xref: /openbmc/linux/tools/perf/util/svghelper.c (revision c56f286f)
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/string.h>
18 #include <linux/time64.h>
19 #include <linux/zalloc.h>
20 #include <internal/cpumap.h>
21 #include <perf/cpumap.h>
22 
23 #include "env.h"
24 #include "svghelper.h"
25 
26 static u64 first_time, last_time;
27 static u64 turbo_frequency, max_freq;
28 
29 
30 #define SLOT_MULT 30.0
31 #define SLOT_HEIGHT 25.0
32 #define SLOT_HALF (SLOT_HEIGHT / 2)
33 
34 int svg_page_width = 1000;
35 u64 svg_highlight;
36 const char *svg_highlight_name;
37 
38 #define MIN_TEXT_SIZE 0.01
39 
40 static u64 total_height;
41 static FILE *svgfile;
42 
cpu2slot(int cpu)43 static double cpu2slot(int cpu)
44 {
45 	return 2 * cpu + 1;
46 }
47 
48 static int *topology_map;
49 
cpu2y(int cpu)50 static double cpu2y(int cpu)
51 {
52 	if (topology_map)
53 		return cpu2slot(topology_map[cpu]) * SLOT_MULT;
54 	else
55 		return cpu2slot(cpu) * SLOT_MULT;
56 }
57 
time2pixels(u64 __time)58 static double time2pixels(u64 __time)
59 {
60 	double X;
61 
62 	X = 1.0 * svg_page_width * (__time - first_time) / (last_time - first_time);
63 	return X;
64 }
65 
66 /*
67  * Round text sizes so that the svg viewer only needs a discrete
68  * number of renderings of the font
69  */
round_text_size(double size)70 static double round_text_size(double size)
71 {
72 	int loop = 100;
73 	double target = 10.0;
74 
75 	if (size >= 10.0)
76 		return size;
77 	while (loop--) {
78 		if (size >= target)
79 			return target;
80 		target = target / 2.0;
81 	}
82 	return size;
83 }
84 
open_svg(const char * filename,int cpus,int rows,u64 start,u64 end)85 void open_svg(const char *filename, int cpus, int rows, u64 start, u64 end)
86 {
87 	int new_width;
88 
89 	svgfile = fopen(filename, "w");
90 	if (!svgfile) {
91 		fprintf(stderr, "Cannot open %s for output\n", filename);
92 		return;
93 	}
94 	first_time = start;
95 	first_time = first_time / 100000000 * 100000000;
96 	last_time = end;
97 
98 	/*
99 	 * if the recording is short, we default to a width of 1000, but
100 	 * for longer recordings we want at least 200 units of width per second
101 	 */
102 	new_width = (last_time - first_time) / 5000000;
103 
104 	if (new_width > svg_page_width)
105 		svg_page_width = new_width;
106 
107 	total_height = (1 + rows + cpu2slot(cpus)) * SLOT_MULT;
108 	fprintf(svgfile, "<?xml version=\"1.0\" standalone=\"no\"?> \n");
109 	fprintf(svgfile, "<!DOCTYPE svg SYSTEM \"http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd\">\n");
110 	fprintf(svgfile, "<svg width=\"%i\" height=\"%" PRIu64 "\" version=\"1.1\" xmlns=\"http://www.w3.org/2000/svg\">\n", svg_page_width, total_height);
111 
112 	fprintf(svgfile, "<defs>\n  <style type=\"text/css\">\n    <![CDATA[\n");
113 
114 	fprintf(svgfile, "      rect          { stroke-width: 1; }\n");
115 	fprintf(svgfile, "      rect.process  { fill:rgb(180,180,180); fill-opacity:0.9; stroke-width:1;   stroke:rgb(  0,  0,  0); } \n");
116 	fprintf(svgfile, "      rect.process2 { fill:rgb(180,180,180); fill-opacity:0.9; stroke-width:0;   stroke:rgb(  0,  0,  0); } \n");
117 	fprintf(svgfile, "      rect.process3 { fill:rgb(180,180,180); fill-opacity:0.5; stroke-width:0;   stroke:rgb(  0,  0,  0); } \n");
118 	fprintf(svgfile, "      rect.sample   { fill:rgb(  0,  0,255); fill-opacity:0.8; stroke-width:0;   stroke:rgb(  0,  0,  0); } \n");
119 	fprintf(svgfile, "      rect.sample_hi{ fill:rgb(255,128,  0); fill-opacity:0.8; stroke-width:0;   stroke:rgb(  0,  0,  0); } \n");
120 	fprintf(svgfile, "      rect.error    { fill:rgb(255,  0,  0); fill-opacity:0.5; stroke-width:0;   stroke:rgb(  0,  0,  0); } \n");
121 	fprintf(svgfile, "      rect.net      { fill:rgb(  0,128,  0); fill-opacity:0.5; stroke-width:0;   stroke:rgb(  0,  0,  0); } \n");
122 	fprintf(svgfile, "      rect.disk     { fill:rgb(  0,  0,255); fill-opacity:0.5; stroke-width:0;   stroke:rgb(  0,  0,  0); } \n");
123 	fprintf(svgfile, "      rect.sync     { fill:rgb(128,128,  0); fill-opacity:0.5; stroke-width:0;   stroke:rgb(  0,  0,  0); } \n");
124 	fprintf(svgfile, "      rect.poll     { fill:rgb(  0,128,128); fill-opacity:0.2; stroke-width:0;   stroke:rgb(  0,  0,  0); } \n");
125 	fprintf(svgfile, "      rect.blocked  { fill:rgb(255,  0,  0); fill-opacity:0.5; stroke-width:0;   stroke:rgb(  0,  0,  0); } \n");
126 	fprintf(svgfile, "      rect.waiting  { fill:rgb(224,214,  0); fill-opacity:0.8; stroke-width:0;   stroke:rgb(  0,  0,  0); } \n");
127 	fprintf(svgfile, "      rect.WAITING  { fill:rgb(255,214, 48); fill-opacity:0.6; stroke-width:0;   stroke:rgb(  0,  0,  0); } \n");
128 	fprintf(svgfile, "      rect.cpu      { fill:rgb(192,192,192); fill-opacity:0.2; stroke-width:0.5; stroke:rgb(128,128,128); } \n");
129 	fprintf(svgfile, "      rect.pstate   { fill:rgb(128,128,128); fill-opacity:0.8; stroke-width:0; } \n");
130 	fprintf(svgfile, "      rect.c1       { fill:rgb(255,214,214); fill-opacity:0.5; stroke-width:0; } \n");
131 	fprintf(svgfile, "      rect.c2       { fill:rgb(255,172,172); fill-opacity:0.5; stroke-width:0; } \n");
132 	fprintf(svgfile, "      rect.c3       { fill:rgb(255,130,130); fill-opacity:0.5; stroke-width:0; } \n");
133 	fprintf(svgfile, "      rect.c4       { fill:rgb(255, 88, 88); fill-opacity:0.5; stroke-width:0; } \n");
134 	fprintf(svgfile, "      rect.c5       { fill:rgb(255, 44, 44); fill-opacity:0.5; stroke-width:0; } \n");
135 	fprintf(svgfile, "      rect.c6       { fill:rgb(255,  0,  0); fill-opacity:0.5; stroke-width:0; } \n");
136 	fprintf(svgfile, "      line.pstate   { stroke:rgb(255,255,  0); stroke-opacity:0.8; stroke-width:2; } \n");
137 
138 	fprintf(svgfile, "    ]]>\n   </style>\n</defs>\n");
139 }
140 
normalize_height(double height)141 static double normalize_height(double height)
142 {
143 	if (height < 0.25)
144 		return 0.25;
145 	else if (height < 0.50)
146 		return 0.50;
147 	else if (height < 0.75)
148 		return 0.75;
149 	else
150 		return 0.100;
151 }
152 
svg_ubox(int Yslot,u64 start,u64 end,double height,const char * type,int fd,int err,int merges)153 void svg_ubox(int Yslot, u64 start, u64 end, double height, const char *type, int fd, int err, int merges)
154 {
155 	double w = time2pixels(end) - time2pixels(start);
156 	height = normalize_height(height);
157 
158 	if (!svgfile)
159 		return;
160 
161 	fprintf(svgfile, "<g>\n");
162 	fprintf(svgfile, "<title>fd=%d error=%d merges=%d</title>\n", fd, err, merges);
163 	fprintf(svgfile, "<rect x=\"%.8f\" width=\"%.8f\" y=\"%.1f\" height=\"%.1f\" class=\"%s\"/>\n",
164 		time2pixels(start),
165 		w,
166 		Yslot * SLOT_MULT,
167 		SLOT_HALF * height,
168 		type);
169 	fprintf(svgfile, "</g>\n");
170 }
171 
svg_lbox(int Yslot,u64 start,u64 end,double height,const char * type,int fd,int err,int merges)172 void svg_lbox(int Yslot, u64 start, u64 end, double height, const char *type, int fd, int err, int merges)
173 {
174 	double w = time2pixels(end) - time2pixels(start);
175 	height = normalize_height(height);
176 
177 	if (!svgfile)
178 		return;
179 
180 	fprintf(svgfile, "<g>\n");
181 	fprintf(svgfile, "<title>fd=%d error=%d merges=%d</title>\n", fd, err, merges);
182 	fprintf(svgfile, "<rect x=\"%.8f\" width=\"%.8f\" y=\"%.1f\" height=\"%.1f\" class=\"%s\"/>\n",
183 		time2pixels(start),
184 		w,
185 		Yslot * SLOT_MULT + SLOT_HEIGHT - SLOT_HALF * height,
186 		SLOT_HALF * height,
187 		type);
188 	fprintf(svgfile, "</g>\n");
189 }
190 
svg_fbox(int Yslot,u64 start,u64 end,double height,const char * type,int fd,int err,int merges)191 void svg_fbox(int Yslot, u64 start, u64 end, double height, const char *type, int fd, int err, int merges)
192 {
193 	double w = time2pixels(end) - time2pixels(start);
194 	height = normalize_height(height);
195 
196 	if (!svgfile)
197 		return;
198 
199 	fprintf(svgfile, "<g>\n");
200 	fprintf(svgfile, "<title>fd=%d error=%d merges=%d</title>\n", fd, err, merges);
201 	fprintf(svgfile, "<rect x=\"%.8f\" width=\"%.8f\" y=\"%.1f\" height=\"%.1f\" class=\"%s\"/>\n",
202 		time2pixels(start),
203 		w,
204 		Yslot * SLOT_MULT + SLOT_HEIGHT - SLOT_HEIGHT * height,
205 		SLOT_HEIGHT * height,
206 		type);
207 	fprintf(svgfile, "</g>\n");
208 }
209 
svg_box(int Yslot,u64 start,u64 end,const char * type)210 void svg_box(int Yslot, u64 start, u64 end, const char *type)
211 {
212 	if (!svgfile)
213 		return;
214 
215 	fprintf(svgfile, "<rect x=\"%.8f\" width=\"%.8f\" y=\"%.1f\" height=\"%.1f\" class=\"%s\"/>\n",
216 		time2pixels(start), time2pixels(end)-time2pixels(start), Yslot * SLOT_MULT, SLOT_HEIGHT, type);
217 }
218 
219 static char *time_to_string(u64 duration);
svg_blocked(int Yslot,int cpu,u64 start,u64 end,const char * backtrace)220 void svg_blocked(int Yslot, int cpu, u64 start, u64 end, const char *backtrace)
221 {
222 	if (!svgfile)
223 		return;
224 
225 	fprintf(svgfile, "<g>\n");
226 	fprintf(svgfile, "<title>#%d blocked %s</title>\n", cpu,
227 		time_to_string(end - start));
228 	if (backtrace)
229 		fprintf(svgfile, "<desc>Blocked on:\n%s</desc>\n", backtrace);
230 	svg_box(Yslot, start, end, "blocked");
231 	fprintf(svgfile, "</g>\n");
232 }
233 
svg_running(int Yslot,int cpu,u64 start,u64 end,const char * backtrace)234 void svg_running(int Yslot, int cpu, u64 start, u64 end, const char *backtrace)
235 {
236 	double text_size;
237 	const char *type;
238 
239 	if (!svgfile)
240 		return;
241 
242 	if (svg_highlight && end - start > svg_highlight)
243 		type = "sample_hi";
244 	else
245 		type = "sample";
246 	fprintf(svgfile, "<g>\n");
247 
248 	fprintf(svgfile, "<title>#%d running %s</title>\n",
249 		cpu, time_to_string(end - start));
250 	if (backtrace)
251 		fprintf(svgfile, "<desc>Switched because:\n%s</desc>\n", backtrace);
252 	fprintf(svgfile, "<rect x=\"%.8f\" width=\"%.8f\" y=\"%.1f\" height=\"%.1f\" class=\"%s\"/>\n",
253 		time2pixels(start), time2pixels(end)-time2pixels(start), Yslot * SLOT_MULT, SLOT_HEIGHT,
254 		type);
255 
256 	text_size = (time2pixels(end)-time2pixels(start));
257 	if (cpu > 9)
258 		text_size = text_size/2;
259 	if (text_size > 1.25)
260 		text_size = 1.25;
261 	text_size = round_text_size(text_size);
262 
263 	if (text_size > MIN_TEXT_SIZE)
264 		fprintf(svgfile, "<text x=\"%.8f\" y=\"%.8f\" font-size=\"%.8fpt\">%i</text>\n",
265 			time2pixels(start), Yslot *  SLOT_MULT + SLOT_HEIGHT - 1, text_size,  cpu + 1);
266 
267 	fprintf(svgfile, "</g>\n");
268 }
269 
time_to_string(u64 duration)270 static char *time_to_string(u64 duration)
271 {
272 	static char text[80];
273 
274 	text[0] = 0;
275 
276 	if (duration < NSEC_PER_USEC) /* less than 1 usec */
277 		return text;
278 
279 	if (duration < NSEC_PER_MSEC) { /* less than 1 msec */
280 		sprintf(text, "%.1f us", duration / (double)NSEC_PER_USEC);
281 		return text;
282 	}
283 	sprintf(text, "%.1f ms", duration / (double)NSEC_PER_MSEC);
284 
285 	return text;
286 }
287 
svg_waiting(int Yslot,int cpu,u64 start,u64 end,const char * backtrace)288 void svg_waiting(int Yslot, int cpu, u64 start, u64 end, const char *backtrace)
289 {
290 	char *text;
291 	const char *style;
292 	double font_size;
293 
294 	if (!svgfile)
295 		return;
296 
297 	style = "waiting";
298 
299 	if (end-start > 10 * NSEC_PER_MSEC) /* 10 msec */
300 		style = "WAITING";
301 
302 	text = time_to_string(end-start);
303 
304 	font_size = 1.0 * (time2pixels(end)-time2pixels(start));
305 
306 	if (font_size > 3)
307 		font_size = 3;
308 
309 	font_size = round_text_size(font_size);
310 
311 	fprintf(svgfile, "<g transform=\"translate(%.8f,%.8f)\">\n", time2pixels(start), Yslot * SLOT_MULT);
312 	fprintf(svgfile, "<title>#%d waiting %s</title>\n", cpu, time_to_string(end - start));
313 	if (backtrace)
314 		fprintf(svgfile, "<desc>Waiting on:\n%s</desc>\n", backtrace);
315 	fprintf(svgfile, "<rect x=\"0\" width=\"%.8f\" y=\"0\" height=\"%.1f\" class=\"%s\"/>\n",
316 		time2pixels(end)-time2pixels(start), SLOT_HEIGHT, style);
317 	if (font_size > MIN_TEXT_SIZE)
318 		fprintf(svgfile, "<text transform=\"rotate(90)\" font-size=\"%.8fpt\"> %s</text>\n",
319 			font_size, text);
320 	fprintf(svgfile, "</g>\n");
321 }
322 
cpu_model(void)323 static char *cpu_model(void)
324 {
325 	static char cpu_m[255];
326 	char buf[256];
327 	FILE *file;
328 
329 	cpu_m[0] = 0;
330 	/* CPU type */
331 	file = fopen("/proc/cpuinfo", "r");
332 	if (file) {
333 		while (fgets(buf, 255, file)) {
334 			if (strcasestr(buf, "model name")) {
335 				strlcpy(cpu_m, &buf[13], 255);
336 				break;
337 			}
338 		}
339 		fclose(file);
340 	}
341 
342 	/* CPU type */
343 	file = fopen("/sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies", "r");
344 	if (file) {
345 		while (fgets(buf, 255, file)) {
346 			unsigned int freq;
347 			freq = strtoull(buf, NULL, 10);
348 			if (freq > max_freq)
349 				max_freq = freq;
350 		}
351 		fclose(file);
352 	}
353 	return cpu_m;
354 }
355 
svg_cpu_box(int cpu,u64 __max_freq,u64 __turbo_freq)356 void svg_cpu_box(int cpu, u64 __max_freq, u64 __turbo_freq)
357 {
358 	char cpu_string[80];
359 	if (!svgfile)
360 		return;
361 
362 	max_freq = __max_freq;
363 	turbo_frequency = __turbo_freq;
364 
365 	fprintf(svgfile, "<g>\n");
366 
367 	fprintf(svgfile, "<rect x=\"%.8f\" width=\"%.8f\" y=\"%.1f\" height=\"%.1f\" class=\"cpu\"/>\n",
368 		time2pixels(first_time),
369 		time2pixels(last_time)-time2pixels(first_time),
370 		cpu2y(cpu), SLOT_MULT+SLOT_HEIGHT);
371 
372 	sprintf(cpu_string, "CPU %i", (int)cpu);
373 	fprintf(svgfile, "<text x=\"%.8f\" y=\"%.8f\">%s</text>\n",
374 		10+time2pixels(first_time), cpu2y(cpu) + SLOT_HEIGHT/2, cpu_string);
375 
376 	fprintf(svgfile, "<text transform=\"translate(%.8f,%.8f)\" font-size=\"1.25pt\">%s</text>\n",
377 		10+time2pixels(first_time), cpu2y(cpu) + SLOT_MULT + SLOT_HEIGHT - 4, cpu_model());
378 
379 	fprintf(svgfile, "</g>\n");
380 }
381 
svg_process(int cpu,u64 start,u64 end,int pid,const char * name,const char * backtrace)382 void svg_process(int cpu, u64 start, u64 end, int pid, const char *name, const char *backtrace)
383 {
384 	double width;
385 	const char *type;
386 
387 	if (!svgfile)
388 		return;
389 
390 	if (svg_highlight && end - start >= svg_highlight)
391 		type = "sample_hi";
392 	else if (svg_highlight_name && strstr(name, svg_highlight_name))
393 		type = "sample_hi";
394 	else
395 		type = "sample";
396 
397 	fprintf(svgfile, "<g transform=\"translate(%.8f,%.8f)\">\n", time2pixels(start), cpu2y(cpu));
398 	fprintf(svgfile, "<title>%d %s running %s</title>\n", pid, name, time_to_string(end - start));
399 	if (backtrace)
400 		fprintf(svgfile, "<desc>Switched because:\n%s</desc>\n", backtrace);
401 	fprintf(svgfile, "<rect x=\"0\" width=\"%.8f\" y=\"0\" height=\"%.1f\" class=\"%s\"/>\n",
402 		time2pixels(end)-time2pixels(start), SLOT_MULT+SLOT_HEIGHT, type);
403 	width = time2pixels(end)-time2pixels(start);
404 	if (width > 6)
405 		width = 6;
406 
407 	width = round_text_size(width);
408 
409 	if (width > MIN_TEXT_SIZE)
410 		fprintf(svgfile, "<text transform=\"rotate(90)\" font-size=\"%.8fpt\">%s</text>\n",
411 			width, name);
412 
413 	fprintf(svgfile, "</g>\n");
414 }
415 
svg_cstate(int cpu,u64 start,u64 end,int type)416 void svg_cstate(int cpu, u64 start, u64 end, int type)
417 {
418 	double width;
419 	char style[128];
420 
421 	if (!svgfile)
422 		return;
423 
424 
425 	fprintf(svgfile, "<g>\n");
426 
427 	if (type > 6)
428 		type = 6;
429 	sprintf(style, "c%i", type);
430 
431 	fprintf(svgfile, "<rect class=\"%s\" x=\"%.8f\" width=\"%.8f\" y=\"%.1f\" height=\"%.1f\"/>\n",
432 		style,
433 		time2pixels(start), time2pixels(end)-time2pixels(start),
434 		cpu2y(cpu), SLOT_MULT+SLOT_HEIGHT);
435 
436 	width = (time2pixels(end)-time2pixels(start))/2.0;
437 	if (width > 6)
438 		width = 6;
439 
440 	width = round_text_size(width);
441 
442 	if (width > MIN_TEXT_SIZE)
443 		fprintf(svgfile, "<text x=\"%.8f\" y=\"%.8f\" font-size=\"%.8fpt\">C%i</text>\n",
444 			time2pixels(start), cpu2y(cpu)+width, width, type);
445 
446 	fprintf(svgfile, "</g>\n");
447 }
448 
HzToHuman(unsigned long hz)449 static char *HzToHuman(unsigned long hz)
450 {
451 	static char buffer[1024];
452 	unsigned long long Hz;
453 
454 	memset(buffer, 0, 1024);
455 
456 	Hz = hz;
457 
458 	/* default: just put the Number in */
459 	sprintf(buffer, "%9lli", Hz);
460 
461 	if (Hz > 1000)
462 		sprintf(buffer, " %6lli Mhz", (Hz+500)/1000);
463 
464 	if (Hz > 1500000)
465 		sprintf(buffer, " %6.2f Ghz", (Hz+5000.0)/1000000);
466 
467 	if (Hz == turbo_frequency)
468 		sprintf(buffer, "Turbo");
469 
470 	return buffer;
471 }
472 
svg_pstate(int cpu,u64 start,u64 end,u64 freq)473 void svg_pstate(int cpu, u64 start, u64 end, u64 freq)
474 {
475 	double height = 0;
476 
477 	if (!svgfile)
478 		return;
479 
480 	fprintf(svgfile, "<g>\n");
481 
482 	if (max_freq)
483 		height = freq * 1.0 / max_freq * (SLOT_HEIGHT + SLOT_MULT);
484 	height = 1 + cpu2y(cpu) + SLOT_MULT + SLOT_HEIGHT - height;
485 	fprintf(svgfile, "<line x1=\"%.8f\" x2=\"%.8f\" y1=\"%.1f\" y2=\"%.1f\" class=\"pstate\"/>\n",
486 		time2pixels(start), time2pixels(end), height, height);
487 	fprintf(svgfile, "<text x=\"%.8f\" y=\"%.8f\" font-size=\"0.25pt\">%s</text>\n",
488 		time2pixels(start), height+0.9, HzToHuman(freq));
489 
490 	fprintf(svgfile, "</g>\n");
491 }
492 
493 
svg_partial_wakeline(u64 start,int row1,char * desc1,int row2,char * desc2,const char * backtrace)494 void svg_partial_wakeline(u64 start, int row1, char *desc1, int row2, char *desc2, const char *backtrace)
495 {
496 	double height;
497 
498 	if (!svgfile)
499 		return;
500 
501 
502 	fprintf(svgfile, "<g>\n");
503 
504 	fprintf(svgfile, "<title>%s wakes up %s</title>\n",
505 		desc1 ? desc1 : "?",
506 		desc2 ? desc2 : "?");
507 
508 	if (backtrace)
509 		fprintf(svgfile, "<desc>%s</desc>\n", backtrace);
510 
511 	if (row1 < row2) {
512 		if (row1) {
513 			fprintf(svgfile, "<line x1=\"%.8f\" y1=\"%.2f\" x2=\"%.8f\" y2=\"%.2f\" style=\"stroke:rgb(32,255,32);stroke-width:0.009\"/>\n",
514 				time2pixels(start), row1 * SLOT_MULT + SLOT_HEIGHT,  time2pixels(start), row1 * SLOT_MULT + SLOT_HEIGHT + SLOT_MULT/32);
515 			if (desc2)
516 				fprintf(svgfile, "<g transform=\"translate(%.8f,%.8f)\"><text transform=\"rotate(90)\" font-size=\"0.02pt\">%s &gt;</text></g>\n",
517 					time2pixels(start), row1 * SLOT_MULT + SLOT_HEIGHT + SLOT_HEIGHT/48, desc2);
518 		}
519 		if (row2) {
520 			fprintf(svgfile, "<line x1=\"%.8f\" y1=\"%.2f\" x2=\"%.8f\" y2=\"%.2f\" style=\"stroke:rgb(32,255,32);stroke-width:0.009\"/>\n",
521 				time2pixels(start), row2 * SLOT_MULT - SLOT_MULT/32,  time2pixels(start), row2 * SLOT_MULT);
522 			if (desc1)
523 				fprintf(svgfile, "<g transform=\"translate(%.8f,%.8f)\"><text transform=\"rotate(90)\" font-size=\"0.02pt\">%s &gt;</text></g>\n",
524 					time2pixels(start), row2 * SLOT_MULT - SLOT_MULT/32, desc1);
525 		}
526 	} else {
527 		if (row2) {
528 			fprintf(svgfile, "<line x1=\"%.8f\" y1=\"%.2f\" x2=\"%.8f\" y2=\"%.2f\" style=\"stroke:rgb(32,255,32);stroke-width:0.009\"/>\n",
529 				time2pixels(start), row2 * SLOT_MULT + SLOT_HEIGHT,  time2pixels(start), row2 * SLOT_MULT + SLOT_HEIGHT + SLOT_MULT/32);
530 			if (desc1)
531 				fprintf(svgfile, "<g transform=\"translate(%.8f,%.8f)\"><text transform=\"rotate(90)\" font-size=\"0.02pt\">%s &lt;</text></g>\n",
532 					time2pixels(start), row2 * SLOT_MULT + SLOT_HEIGHT + SLOT_MULT/48, desc1);
533 		}
534 		if (row1) {
535 			fprintf(svgfile, "<line x1=\"%.8f\" y1=\"%.2f\" x2=\"%.8f\" y2=\"%.2f\" style=\"stroke:rgb(32,255,32);stroke-width:0.009\"/>\n",
536 				time2pixels(start), row1 * SLOT_MULT - SLOT_MULT/32,  time2pixels(start), row1 * SLOT_MULT);
537 			if (desc2)
538 				fprintf(svgfile, "<g transform=\"translate(%.8f,%.8f)\"><text transform=\"rotate(90)\" font-size=\"0.02pt\">%s &lt;</text></g>\n",
539 					time2pixels(start), row1 * SLOT_MULT - SLOT_HEIGHT/32, desc2);
540 		}
541 	}
542 	height = row1 * SLOT_MULT;
543 	if (row2 > row1)
544 		height += SLOT_HEIGHT;
545 	if (row1)
546 		fprintf(svgfile, "<circle  cx=\"%.8f\" cy=\"%.2f\" r = \"0.01\"  style=\"fill:rgb(32,255,32)\"/>\n",
547 			time2pixels(start), height);
548 
549 	fprintf(svgfile, "</g>\n");
550 }
551 
svg_wakeline(u64 start,int row1,int row2,const char * backtrace)552 void svg_wakeline(u64 start, int row1, int row2, const char *backtrace)
553 {
554 	double height;
555 
556 	if (!svgfile)
557 		return;
558 
559 
560 	fprintf(svgfile, "<g>\n");
561 
562 	if (backtrace)
563 		fprintf(svgfile, "<desc>%s</desc>\n", backtrace);
564 
565 	if (row1 < row2)
566 		fprintf(svgfile, "<line x1=\"%.8f\" y1=\"%.2f\" x2=\"%.8f\" y2=\"%.2f\" style=\"stroke:rgb(32,255,32);stroke-width:0.009\"/>\n",
567 			time2pixels(start), row1 * SLOT_MULT + SLOT_HEIGHT,  time2pixels(start), row2 * SLOT_MULT);
568 	else
569 		fprintf(svgfile, "<line x1=\"%.8f\" y1=\"%.2f\" x2=\"%.8f\" y2=\"%.2f\" style=\"stroke:rgb(32,255,32);stroke-width:0.009\"/>\n",
570 			time2pixels(start), row2 * SLOT_MULT + SLOT_HEIGHT,  time2pixels(start), row1 * SLOT_MULT);
571 
572 	height = row1 * SLOT_MULT;
573 	if (row2 > row1)
574 		height += SLOT_HEIGHT;
575 	fprintf(svgfile, "<circle  cx=\"%.8f\" cy=\"%.2f\" r = \"0.01\"  style=\"fill:rgb(32,255,32)\"/>\n",
576 			time2pixels(start), height);
577 
578 	fprintf(svgfile, "</g>\n");
579 }
580 
svg_interrupt(u64 start,int row,const char * backtrace)581 void svg_interrupt(u64 start, int row, const char *backtrace)
582 {
583 	if (!svgfile)
584 		return;
585 
586 	fprintf(svgfile, "<g>\n");
587 
588 	fprintf(svgfile, "<title>Wakeup from interrupt</title>\n");
589 
590 	if (backtrace)
591 		fprintf(svgfile, "<desc>%s</desc>\n", backtrace);
592 
593 	fprintf(svgfile, "<circle  cx=\"%.8f\" cy=\"%.2f\" r = \"0.01\"  style=\"fill:rgb(255,128,128)\"/>\n",
594 			time2pixels(start), row * SLOT_MULT);
595 	fprintf(svgfile, "<circle  cx=\"%.8f\" cy=\"%.2f\" r = \"0.01\"  style=\"fill:rgb(255,128,128)\"/>\n",
596 			time2pixels(start), row * SLOT_MULT + SLOT_HEIGHT);
597 
598 	fprintf(svgfile, "</g>\n");
599 }
600 
svg_text(int Yslot,u64 start,const char * text)601 void svg_text(int Yslot, u64 start, const char *text)
602 {
603 	if (!svgfile)
604 		return;
605 
606 	fprintf(svgfile, "<text x=\"%.8f\" y=\"%.8f\">%s</text>\n",
607 		time2pixels(start), Yslot * SLOT_MULT+SLOT_HEIGHT/2, text);
608 }
609 
svg_legenda_box(int X,const char * text,const char * style)610 static void svg_legenda_box(int X, const char *text, const char *style)
611 {
612 	double boxsize;
613 	boxsize = SLOT_HEIGHT / 2;
614 
615 	fprintf(svgfile, "<rect x=\"%i\" width=\"%.8f\" y=\"0\" height=\"%.1f\" class=\"%s\"/>\n",
616 		X, boxsize, boxsize, style);
617 	fprintf(svgfile, "<text transform=\"translate(%.8f, %.8f)\" font-size=\"%.8fpt\">%s</text>\n",
618 		X + boxsize + 5, boxsize, 0.8 * boxsize, text);
619 }
620 
svg_io_legenda(void)621 void svg_io_legenda(void)
622 {
623 	if (!svgfile)
624 		return;
625 
626 	fprintf(svgfile, "<g>\n");
627 	svg_legenda_box(0,	"Disk", "disk");
628 	svg_legenda_box(100,	"Network", "net");
629 	svg_legenda_box(200,	"Sync", "sync");
630 	svg_legenda_box(300,	"Poll", "poll");
631 	svg_legenda_box(400,	"Error", "error");
632 	fprintf(svgfile, "</g>\n");
633 }
634 
svg_legenda(void)635 void svg_legenda(void)
636 {
637 	if (!svgfile)
638 		return;
639 
640 	fprintf(svgfile, "<g>\n");
641 	svg_legenda_box(0,	"Running", "sample");
642 	svg_legenda_box(100,	"Idle","c1");
643 	svg_legenda_box(200,	"Deeper Idle", "c3");
644 	svg_legenda_box(350,	"Deepest Idle", "c6");
645 	svg_legenda_box(550,	"Sleeping", "process2");
646 	svg_legenda_box(650,	"Waiting for cpu", "waiting");
647 	svg_legenda_box(800,	"Blocked on IO", "blocked");
648 	fprintf(svgfile, "</g>\n");
649 }
650 
svg_time_grid(double min_thickness)651 void svg_time_grid(double min_thickness)
652 {
653 	u64 i;
654 
655 	if (!svgfile)
656 		return;
657 
658 	i = first_time;
659 	while (i < last_time) {
660 		int color = 220;
661 		double thickness = 0.075;
662 		if ((i % 100000000) == 0) {
663 			thickness = 0.5;
664 			color = 192;
665 		}
666 		if ((i % 1000000000) == 0) {
667 			thickness = 2.0;
668 			color = 128;
669 		}
670 
671 		if (thickness >= min_thickness)
672 			fprintf(svgfile, "<line x1=\"%.8f\" y1=\"%.2f\" x2=\"%.8f\" y2=\"%" PRIu64 "\" style=\"stroke:rgb(%i,%i,%i);stroke-width:%.3f\"/>\n",
673 				time2pixels(i), SLOT_MULT/2, time2pixels(i),
674 				total_height, color, color, color, thickness);
675 
676 		i += 10000000;
677 	}
678 }
679 
svg_close(void)680 void svg_close(void)
681 {
682 	if (svgfile) {
683 		fprintf(svgfile, "</svg>\n");
684 		fclose(svgfile);
685 		svgfile = NULL;
686 	}
687 }
688 
689 #define cpumask_bits(maskp) ((maskp)->bits)
690 typedef struct { DECLARE_BITMAP(bits, MAX_NR_CPUS); } cpumask_t;
691 
692 struct topology {
693 	cpumask_t *sib_core;
694 	int sib_core_nr;
695 	cpumask_t *sib_thr;
696 	int sib_thr_nr;
697 };
698 
scan_thread_topology(int * map,struct topology * t,int cpu,int * pos,int nr_cpus)699 static void scan_thread_topology(int *map, struct topology *t, int cpu,
700 				 int *pos, int nr_cpus)
701 {
702 	int i;
703 	int thr;
704 
705 	for (i = 0; i < t->sib_thr_nr; i++) {
706 		if (!test_bit(cpu, cpumask_bits(&t->sib_thr[i])))
707 			continue;
708 
709 		for_each_set_bit(thr, cpumask_bits(&t->sib_thr[i]), nr_cpus)
710 			if (map[thr] == -1)
711 				map[thr] = (*pos)++;
712 	}
713 }
714 
scan_core_topology(int * map,struct topology * t,int nr_cpus)715 static void scan_core_topology(int *map, struct topology *t, int nr_cpus)
716 {
717 	int pos = 0;
718 	int i;
719 	int cpu;
720 
721 	for (i = 0; i < t->sib_core_nr; i++)
722 		for_each_set_bit(cpu, cpumask_bits(&t->sib_core[i]), nr_cpus)
723 			scan_thread_topology(map, t, cpu, &pos, nr_cpus);
724 }
725 
str_to_bitmap(char * s,cpumask_t * b,int nr_cpus)726 static int str_to_bitmap(char *s, cpumask_t *b, int nr_cpus)
727 {
728 	int i;
729 	int ret = 0;
730 	struct perf_cpu_map *m;
731 	struct perf_cpu c;
732 
733 	m = perf_cpu_map__new(s);
734 	if (!m)
735 		return -1;
736 
737 	for (i = 0; i < perf_cpu_map__nr(m); i++) {
738 		c = perf_cpu_map__cpu(m, i);
739 		if (c.cpu >= nr_cpus) {
740 			ret = -1;
741 			break;
742 		}
743 
744 		__set_bit(c.cpu, cpumask_bits(b));
745 	}
746 
747 	perf_cpu_map__put(m);
748 
749 	return ret;
750 }
751 
svg_build_topology_map(struct perf_env * env)752 int svg_build_topology_map(struct perf_env *env)
753 {
754 	int i, nr_cpus;
755 	struct topology t;
756 	char *sib_core, *sib_thr;
757 
758 	nr_cpus = min(env->nr_cpus_online, MAX_NR_CPUS);
759 
760 	t.sib_core_nr = env->nr_sibling_cores;
761 	t.sib_thr_nr = env->nr_sibling_threads;
762 	t.sib_core = calloc(env->nr_sibling_cores, sizeof(cpumask_t));
763 	t.sib_thr = calloc(env->nr_sibling_threads, sizeof(cpumask_t));
764 
765 	sib_core = env->sibling_cores;
766 	sib_thr = env->sibling_threads;
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 < env->nr_sibling_cores; i++) {
774 		if (str_to_bitmap(sib_core, &t.sib_core[i], nr_cpus)) {
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 < env->nr_sibling_threads; i++) {
783 		if (str_to_bitmap(sib_thr, &t.sib_thr[i], nr_cpus)) {
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) * nr_cpus);
792 	if (!topology_map) {
793 		fprintf(stderr, "topology: no memory\n");
794 		goto exit;
795 	}
796 
797 	for (i = 0; i < nr_cpus; i++)
798 		topology_map[i] = -1;
799 
800 	scan_core_topology(topology_map, &t, nr_cpus);
801 
802 	return 0;
803 
804 exit:
805 	zfree(&t.sib_core);
806 	zfree(&t.sib_thr);
807 
808 	return -1;
809 }
810