55 
56 static double time2pixels(u64 __time)
57 {
58 	double X;
59 
60 	X = 1.0 * svg_page_width * (__time - first_time) / (last_time - first_time);
61 	return X;
62 }
63 
64 /*
65  * Round text sizes so that the svg viewer only needs a discrete
66  * number of renderings of the font
67  */
68 static double round_text_size(double size)
69 {
70 	int loop = 100;
71 	double target = 10.0;
72 
73 	if (size >= 10.0)
74 		return size;
75 	while (loop--) {
76 		if (size >= target)
77 			return target;
78 		target = target / 2.0;
79 	}
80 	return size;
81 }
82 
83 void open_svg(const char *filename, int cpus, int rows, u64 start, u64 end)
84 {
85 	int new_width;
86 
87 	svgfile = fopen(filename, "w");
88 	if (!svgfile) {
89 		fprintf(stderr, "Cannot open %s for output\n", filename);
90 		return;
91 	}
92 	first_time = start;
93 	first_time = first_time / 100000000 * 100000000;
94 	last_time = end;
95 
96 	/*
97 	 * if the recording is short, we default to a width of 1000, but
98 	 * for longer recordings we want at least 200 units of width per second
99 	 */
100 	new_width = (last_time - first_time) / 5000000;
101 
102 	if (new_width > svg_page_width)
103 		svg_page_width = new_width;
104 
105 	total_height = (1 + rows + cpu2slot(cpus)) * SLOT_MULT;
106 	fprintf(svgfile, "<?xml version=\"1.0\" standalone=\"no\"?> \n");
107 	fprintf(svgfile, "<!DOCTYPE svg SYSTEM \"http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd\">\n");
108 	fprintf(svgfile, "<svg width=\"%i\" height=\"%" PRIu64 "\" version=\"1.1\" xmlns=\"http://www.w3.org/2000/svg\">\n", svg_page_width, total_height);
109 
110 	fprintf(svgfile, "<defs>\n  <style type=\"text/css\">\n    <![CDATA[\n");
111 
112 	fprintf(svgfile, "      rect          { stroke-width: 1; }\n");
113 	fprintf(svgfile, "      rect.process  { fill:rgb(180,180,180); fill-opacity:0.9; stroke-width:1;   stroke:rgb(  0,  0,  0); } \n");
114 	fprintf(svgfile, "      rect.process2 { fill:rgb(180,180,180); fill-opacity:0.9; stroke-width:0;   stroke:rgb(  0,  0,  0); } \n");
115 	fprintf(svgfile, "      rect.process3 { fill:rgb(180,180,180); fill-opacity:0.5; 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.error    { fill:rgb(255,  0,  0); fill-opacity:0.5; stroke-width:0;   stroke:rgb(  0,  0,  0); } \n");
119 	fprintf(svgfile, "      rect.net      { fill:rgb(  0,128,  0); fill-opacity:0.5; stroke-width:0;   stroke:rgb(  0,  0,  0); } \n");
120 	fprintf(svgfile, "      rect.disk     { fill:rgb(  0,  0,255); fill-opacity:0.5; stroke-width:0;   stroke:rgb(  0,  0,  0); } \n");
121 	fprintf(svgfile, "      rect.sync     { fill:rgb(128,128,  0); fill-opacity:0.5; stroke-width:0;   stroke:rgb(  0,  0,  0); } \n");
122 	fprintf(svgfile, "      rect.poll     { fill:rgb(  0,128,128); fill-opacity:0.2; stroke-width:0;   stroke:rgb(  0,  0,  0); } \n");
123 	fprintf(svgfile, "      rect.blocked  { fill:rgb(255,  0,  0); fill-opacity:0.5; stroke-width:0;   stroke:rgb(  0,  0,  0); } \n");
124 	fprintf(svgfile, "      rect.waiting  { fill:rgb(224,214,  0); fill-opacity:0.8; stroke-width:0;   stroke:rgb(  0,  0,  0); } \n");
125 	fprintf(svgfile, "      rect.WAITING  { fill:rgb(255,214, 48); fill-opacity:0.6; stroke-width:0;   stroke:rgb(  0,  0,  0); } \n");
126 	fprintf(svgfile, "      rect.cpu      { fill:rgb(192,192,192); fill-opacity:0.2; stroke-width:0.5; stroke:rgb(128,128,128); } \n");
127 	fprintf(svgfile, "      rect.pstate   { fill:rgb(128,128,128); fill-opacity:0.8; stroke-width:0; } \n");
128 	fprintf(svgfile, "      rect.c1       { fill:rgb(255,214,214); fill-opacity:0.5; stroke-width:0; } \n");
129 	fprintf(svgfile, "      rect.c2       { fill:rgb(255,172,172); fill-opacity:0.5; stroke-width:0; } \n");
130 	fprintf(svgfile, "      rect.c3       { fill:rgb(255,130,130); fill-opacity:0.5; stroke-width:0; } \n");
131 	fprintf(svgfile, "      rect.c4       { fill:rgb(255, 88, 88); fill-opacity:0.5; stroke-width:0; } \n");
132 	fprintf(svgfile, "      rect.c5       { fill:rgb(255, 44, 44); fill-opacity:0.5; stroke-width:0; } \n");
133 	fprintf(svgfile, "      rect.c6       { fill:rgb(255,  0,  0); fill-opacity:0.5; stroke-width:0; } \n");
134 	fprintf(svgfile, "      line.pstate   { stroke:rgb(255,255,  0); stroke-opacity:0.8; stroke-width:2; } \n");
135 
136 	fprintf(svgfile, "    ]]>\n   </style>\n</defs>\n");
137 }
138 
139 static double normalize_height(double height)
140 {
141 	if (height < 0.25)
142 		return 0.25;
143 	else if (height < 0.50)
144 		return 0.50;
145 	else if (height < 0.75)
146 		return 0.75;
147 	else
148 		return 0.100;
149 }
150 
151 void svg_ubox(int Yslot, u64 start, u64 end, double height, const char *type, int fd, int err, int merges)
152 {
153 	double w = time2pixels(end) - time2pixels(start);
154 	height = normalize_height(height);
155 
156 	if (!svgfile)
157 		return;
158 
159 	fprintf(svgfile, "<g>\n");
160 	fprintf(svgfile, "<title>fd=%d error=%d merges=%d</title>\n", fd, err, merges);
161 	fprintf(svgfile, "<rect x=\"%.8f\" width=\"%.8f\" y=\"%.1f\" height=\"%.1f\" class=\"%s\"/>\n",
162 		time2pixels(start),
163 		w,
164 		Yslot * SLOT_MULT,
165 		SLOT_HALF * height,
166 		type);
167 	fprintf(svgfile, "</g>\n");
168 }
169 
170 void svg_lbox(int Yslot, u64 start, u64 end, double height, const char *type, int fd, int err, int merges)
171 {
172 	double w = time2pixels(end) - time2pixels(start);
173 	height = normalize_height(height);
174 
175 	if (!svgfile)
176 		return;
177 
178 	fprintf(svgfile, "<g>\n");
179 	fprintf(svgfile, "<title>fd=%d error=%d merges=%d</title>\n", fd, err, merges);
180 	fprintf(svgfile, "<rect x=\"%.8f\" width=\"%.8f\" y=\"%.1f\" height=\"%.1f\" class=\"%s\"/>\n",
181 		time2pixels(start),
182 		w,
183 		Yslot * SLOT_MULT + SLOT_HEIGHT - SLOT_HALF * height,
184 		SLOT_HALF * height,
185 		type);
186 	fprintf(svgfile, "</g>\n");
187 }
188 
189 void svg_fbox(int Yslot, u64 start, u64 end, double height, const char *type, int fd, int err, int merges)
190 {
191 	double w = time2pixels(end) - time2pixels(start);
192 	height = normalize_height(height);
193 
194 	if (!svgfile)
195 		return;
196 
197 	fprintf(svgfile, "<g>\n");
198 	fprintf(svgfile, "<title>fd=%d error=%d merges=%d</title>\n", fd, err, merges);
199 	fprintf(svgfile, "<rect x=\"%.8f\" width=\"%.8f\" y=\"%.1f\" height=\"%.1f\" class=\"%s\"/>\n",
200 		time2pixels(start),
201 		w,
202 		Yslot * SLOT_MULT + SLOT_HEIGHT - SLOT_HEIGHT * height,
203 		SLOT_HEIGHT * height,
204 		type);
205 	fprintf(svgfile, "</g>\n");
206 }
207 
208 void svg_box(int Yslot, u64 start, u64 end, const char *type)
209 {
210 	if (!svgfile)
211 		return;
212 
213 	fprintf(svgfile, "<rect x=\"%.8f\" width=\"%.8f\" y=\"%.1f\" height=\"%.1f\" class=\"%s\"/>\n",
214 		time2pixels(start), time2pixels(end)-time2pixels(start), Yslot * SLOT_MULT, SLOT_HEIGHT, type);
215 }
216 
217 static char *time_to_string(u64 duration);
218 void svg_blocked(int Yslot, int cpu, u64 start, u64 end, const char *backtrace)
219 {
220 	if (!svgfile)
221 		return;
222 
223 	fprintf(svgfile, "<g>\n");
224 	fprintf(svgfile, "<title>#%d blocked %s</title>\n", cpu,
225 		time_to_string(end - start));
226 	if (backtrace)
227 		fprintf(svgfile, "<desc>Blocked on:\n%s</desc>\n", backtrace);
228 	svg_box(Yslot, start, end, "blocked");
229 	fprintf(svgfile, "</g>\n");
230 }
231 
232 void svg_running(int Yslot, int cpu, u64 start, u64 end, const char *backtrace)
233 {
234 	double text_size;
235 	const char *type;
236 
237 	if (!svgfile)
238 		return;
239 
240 	if (svg_highlight && end - start > svg_highlight)
241 		type = "sample_hi";
242 	else
243 		type = "sample";
244 	fprintf(svgfile, "<g>\n");
245 
246 	fprintf(svgfile, "<title>#%d running %s</title>\n",
247 		cpu, time_to_string(end - start));
248 	if (backtrace)
249 		fprintf(svgfile, "<desc>Switched because:\n%s</desc>\n", backtrace);
250 	fprintf(svgfile, "<rect x=\"%.8f\" width=\"%.8f\" y=\"%.1f\" height=\"%.1f\" class=\"%s\"/>\n",
251 		time2pixels(start), time2pixels(end)-time2pixels(start), Yslot * SLOT_MULT, SLOT_HEIGHT,
252 		type);
253 
254 	text_size = (time2pixels(end)-time2pixels(start));
255 	if (cpu > 9)
256 		text_size = text_size/2;
257 	if (text_size > 1.25)
258 		text_size = 1.25;
259 	text_size = round_text_size(text_size);
260 
261 	if (text_size > MIN_TEXT_SIZE)
262 		fprintf(svgfile, "<text x=\"%.8f\" y=\"%.8f\" font-size=\"%.8fpt\">%i</text>\n",
263 			time2pixels(start), Yslot *  SLOT_MULT + SLOT_HEIGHT - 1, text_size,  cpu + 1);
264 
265 	fprintf(svgfile, "</g>\n");
266 }
267 
268 static char *time_to_string(u64 duration)
269 {
270 	static char text[80];
271 
272 	text[0] = 0;
273 
274 	if (duration < NSEC_PER_USEC) /* less than 1 usec */
275 		return text;
276 
277 	if (duration < NSEC_PER_MSEC) { /* less than 1 msec */
278 		sprintf(text, "%.1f us", duration / (double)NSEC_PER_USEC);
279 		return text;
280 	}
281 	sprintf(text, "%.1f ms", duration / (double)NSEC_PER_MSEC);
282 
283 	return text;
284 }
285 
286 void svg_waiting(int Yslot, int cpu, u64 start, u64 end, const char *backtrace)
287 {
288 	char *text;
289 	const char *style;
290 	double font_size;
291 
292 	if (!svgfile)
293 		return;
294 
295 	style = "waiting";
296 
297 	if (end-start > 10 * NSEC_PER_MSEC) /* 10 msec */
298 		style = "WAITING";
299 
300 	text = time_to_string(end-start);
301 
302 	font_size = 1.0 * (time2pixels(end)-time2pixels(start));
303 
304 	if (font_size > 3)
305 		font_size = 3;
306 
307 	font_size = round_text_size(font_size);
308 
309 	fprintf(svgfile, "<g transform=\"translate(%.8f,%.8f)\">\n", time2pixels(start), Yslot * SLOT_MULT);
310 	fprintf(svgfile, "<title>#%d waiting %s</title>\n", cpu, time_to_string(end - start));
311 	if (backtrace)
312 		fprintf(svgfile, "<desc>Waiting on:\n%s</desc>\n", backtrace);
313 	fprintf(svgfile, "<rect x=\"0\" width=\"%.8f\" y=\"0\" height=\"%.1f\" class=\"%s\"/>\n",
314 		time2pixels(end)-time2pixels(start), SLOT_HEIGHT, style);
315 	if (font_size > MIN_TEXT_SIZE)
316 		fprintf(svgfile, "<text transform=\"rotate(90)\" font-size=\"%.8fpt\"> %s</text>\n",
317 			font_size, text);
318 	fprintf(svgfile, "</g>\n");
319 }
320 
321 static char *cpu_model(void)
322 {
323 	static char cpu_m[255];
324 	char buf[256];
325 	FILE *file;
326 
327 	cpu_m[0] = 0;
328 	/* CPU type */
329 	file = fopen("/proc/cpuinfo", "r");
330 	if (file) {
331 		while (fgets(buf, 255, file)) {
332 			if (strstr(buf, "model name")) {
333 				strlcpy(cpu_m, &buf[13], 255);
334 				break;
335 			}
336 		}
337 		fclose(file);
338 	}
339 
340 	/* CPU type */
341 	file = fopen("/sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies", "r");
342 	if (file) {
343 		while (fgets(buf, 255, file)) {
344 			unsigned int freq;
345 			freq = strtoull(buf, NULL, 10);
346 			if (freq > max_freq)
347 				max_freq = freq;
348 		}
349 		fclose(file);
350 	}
351 	return cpu_m;
352 }
353 
354 void svg_cpu_box(int cpu, u64 __max_freq, u64 __turbo_freq)
355 {
356 	char cpu_string[80];
357 	if (!svgfile)
358 		return;
359 
360 	max_freq = __max_freq;
361 	turbo_frequency = __turbo_freq;
362 
363 	fprintf(svgfile, "<g>\n");
364 
365 	fprintf(svgfile, "<rect x=\"%.8f\" width=\"%.8f\" y=\"%.1f\" height=\"%.1f\" class=\"cpu\"/>\n",
366 		time2pixels(first_time),
367 		time2pixels(last_time)-time2pixels(first_time),
368 		cpu2y(cpu), SLOT_MULT+SLOT_HEIGHT);
369 
370 	sprintf(cpu_string, "CPU %i", (int)cpu);
371 	fprintf(svgfile, "<text x=\"%.8f\" y=\"%.8f\">%s</text>\n",
372 		10+time2pixels(first_time), cpu2y(cpu) + SLOT_HEIGHT/2, cpu_string);
373 
374 	fprintf(svgfile, "<text transform=\"translate(%.8f,%.8f)\" font-size=\"1.25pt\">%s</text>\n",
375 		10+time2pixels(first_time), cpu2y(cpu) + SLOT_MULT + SLOT_HEIGHT - 4, cpu_model());
376 
377 	fprintf(svgfile, "</g>\n");
378 }
379 
380 void svg_process(int cpu, u64 start, u64 end, int pid, const char *name, const char *backtrace)
381 {
382 	double width;
383 	const char *type;
384 
385 	if (!svgfile)
386 		return;
387 
388 	if (svg_highlight && end - start >= svg_highlight)
389 		type = "sample_hi";
390 	else if (svg_highlight_name && strstr(name, svg_highlight_name))
391 		type = "sample_hi";
392 	else
393 		type = "sample";
394 
395 	fprintf(svgfile, "<g transform=\"translate(%.8f,%.8f)\">\n", time2pixels(start), cpu2y(cpu));
396 	fprintf(svgfile, "<title>%d %s running %s</title>\n", pid, name, time_to_string(end - start));
397 	if (backtrace)
398 		fprintf(svgfile, "<desc>Switched because:\n%s</desc>\n", backtrace);
399 	fprintf(svgfile, "<rect x=\"0\" width=\"%.8f\" y=\"0\" height=\"%.1f\" class=\"%s\"/>\n",
400 		time2pixels(end)-time2pixels(start), SLOT_MULT+SLOT_HEIGHT, type);
401 	width = time2pixels(end)-time2pixels(start);
402 	if (width > 6)
403 		width = 6;
404 
405 	width = round_text_size(width);
406 
407 	if (width > MIN_TEXT_SIZE)
408 		fprintf(svgfile, "<text transform=\"rotate(90)\" font-size=\"%.8fpt\">%s</text>\n",
409 			width, name);
410 
411 	fprintf(svgfile, "</g>\n");
412 }
413 
414 void svg_cstate(int cpu, u64 start, u64 end, int type)
415 {
416 	double width;
417 	char style[128];
418 
419 	if (!svgfile)
420 		return;
421 
422 
423 	fprintf(svgfile, "<g>\n");
424 
425 	if (type > 6)
426 		type = 6;
427 	sprintf(style, "c%i", type);
428 
429 	fprintf(svgfile, "<rect class=\"%s\" x=\"%.8f\" width=\"%.8f\" y=\"%.1f\" height=\"%.1f\"/>\n",
430 		style,
431 		time2pixels(start), time2pixels(end)-time2pixels(start),
432 		cpu2y(cpu), SLOT_MULT+SLOT_HEIGHT);
433 
434 	width = (time2pixels(end)-time2pixels(start))/2.0;
435 	if (width > 6)
436 		width = 6;
437 
438 	width = round_text_size(width);
439 
440 	if (width > MIN_TEXT_SIZE)
441 		fprintf(svgfile, "<text x=\"%.8f\" y=\"%.8f\" font-size=\"%.8fpt\">C%i</text>\n",
442 			time2pixels(start), cpu2y(cpu)+width, width, type);
443 
444 	fprintf(svgfile, "</g>\n");
445 }
446 
447 static char *HzToHuman(unsigned long hz)
448 {
449 	static char buffer[1024];
450 	unsigned long long Hz;
451 
452 	memset(buffer, 0, 1024);
453 
454 	Hz = hz;
455 
456 	/* default: just put the Number in */
457 	sprintf(buffer, "%9lli", Hz);
458 
459 	if (Hz > 1000)
460 		sprintf(buffer, " %6lli Mhz", (Hz+500)/1000);
461 
462 	if (Hz > 1500000)
463 		sprintf(buffer, " %6.2f Ghz", (Hz+5000.0)/1000000);
464 
465 	if (Hz == turbo_frequency)
466 		sprintf(buffer, "Turbo");
467 
468 	return buffer;
469 }
470 
471 void svg_pstate(int cpu, u64 start, u64 end, u64 freq)
472 {
473 	double height = 0;
474 
475 	if (!svgfile)
476 		return;
477 
478 	fprintf(svgfile, "<g>\n");
479 
480 	if (max_freq)
481 		height = freq * 1.0 / max_freq * (SLOT_HEIGHT + SLOT_MULT);
482 	height = 1 + cpu2y(cpu) + SLOT_MULT + SLOT_HEIGHT - height;
483 	fprintf(svgfile, "<line x1=\"%.8f\" x2=\"%.8f\" y1=\"%.1f\" y2=\"%.1f\" class=\"pstate\"/>\n",
484 		time2pixels(start), time2pixels(end), height, height);
485 	fprintf(svgfile, "<text x=\"%.8f\" y=\"%.8f\" font-size=\"0.25pt\">%s</text>\n",
486 		time2pixels(start), height+0.9, HzToHuman(freq));
487 
488 	fprintf(svgfile, "</g>\n");
489 }
490 
491 
492 void svg_partial_wakeline(u64 start, int row1, char *desc1, int row2, char *desc2, const char *backtrace)
493 {
494 	double height;
495 
496 	if (!svgfile)
497 		return;
498 
499 
500 	fprintf(svgfile, "<g>\n");
501 
502 	fprintf(svgfile, "<title>%s wakes up %s</title>\n",
503 		desc1 ? desc1 : "?",
504 		desc2 ? desc2 : "?");
505 
506 	if (backtrace)
507 		fprintf(svgfile, "<desc>%s</desc>\n", backtrace);
508 
509 	if (row1 < row2) {
510 		if (row1) {
511 			fprintf(svgfile, "<line x1=\"%.8f\" y1=\"%.2f\" x2=\"%.8f\" y2=\"%.2f\" style=\"stroke:rgb(32,255,32);stroke-width:0.009\"/>\n",
512 				time2pixels(start), row1 * SLOT_MULT + SLOT_HEIGHT,  time2pixels(start), row1 * SLOT_MULT + SLOT_HEIGHT + SLOT_MULT/32);
513 			if (desc2)
514 				fprintf(svgfile, "<g transform=\"translate(%.8f,%.8f)\"><text transform=\"rotate(90)\" font-size=\"0.02pt\">%s &gt;</text></g>\n",
515 					time2pixels(start), row1 * SLOT_MULT + SLOT_HEIGHT + SLOT_HEIGHT/48, desc2);
516 		}
517 		if (row2) {
518 			fprintf(svgfile, "<line x1=\"%.8f\" y1=\"%.2f\" x2=\"%.8f\" y2=\"%.2f\" style=\"stroke:rgb(32,255,32);stroke-width:0.009\"/>\n",
519 				time2pixels(start), row2 * SLOT_MULT - SLOT_MULT/32,  time2pixels(start), row2 * SLOT_MULT);
520 			if (desc1)
521 				fprintf(svgfile, "<g transform=\"translate(%.8f,%.8f)\"><text transform=\"rotate(90)\" font-size=\"0.02pt\">%s &gt;</text></g>\n",
522 					time2pixels(start), row2 * SLOT_MULT - SLOT_MULT/32, desc1);
523 		}
524 	} else {
525 		if (row2) {
526 			fprintf(svgfile, "<line x1=\"%.8f\" y1=\"%.2f\" x2=\"%.8f\" y2=\"%.2f\" style=\"stroke:rgb(32,255,32);stroke-width:0.009\"/>\n",
527 				time2pixels(start), row2 * SLOT_MULT + SLOT_HEIGHT,  time2pixels(start), row2 * SLOT_MULT + SLOT_HEIGHT + SLOT_MULT/32);
528 			if (desc1)
529 				fprintf(svgfile, "<g transform=\"translate(%.8f,%.8f)\"><text transform=\"rotate(90)\" font-size=\"0.02pt\">%s &lt;</text></g>\n",
530 					time2pixels(start), row2 * SLOT_MULT + SLOT_HEIGHT + SLOT_MULT/48, desc1);
531 		}
532 		if (row1) {
533 			fprintf(svgfile, "<line x1=\"%.8f\" y1=\"%.2f\" x2=\"%.8f\" y2=\"%.2f\" style=\"stroke:rgb(32,255,32);stroke-width:0.009\"/>\n",
534 				time2pixels(start), row1 * SLOT_MULT - SLOT_MULT/32,  time2pixels(start), row1 * SLOT_MULT);
535 			if (desc2)
536 				fprintf(svgfile, "<g transform=\"translate(%.8f,%.8f)\"><text transform=\"rotate(90)\" font-size=\"0.02pt\">%s &lt;</text></g>\n",
537 					time2pixels(start), row1 * SLOT_MULT - SLOT_HEIGHT/32, desc2);
538 		}
539 	}
540 	height = row1 * SLOT_MULT;
541 	if (row2 > row1)
542 		height += SLOT_HEIGHT;
543 	if (row1)
544 		fprintf(svgfile, "<circle  cx=\"%.8f\" cy=\"%.2f\" r = \"0.01\"  style=\"fill:rgb(32,255,32)\"/>\n",
545 			time2pixels(start), height);
546 
547 	fprintf(svgfile, "</g>\n");
548 }
549 
550 void svg_wakeline(u64 start, int row1, int row2, const char *backtrace)
551 {
552 	double height;
553 
554 	if (!svgfile)
555 		return;
556 
557 
558 	fprintf(svgfile, "<g>\n");
559 
560 	if (backtrace)
561 		fprintf(svgfile, "<desc>%s</desc>\n", backtrace);
562 
563 	if (row1 < row2)
564 		fprintf(svgfile, "<line x1=\"%.8f\" y1=\"%.2f\" x2=\"%.8f\" y2=\"%.2f\" style=\"stroke:rgb(32,255,32);stroke-width:0.009\"/>\n",
565 			time2pixels(start), row1 * SLOT_MULT + SLOT_HEIGHT,  time2pixels(start), row2 * SLOT_MULT);
566 	else
567 		fprintf(svgfile, "<line x1=\"%.8f\" y1=\"%.2f\" x2=\"%.8f\" y2=\"%.2f\" style=\"stroke:rgb(32,255,32);stroke-width:0.009\"/>\n",
568 			time2pixels(start), row2 * SLOT_MULT + SLOT_HEIGHT,  time2pixels(start), row1 * SLOT_MULT);
569 
570 	height = row1 * SLOT_MULT;
571 	if (row2 > row1)
572 		height += SLOT_HEIGHT;
573 	fprintf(svgfile, "<circle  cx=\"%.8f\" cy=\"%.2f\" r = \"0.01\"  style=\"fill:rgb(32,255,32)\"/>\n",
574 			time2pixels(start), height);
575 
576 	fprintf(svgfile, "</g>\n");
577 }
578 
579 void svg_interrupt(u64 start, int row, const char *backtrace)
580 {
581 	if (!svgfile)
582 		return;
583 
584 	fprintf(svgfile, "<g>\n");
585 
586 	fprintf(svgfile, "<title>Wakeup from interrupt</title>\n");
587 
588 	if (backtrace)
589 		fprintf(svgfile, "<desc>%s</desc>\n", backtrace);
590 
591 	fprintf(svgfile, "<circle  cx=\"%.8f\" cy=\"%.2f\" r = \"0.01\"  style=\"fill:rgb(255,128,128)\"/>\n",
592 			time2pixels(start), row * SLOT_MULT);
593 	fprintf(svgfile, "<circle  cx=\"%.8f\" cy=\"%.2f\" r = \"0.01\"  style=\"fill:rgb(255,128,128)\"/>\n",
594 			time2pixels(start), row * SLOT_MULT + SLOT_HEIGHT);
595 
596 	fprintf(svgfile, "</g>\n");
597 }
598 
599 void svg_text(int Yslot, u64 start, const char *text)
600 {
601 	if (!svgfile)
602 		return;
603 
604 	fprintf(svgfile, "<text x=\"%.8f\" y=\"%.8f\">%s</text>\n",
605 		time2pixels(start), Yslot * SLOT_MULT+SLOT_HEIGHT/2, text);
606 }
607 
608 static void svg_legenda_box(int X, const char *text, const char *style)
609 {
610 	double boxsize;
611 	boxsize = SLOT_HEIGHT / 2;
612 
613 	fprintf(svgfile, "<rect x=\"%i\" width=\"%.8f\" y=\"0\" height=\"%.1f\" class=\"%s\"/>\n",
614 		X, boxsize, boxsize, style);
615 	fprintf(svgfile, "<text transform=\"translate(%.8f, %.8f)\" font-size=\"%.8fpt\">%s</text>\n",
616 		X + boxsize + 5, boxsize, 0.8 * boxsize, text);
617 }
618 
619 void svg_io_legenda(void)
620 {
621 	if (!svgfile)
622 		return;
623 
624 	fprintf(svgfile, "<g>\n");
625 	svg_legenda_box(0,	"Disk", "disk");
626 	svg_legenda_box(100,	"Network", "net");
627 	svg_legenda_box(200,	"Sync", "sync");
628 	svg_legenda_box(300,	"Poll", "poll");
629 	svg_legenda_box(400,	"Error", "error");
630 	fprintf(svgfile, "</g>\n");
631 }
632 
633 void svg_legenda(void)
634 {
635 	if (!svgfile)
636 		return;
637 
638 	fprintf(svgfile, "<g>\n");
639 	svg_legenda_box(0,	"Running", "sample");
640 	svg_legenda_box(100,	"Idle","c1");
641 	svg_legenda_box(200,	"Deeper Idle", "c3");
642 	svg_legenda_box(350,	"Deepest Idle", "c6");
643 	svg_legenda_box(550,	"Sleeping", "process2");
644 	svg_legenda_box(650,	"Waiting for cpu", "waiting");
645 	svg_legenda_box(800,	"Blocked on IO", "blocked");
646 	fprintf(svgfile, "</g>\n");
647 }
648 
649 void svg_time_grid(double min_thickness)
650 {
651 	u64 i;
652 
653 	if (!svgfile)
654 		return;
655 
656 	i = first_time;
657 	while (i < last_time) {
658 		int color = 220;
659 		double thickness = 0.075;
660 		if ((i % 100000000) == 0) {
661 			thickness = 0.5;
662 			color = 192;
663 		}
664 		if ((i % 1000000000) == 0) {
665 			thickness = 2.0;
666 			color = 128;
667 		}
668 
669 		if (thickness >= min_thickness)
670 			fprintf(svgfile, "<line x1=\"%.8f\" y1=\"%.2f\" x2=\"%.8f\" y2=\"%" PRIu64 "\" style=\"stroke:rgb(%i,%i,%i);stroke-width:%.3f\"/>\n",
671 				time2pixels(i), SLOT_MULT/2, time2pixels(i),
672 				total_height, color, color, color, thickness);
673 
674 		i += 10000000;
675 	}
676 }
677 
678 void svg_close(void)
679 {
680 	if (svgfile) {
681 		fprintf(svgfile, "</svg>\n");
682 		fclose(svgfile);
683 		svgfile = NULL;
684 	}
685 }
686 
687 #define cpumask_bits(maskp) ((maskp)->bits)
688 typedef struct { DECLARE_BITMAP(bits, MAX_NR_CPUS); } cpumask_t;
689 
690 struct topology {
691 	cpumask_t *sib_core;
692 	int sib_core_nr;
693 	cpumask_t *sib_thr;
694 	int sib_thr_nr;
695 };
696 
697 static void scan_thread_topology(int *map, struct topology *t, int cpu, int *pos)
698 {
699 	int i;
700 	int thr;
701 
702 	for (i = 0; i < t->sib_thr_nr; i++) {
703 		if (!test_bit(cpu, cpumask_bits(&t->sib_thr[i])))
704 			continue;
705 
706 		for_each_set_bit(thr,
707 				 cpumask_bits(&t->sib_thr[i]),
708 				 MAX_NR_CPUS)
709 			if (map[thr] == -1)
710 				map[thr] = (*pos)++;
711 	}
712 }
713 
714 static void scan_core_topology(int *map, struct topology *t)
715 {
716 	int pos = 0;
717 	int i;
718 	int cpu;
719 
720 	for (i = 0; i < t->sib_core_nr; i++)
721 		for_each_set_bit(cpu,
722 				 cpumask_bits(&t->sib_core[i]),
723 				 MAX_NR_CPUS)
724 			scan_thread_topology(map, t, cpu, &pos);
725 }
726 
727 static int str_to_bitmap(char *s, cpumask_t *b)
728 {
729 	int i;
730 	int ret = 0;
731 	struct cpu_map *m;
732 	int c;
733 
734 	m = cpu_map__new(s);
735 	if (!m)
736 		return -1;
737 
738 	for (i = 0; i < m->nr; i++) {
739 		c = m->map[i];
740 		if (c >= MAX_NR_CPUS) {
741 			ret = -1;
742 			break;
743 		}
744 
745 		set_bit(c, cpumask_bits(b));
746 	}
747 
748 	cpu_map__put(m);
749 
750 	return ret;
751 }
752 
753 int svg_build_topology_map(char *sib_core, int sib_core_nr,
754 			   char *sib_thr, int sib_thr_nr)
755 {
756 	int i;
757 	struct topology t;
758 
759 	t.sib_core_nr = sib_core_nr;
760 	t.sib_thr_nr = sib_thr_nr;
761 	t.sib_core = calloc(sib_core_nr, sizeof(cpumask_t));
762 	t.sib_thr = calloc(sib_thr_nr, sizeof(cpumask_t));
763 
764 	if (!t.sib_core || !t.sib_thr) {
765 		fprintf(stderr, "topology: no memory\n");
766 		goto exit;
767 	}
768 
769 	for (i = 0; i < sib_core_nr; i++) {
770 		if (str_to_bitmap(sib_core, &t.sib_core[i])) {
771 			fprintf(stderr, "topology: can't parse siblings map\n");
772 			goto exit;
773 		}
774 
775 		sib_core += strlen(sib_core) + 1;
776 	}
777 
778 	for (i = 0; i < sib_thr_nr; i++) {
779 		if (str_to_bitmap(sib_thr, &t.sib_thr[i])) {
780 			fprintf(stderr, "topology: can't parse siblings map\n");
781 			goto exit;
782 		}
783 
784 		sib_thr += strlen(sib_thr) + 1;
785 	}
786 
787 	topology_map = malloc(sizeof(int) * MAX_NR_CPUS);
788 	if (!topology_map) {
789 		fprintf(stderr, "topology: no memory\n");
790 		goto exit;
791 	}
792 
793 	for (i = 0; i < MAX_NR_CPUS; i++)
794 		topology_map[i] = -1;
795 
796 	scan_core_topology(topology_map, &t);
797 
798 	return 0;
799 
800 exit:
801 	zfree(&t.sib_core);
802 	zfree(&t.sib_thr);
803 
804 	return -1;
805 }
806