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perf timechart: Show the duration of scheduler delays in the SVG
[linux-2.6-block.git] / tools / perf / util / svghelper.c
CommitLineData
f48d55ce
AV		 1/*
2 * svghelper.c - helper functions for outputting svg
3 *
4 * (C) Copyright 2009 Intel Corporation
5 *
6 * Authors:
7 * Arjan van de Ven <arjan@linux.intel.com>
8 *
9 * This program is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU General Public License
11 * as published by the Free Software Foundation; version 2
12 * of the License.
13 */
14
15#include <stdio.h>
16#include <stdlib.h>
17#include <unistd.h>
18#include <string.h>
19
20#include "svghelper.h"
21
22static u64 first_time, last_time;
23static u64 turbo_frequency, max_freq;
24
25
26#define SLOT_MULT 30.0
27#define SLOT_HEIGHT 25.0
28#define WIDTH 1000.0
29
964a0b3d
AV		 30#define MIN_TEXT_SIZE 0.001
31
f48d55ce
AV		 32static u64 total_height;
33static FILE *svgfile;
34
35static double cpu2slot(int cpu)
36{
37 return 2 * cpu + 1;
38}
39
40static double cpu2y(int cpu)
41{
42 return cpu2slot(cpu) * SLOT_MULT;
43}
44
45static double time2pixels(u64 time)
46{
47 double X;
48
49 X = WIDTH * (time - first_time) / (last_time - first_time);
50 return X;
51}
52
53void open_svg(const char *filename, int cpus, int rows)
54{
55
56 svgfile = fopen(filename, "w");
57 if (!svgfile) {
58 fprintf(stderr, "Cannot open %s for output\n", filename);
59 return;
60 }
61 total_height = (1 + rows + cpu2slot(cpus)) * SLOT_MULT;
62 fprintf(svgfile, "<?xml version=\"1.0\" standalone=\"no\"?> \n");
63 fprintf(svgfile, "<svg width=\"%4.1f\" height=\"%llu\" version=\"1.1\" xmlns=\"http://www.w3.org/2000/svg\">\n", WIDTH, total_height);
64
65 fprintf(svgfile, "<defs>\n <style type=\"text/css\">\n <![CDATA[\n");
66
67 fprintf(svgfile, " rect { stroke-width: 1; }\n");
68 fprintf(svgfile, " rect.process { fill:rgb(180,180,180); fill-opacity:0.9; stroke-width:1; stroke:rgb( 0, 0, 0); } \n");
69 fprintf(svgfile, " rect.process2 { fill:rgb(180,180,180); fill-opacity:0.9; stroke-width:0; stroke:rgb( 0, 0, 0); } \n");
70 fprintf(svgfile, " rect.sample { fill:rgb( 0, 0,255); fill-opacity:0.8; stroke-width:0; stroke:rgb( 0, 0, 0); } \n");
71 fprintf(svgfile, " rect.blocked { fill:rgb(255, 0, 0); fill-opacity:0.5; stroke-width:0; stroke:rgb( 0, 0, 0); } \n");
a92fe7b3
AV		 72 fprintf(svgfile, " rect.waiting { fill:rgb(214,214, 0); fill-opacity:0.3; stroke-width:0; stroke:rgb( 0, 0, 0); } \n");
73 fprintf(svgfile, " rect.WAITING { fill:rgb(255,214, 48); fill-opacity:0.6; stroke-width:0; stroke:rgb( 0, 0, 0); } \n");
f48d55ce
AV		 74 fprintf(svgfile, " rect.cpu { fill:rgb(192,192,192); fill-opacity:0.2; stroke-width:0.5; stroke:rgb(128,128,128); } \n");
75 fprintf(svgfile, " rect.pstate { fill:rgb(128,128,128); fill-opacity:0.8; stroke-width:0; } \n");
76 fprintf(svgfile, " rect.c1 { fill:rgb(255,214,214); fill-opacity:0.5; stroke-width:0; } \n");
77 fprintf(svgfile, " rect.c2 { fill:rgb(255,172,172); fill-opacity:0.5; stroke-width:0; } \n");
78 fprintf(svgfile, " rect.c3 { fill:rgb(255,130,130); fill-opacity:0.5; stroke-width:0; } \n");
79 fprintf(svgfile, " rect.c4 { fill:rgb(255, 88, 88); fill-opacity:0.5; stroke-width:0; } \n");
80 fprintf(svgfile, " rect.c5 { fill:rgb(255, 44, 44); fill-opacity:0.5; stroke-width:0; } \n");
81 fprintf(svgfile, " rect.c6 { fill:rgb(255, 0, 0); fill-opacity:0.5; stroke-width:0; } \n");
82 fprintf(svgfile, " line.pstate { stroke:rgb(255,255, 0); stroke-opacity:0.8; stroke-width:2; } \n");
83
84 fprintf(svgfile, " ]]>\n </style>\n</defs>\n");
85}
86
87void svg_box(int Yslot, u64 start, u64 end, const char *type)
88{
89 if (!svgfile)
90 return;
91
92 fprintf(svgfile, "<rect x=\"%4.8f\" width=\"%4.8f\" y=\"%4.1f\" height=\"%4.1f\" class=\"%s\"/>\n",
93 time2pixels(start), time2pixels(end)-time2pixels(start), Yslot * SLOT_MULT, SLOT_HEIGHT, type);
94}
95
a92fe7b3 96void svg_sample(int Yslot, int cpu, u64 start, u64 end)
f48d55ce
AV		 97{
98 double text_size;
99 if (!svgfile)
100 return;
101
a92fe7b3
AV		 102 fprintf(svgfile, "<rect x=\"%4.8f\" width=\"%4.8f\" y=\"%4.1f\" height=\"%4.1f\" class=\"sample\"/>\n",
103 time2pixels(start), time2pixels(end)-time2pixels(start), Yslot * SLOT_MULT, SLOT_HEIGHT);
f48d55ce
AV		 104
105 text_size = (time2pixels(end)-time2pixels(start));
106 if (cpu > 9)
107 text_size = text_size/2;
108 if (text_size > 1.25)
109 text_size = 1.25;
964a0b3d
AV		 110 if (text_size > MIN_TEXT_SIZE)
111 fprintf(svgfile, "<text transform=\"translate(%1.8f,%1.8f)\" font-size=\"%1.6fpt\">%i</text>\n",
f48d55ce
AV		 112 time2pixels(start), Yslot * SLOT_MULT + SLOT_HEIGHT - 1, text_size, cpu + 1);
113
114}
115
a92fe7b3
AV		 116static char *time_to_string(u64 duration)
117{
118 static char text[80];
119
120 text[0] = 0;
121
122 if (duration < 1000) /* less than 1 usec */
123 return text;
124
125 if (duration < 1000 * 1000) { /* less than 1 msec */
126 sprintf(text, "%4.1f us", duration / 1000.0);
127 return text;
128 }
129 sprintf(text, "%4.1f ms", duration / 1000.0 / 1000);
130
131 return text;
132}
133
134void svg_waiting(int Yslot, u64 start, u64 end)
135{
136 char *text;
137 const char *style;
138 double font_size;
139
140 if (!svgfile)
141 return;
142
143 style = "waiting";
144
145 if (end-start > 10 * 1000000) /* 10 msec */
146 style = "WAITING";
147
148 text = time_to_string(end-start);
149
150 font_size = 1.0 * (time2pixels(end)-time2pixels(start)) / strlen(text);
151
152 if (font_size > 0.2)
153 font_size = 0.2;
154
155
156 fprintf(svgfile, "<rect x=\"%4.8f\" width=\"%4.8f\" y=\"%4.1f\" height=\"%4.1f\" class=\"%s\"/>\n",
157 time2pixels(start), time2pixels(end)-time2pixels(start), Yslot * SLOT_MULT, SLOT_HEIGHT, style);
158 if (font_size > MIN_TEXT_SIZE)
159 fprintf(svgfile, "<text transform=\"translate(%1.8f,%1.8f)\" font-size=\"%1.6fpt\">%s</text>\n",
160 time2pixels(start), Yslot * SLOT_MULT + 2, font_size, text);
161}
162
f48d55ce
AV		 163static char *cpu_model(void)
164{
165 static char cpu_m[255];
166 char buf[256];
167 FILE *file;
168
169 cpu_m[0] = 0;
170 /* CPU type */
171 file = fopen("/proc/cpuinfo", "r");
172 if (file) {
173 while (fgets(buf, 255, file)) {
174 if (strstr(buf, "model name")) {
175 strncpy(cpu_m, &buf[13], 255);
176 break;
177 }
178 }
179 fclose(file);
180 }
181 return cpu_m;
182}
183
184void svg_cpu_box(int cpu, u64 __max_freq, u64 __turbo_freq)
185{
186 char cpu_string[80];
187 if (!svgfile)
188 return;
189
190 max_freq = __max_freq;
191 turbo_frequency = __turbo_freq;
192
193 fprintf(svgfile, "<rect x=\"%4.8f\" width=\"%4.8f\" y=\"%4.1f\" height=\"%4.1f\" class=\"cpu\"/>\n",
194 time2pixels(first_time),
195 time2pixels(last_time)-time2pixels(first_time),
196 cpu2y(cpu), SLOT_MULT+SLOT_HEIGHT);
197
198 sprintf(cpu_string, "CPU %i", (int)cpu+1);
964a0b3d 199 fprintf(svgfile, "<text transform=\"translate(%4.8f,%4.8f)\">%s</text>\n",
f48d55ce
AV		 200 10+time2pixels(first_time), cpu2y(cpu) + SLOT_HEIGHT/2, cpu_string);
201
964a0b3d 202 fprintf(svgfile, "<text transform=\"translate(%4.8f,%4.8f)\" font-size=\"1.25pt\">%s</text>\n",
f48d55ce
AV		 203 10+time2pixels(first_time), cpu2y(cpu) + SLOT_MULT + SLOT_HEIGHT - 4, cpu_model());
204}
205
206void svg_process(int cpu, u64 start, u64 end, const char *type, const char *name)
207{
208 double width;
209
210 if (!svgfile)
211 return;
212
213 fprintf(svgfile, "<rect x=\"%4.8f\" width=\"%4.8f\" y=\"%4.1f\" height=\"%4.1f\" class=\"%s\"/>\n",
214 time2pixels(start), time2pixels(end)-time2pixels(start), cpu2y(cpu), SLOT_MULT+SLOT_HEIGHT, type);
215 width = time2pixels(end)-time2pixels(start);
216 if (width > 6)
217 width = 6;
218
964a0b3d
AV		 219 if (width > MIN_TEXT_SIZE)
220 fprintf(svgfile, "<text transform=\"translate(%4.8f,%4.8f) rotate(90)\" font-size=\"%3.4fpt\">%s</text>\n",
f48d55ce
AV		 221 time2pixels(start), cpu2y(cpu), width, name);
222}
223
224void svg_cstate(int cpu, u64 start, u64 end, int type)
225{
226 double width;
227 char style[128];
228
229 if (!svgfile)
230 return;
231
232
233 if (type > 6)
234 type = 6;
235 sprintf(style, "c%i", type);
236
237 fprintf(svgfile, "<rect class=\"%s\" x=\"%4.8f\" width=\"%4.8f\" y=\"%4.1f\" height=\"%4.1f\"/>\n",
238 style,
239 time2pixels(start), time2pixels(end)-time2pixels(start),
240 cpu2y(cpu), SLOT_MULT+SLOT_HEIGHT);
241
242 width = time2pixels(end)-time2pixels(start);
243 if (width > 6)
244 width = 6;
245
964a0b3d
AV		 246 if (width > MIN_TEXT_SIZE)
247 fprintf(svgfile, "<text transform=\"translate(%4.8f,%4.8f) rotate(90)\" font-size=\"%3.4fpt\">C%i</text>\n",
f48d55ce
AV		 248 time2pixels(start), cpu2y(cpu), width, type);
249}
250
251static char *HzToHuman(unsigned long hz)
252{
253 static char buffer[1024];
254 unsigned long long Hz;
255
256 memset(buffer, 0, 1024);
257
258 Hz = hz;
259
260 /* default: just put the Number in */
261 sprintf(buffer, "%9lli", Hz);
262
263 if (Hz > 1000)
264 sprintf(buffer, " %6lli Mhz", (Hz+500)/1000);
265
266 if (Hz > 1500000)
267 sprintf(buffer, " %6.2f Ghz", (Hz+5000.0)/1000000);
268
269 if (Hz == turbo_frequency)
270 sprintf(buffer, "Turbo");
271
272 return buffer;
273}
274
275void svg_pstate(int cpu, u64 start, u64 end, u64 freq)
276{
277 double height = 0;
278
279 if (!svgfile)
280 return;
281
282 if (max_freq)
283 height = freq * 1.0 / max_freq * (SLOT_HEIGHT + SLOT_MULT);
284 height = 1 + cpu2y(cpu) + SLOT_MULT + SLOT_HEIGHT - height;
285 fprintf(svgfile, "<line x1=\"%4.8f\" x2=\"%4.8f\" y1=\"%4.1f\" y2=\"%4.1f\" class=\"pstate\"/>\n",
286 time2pixels(start), time2pixels(end), height, height);
964a0b3d 287 fprintf(svgfile, "<text transform=\"translate(%4.8f,%4.8f)\" font-size=\"0.25pt\">%s</text>\n",
f48d55ce
AV		 288 time2pixels(start), height+0.9, HzToHuman(freq));
289
290}
291
292
4f1202c8 293void svg_partial_wakeline(u64 start, int row1, char *desc1, int row2, char *desc2)
f48d55ce
AV		 294{
295 double height;
296
297 if (!svgfile)
298 return;
299
300
301 if (row1 < row2) {
4f1202c8 302 if (row1) {
f48d55ce
AV		 303 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",
304 time2pixels(start), row1 * SLOT_MULT + SLOT_HEIGHT, time2pixels(start), row1 * SLOT_MULT + SLOT_HEIGHT + SLOT_MULT/32);
4f1202c8
AV		 305 if (desc2)
306 fprintf(svgfile, "<text transform=\"translate(%4.8f,%4.8f) rotate(90)\" font-size=\"0.02pt\">%s &gt;</text>\n",
307 time2pixels(start), row1 * SLOT_MULT + SLOT_HEIGHT + SLOT_HEIGHT/48, desc2);
308 }
309 if (row2) {
f48d55ce
AV		 310 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",
311 time2pixels(start), row2 * SLOT_MULT - SLOT_MULT/32, time2pixels(start), row2 * SLOT_MULT);
4f1202c8
AV		 312 if (desc1)
313 fprintf(svgfile, "<text transform=\"translate(%4.8f,%4.8f) rotate(90)\" font-size=\"0.02pt\">%s &gt;</text>\n",
314 time2pixels(start), row2 * SLOT_MULT - SLOT_MULT/32, desc1);
315 }
f48d55ce 316 } else {
4f1202c8 317 if (row2) {
f48d55ce
AV		 318 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",
319 time2pixels(start), row2 * SLOT_MULT + SLOT_HEIGHT, time2pixels(start), row2 * SLOT_MULT + SLOT_HEIGHT + SLOT_MULT/32);
4f1202c8
AV		 320 if (desc1)
321 fprintf(svgfile, "<text transform=\"translate(%4.8f,%4.8f) rotate(90)\" font-size=\"0.02pt\">%s &lt;</text>\n",
322 time2pixels(start), row2 * SLOT_MULT + SLOT_HEIGHT + SLOT_MULT/48, desc1);
323 }
324 if (row1) {
f48d55ce
AV		 325 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",
326 time2pixels(start), row1 * SLOT_MULT - SLOT_MULT/32, time2pixels(start), row1 * SLOT_MULT);
4f1202c8
AV		 327 if (desc2)
328 fprintf(svgfile, "<text transform=\"translate(%4.8f,%4.8f) rotate(90)\" font-size=\"0.02pt\">%s &lt;</text>\n",
329 time2pixels(start), row1 * SLOT_MULT - SLOT_HEIGHT/32, desc2);
330 }
f48d55ce
AV		 331 }
332 height = row1 * SLOT_MULT;
333 if (row2 > row1)
334 height += SLOT_HEIGHT;
335 if (row1)
336 fprintf(svgfile, "<circle cx=\"%4.8f\" cy=\"%4.2f\" r = \"0.01\" style=\"fill:rgb(32,255,32)\"/>\n",
337 time2pixels(start), height);
338}
339
340void svg_wakeline(u64 start, int row1, int row2)
341{
342 double height;
343
344 if (!svgfile)
345 return;
346
347
348 if (row1 < row2)
349 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",
350 time2pixels(start), row1 * SLOT_MULT + SLOT_HEIGHT, time2pixels(start), row2 * SLOT_MULT);
351 else
352 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",
353 time2pixels(start), row2 * SLOT_MULT + SLOT_HEIGHT, time2pixels(start), row1 * SLOT_MULT);
354
355 height = row1 * SLOT_MULT;
356 if (row2 > row1)
357 height += SLOT_HEIGHT;
358 fprintf(svgfile, "<circle cx=\"%4.8f\" cy=\"%4.2f\" r = \"0.01\" style=\"fill:rgb(32,255,32)\"/>\n",
359 time2pixels(start), height);
360}
361
362void svg_interrupt(u64 start, int row)
363{
364 if (!svgfile)
365 return;
366
367 fprintf(svgfile, "<circle cx=\"%4.8f\" cy=\"%4.2f\" r = \"0.01\" style=\"fill:rgb(255,128,128)\"/>\n",
368 time2pixels(start), row * SLOT_MULT);
369 fprintf(svgfile, "<circle cx=\"%4.8f\" cy=\"%4.2f\" r = \"0.01\" style=\"fill:rgb(255,128,128)\"/>\n",
370 time2pixels(start), row * SLOT_MULT + SLOT_HEIGHT);
371}
372
373void svg_text(int Yslot, u64 start, const char *text)
374{
375 if (!svgfile)
376 return;
377
964a0b3d 378 fprintf(svgfile, "<text transform=\"translate(%4.8f,%4.8f)\">%s</text>\n",
f48d55ce
AV		 379 time2pixels(start), Yslot * SLOT_MULT+SLOT_HEIGHT/2, text);
380}
381
382static void svg_legenda_box(int X, const char *text, const char *style)
383{
384 double boxsize;
385 boxsize = SLOT_HEIGHT / 2;
386
387 fprintf(svgfile, "<rect x=\"%i\" width=\"%4.8f\" y=\"0\" height=\"%4.1f\" class=\"%s\"/>\n",
388 X, boxsize, boxsize, style);
964a0b3d 389 fprintf(svgfile, "<text transform=\"translate(%4.8f, %4.8f)\" font-size=\"%4.4fpt\">%s</text>\n",
f48d55ce
AV		 390 X + boxsize + 5, boxsize, 0.8 * boxsize, text);
391}
392
393void svg_legenda(void)
394{
395 if (!svgfile)
396 return;
397
398 svg_legenda_box(0, "Running", "sample");
399 svg_legenda_box(100, "Idle","rect.c1");
400 svg_legenda_box(200, "Deeper Idle", "rect.c3");
401 svg_legenda_box(350, "Deepest Idle", "rect.c6");
402 svg_legenda_box(550, "Sleeping", "process2");
403 svg_legenda_box(650, "Waiting for cpu", "waiting");
404 svg_legenda_box(800, "Blocked on IO", "blocked");
405}
406
407void svg_time_grid(u64 start, u64 end)
408{
409 u64 i;
410
411 first_time = start;
412 last_time = end;
413
414 first_time = first_time / 100000000 * 100000000;
415
416 if (!svgfile)
417 return;
418
419 i = first_time;
420 while (i < last_time) {
421 int color = 220;
422 double thickness = 0.075;
423 if ((i % 100000000) == 0) {
424 thickness = 0.5;
425 color = 192;
426 }
427 if ((i % 1000000000) == 0) {
428 thickness = 2.0;
429 color = 128;
430 }
431
432 fprintf(svgfile, "<line x1=\"%4.8f\" y1=\"%4.2f\" x2=\"%4.8f\" y2=\"%llu\" style=\"stroke:rgb(%i,%i,%i);stroke-width:%1.3f\"/>\n",
433 time2pixels(i), SLOT_MULT/2, time2pixels(i), total_height, color, color, color, thickness);
434
435 i += 10000000;
436 }
437}
438
439void svg_close(void)
440{
441 if (svgfile) {
442 fprintf(svgfile, "</svg>\n");
443 fclose(svgfile);
444 svgfile = NULL;
445 }
446}
Linux 6.x block layer and io_uring tree(s)