Root/tools/perf/util/svghelper.c

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
29int svg_page_width = 1000;
30
31#define MIN_TEXT_SIZE 0.01
32
33static u64 total_height;
34static FILE *svgfile;
35
36static double cpu2slot(int cpu)
37{
38    return 2 * cpu + 1;
39}
40
41static double cpu2y(int cpu)
42{
43    return cpu2slot(cpu) * SLOT_MULT;
44}
45
46static double time2pixels(u64 time)
47{
48    double X;
49
50    X = 1.0 * svg_page_width * (time - first_time) / (last_time - first_time);
51    return X;
52}
53
54/*
55 * Round text sizes so that the svg viewer only needs a discrete
56 * number of renderings of the font
57 */
58static double round_text_size(double size)
59{
60    int loop = 100;
61    double target = 10.0;
62
63    if (size >= 10.0)
64        return size;
65    while (loop--) {
66        if (size >= target)
67            return target;
68        target = target / 2.0;
69    }
70    return size;
71}
72
73void open_svg(const char *filename, int cpus, int rows, u64 start, u64 end)
74{
75    int new_width;
76
77    svgfile = fopen(filename, "w");
78    if (!svgfile) {
79        fprintf(stderr, "Cannot open %s for output\n", filename);
80        return;
81    }
82    first_time = start;
83    first_time = first_time / 100000000 * 100000000;
84    last_time = end;
85
86    /*
87     * if the recording is short, we default to a width of 1000, but
88     * for longer recordings we want at least 200 units of width per second
89     */
90    new_width = (last_time - first_time) / 5000000;
91
92    if (new_width > svg_page_width)
93        svg_page_width = new_width;
94
95    total_height = (1 + rows + cpu2slot(cpus)) * SLOT_MULT;
96    fprintf(svgfile, "<?xml version=\"1.0\" standalone=\"no\"?> \n");
97    fprintf(svgfile, "<svg width=\"%i\" height=\"%llu\" version=\"1.1\" xmlns=\"http://www.w3.org/2000/svg\">\n", svg_page_width, total_height);
98
99    fprintf(svgfile, "<defs>\n <style type=\"text/css\">\n <![CDATA[\n");
100
101    fprintf(svgfile, " rect { stroke-width: 1; }\n");
102    fprintf(svgfile, " rect.process { fill:rgb(180,180,180); fill-opacity:0.9; stroke-width:1; stroke:rgb( 0, 0, 0); } \n");
103    fprintf(svgfile, " rect.process2 { fill:rgb(180,180,180); fill-opacity:0.9; stroke-width:0; stroke:rgb( 0, 0, 0); } \n");
104    fprintf(svgfile, " rect.sample { fill:rgb( 0, 0,255); fill-opacity:0.8; stroke-width:0; stroke:rgb( 0, 0, 0); } \n");
105    fprintf(svgfile, " rect.blocked { fill:rgb(255, 0, 0); fill-opacity:0.5; stroke-width:0; stroke:rgb( 0, 0, 0); } \n");
106    fprintf(svgfile, " rect.waiting { fill:rgb(224,214, 0); fill-opacity:0.8; stroke-width:0; stroke:rgb( 0, 0, 0); } \n");
107    fprintf(svgfile, " rect.WAITING { fill:rgb(255,214, 48); fill-opacity:0.6; stroke-width:0; stroke:rgb( 0, 0, 0); } \n");
108    fprintf(svgfile, " rect.cpu { fill:rgb(192,192,192); fill-opacity:0.2; stroke-width:0.5; stroke:rgb(128,128,128); } \n");
109    fprintf(svgfile, " rect.pstate { fill:rgb(128,128,128); fill-opacity:0.8; stroke-width:0; } \n");
110    fprintf(svgfile, " rect.c1 { fill:rgb(255,214,214); fill-opacity:0.5; stroke-width:0; } \n");
111    fprintf(svgfile, " rect.c2 { fill:rgb(255,172,172); fill-opacity:0.5; stroke-width:0; } \n");
112    fprintf(svgfile, " rect.c3 { fill:rgb(255,130,130); fill-opacity:0.5; stroke-width:0; } \n");
113    fprintf(svgfile, " rect.c4 { fill:rgb(255, 88, 88); fill-opacity:0.5; stroke-width:0; } \n");
114    fprintf(svgfile, " rect.c5 { fill:rgb(255, 44, 44); fill-opacity:0.5; stroke-width:0; } \n");
115    fprintf(svgfile, " rect.c6 { fill:rgb(255, 0, 0); fill-opacity:0.5; stroke-width:0; } \n");
116    fprintf(svgfile, " line.pstate { stroke:rgb(255,255, 0); stroke-opacity:0.8; stroke-width:2; } \n");
117
118    fprintf(svgfile, " ]]>\n </style>\n</defs>\n");
119}
120
121void svg_box(int Yslot, u64 start, u64 end, const char *type)
122{
123    if (!svgfile)
124        return;
125
126    fprintf(svgfile, "<rect x=\"%4.8f\" width=\"%4.8f\" y=\"%4.1f\" height=\"%4.1f\" class=\"%s\"/>\n",
127        time2pixels(start), time2pixels(end)-time2pixels(start), Yslot * SLOT_MULT, SLOT_HEIGHT, type);
128}
129
130void svg_sample(int Yslot, int cpu, u64 start, u64 end)
131{
132    double text_size;
133    if (!svgfile)
134        return;
135
136    fprintf(svgfile, "<rect x=\"%4.8f\" width=\"%4.8f\" y=\"%4.1f\" height=\"%4.1f\" class=\"sample\"/>\n",
137        time2pixels(start), time2pixels(end)-time2pixels(start), Yslot * SLOT_MULT, SLOT_HEIGHT);
138
139    text_size = (time2pixels(end)-time2pixels(start));
140    if (cpu > 9)
141        text_size = text_size/2;
142    if (text_size > 1.25)
143        text_size = 1.25;
144    text_size = round_text_size(text_size);
145
146    if (text_size > MIN_TEXT_SIZE)
147        fprintf(svgfile, "<text x=\"%1.8f\" y=\"%1.8f\" font-size=\"%1.8fpt\">%i</text>\n",
148            time2pixels(start), Yslot * SLOT_MULT + SLOT_HEIGHT - 1, text_size, cpu + 1);
149
150}
151
152static char *time_to_string(u64 duration)
153{
154    static char text[80];
155
156    text[0] = 0;
157
158    if (duration < 1000) /* less than 1 usec */
159        return text;
160
161    if (duration < 1000 * 1000) { /* less than 1 msec */
162        sprintf(text, "%4.1f us", duration / 1000.0);
163        return text;
164    }
165    sprintf(text, "%4.1f ms", duration / 1000.0 / 1000);
166
167    return text;
168}
169
170void svg_waiting(int Yslot, u64 start, u64 end)
171{
172    char *text;
173    const char *style;
174    double font_size;
175
176    if (!svgfile)
177        return;
178
179    style = "waiting";
180
181    if (end-start > 10 * 1000000) /* 10 msec */
182        style = "WAITING";
183
184    text = time_to_string(end-start);
185
186    font_size = 1.0 * (time2pixels(end)-time2pixels(start));
187
188    if (font_size > 3)
189        font_size = 3;
190
191    font_size = round_text_size(font_size);
192
193    fprintf(svgfile, "<g transform=\"translate(%4.8f,%4.8f)\">\n", time2pixels(start), Yslot * SLOT_MULT);
194    fprintf(svgfile, "<rect x=\"0\" width=\"%4.8f\" y=\"0\" height=\"%4.1f\" class=\"%s\"/>\n",
195        time2pixels(end)-time2pixels(start), SLOT_HEIGHT, style);
196    if (font_size > MIN_TEXT_SIZE)
197        fprintf(svgfile, "<text transform=\"rotate(90)\" font-size=\"%1.8fpt\"> %s</text>\n",
198            font_size, text);
199    fprintf(svgfile, "</g>\n");
200}
201
202static char *cpu_model(void)
203{
204    static char cpu_m[255];
205    char buf[256];
206    FILE *file;
207
208    cpu_m[0] = 0;
209    /* CPU type */
210    file = fopen("/proc/cpuinfo", "r");
211    if (file) {
212        while (fgets(buf, 255, file)) {
213            if (strstr(buf, "model name")) {
214                strncpy(cpu_m, &buf[13], 255);
215                break;
216            }
217        }
218        fclose(file);
219    }
220
221    /* CPU type */
222    file = fopen("/sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies", "r");
223    if (file) {
224        while (fgets(buf, 255, file)) {
225            unsigned int freq;
226            freq = strtoull(buf, NULL, 10);
227            if (freq > max_freq)
228                max_freq = freq;
229        }
230        fclose(file);
231    }
232    return cpu_m;
233}
234
235void svg_cpu_box(int cpu, u64 __max_freq, u64 __turbo_freq)
236{
237    char cpu_string[80];
238    if (!svgfile)
239        return;
240
241    max_freq = __max_freq;
242    turbo_frequency = __turbo_freq;
243
244    fprintf(svgfile, "<rect x=\"%4.8f\" width=\"%4.8f\" y=\"%4.1f\" height=\"%4.1f\" class=\"cpu\"/>\n",
245        time2pixels(first_time),
246        time2pixels(last_time)-time2pixels(first_time),
247        cpu2y(cpu), SLOT_MULT+SLOT_HEIGHT);
248
249    sprintf(cpu_string, "CPU %i", (int)cpu+1);
250    fprintf(svgfile, "<text x=\"%4.8f\" y=\"%4.8f\">%s</text>\n",
251        10+time2pixels(first_time), cpu2y(cpu) + SLOT_HEIGHT/2, cpu_string);
252
253    fprintf(svgfile, "<text transform=\"translate(%4.8f,%4.8f)\" font-size=\"1.25pt\">%s</text>\n",
254        10+time2pixels(first_time), cpu2y(cpu) + SLOT_MULT + SLOT_HEIGHT - 4, cpu_model());
255}
256
257void svg_process(int cpu, u64 start, u64 end, const char *type, const char *name)
258{
259    double width;
260
261    if (!svgfile)
262        return;
263
264
265    fprintf(svgfile, "<g transform=\"translate(%4.8f,%4.8f)\">\n", time2pixels(start), cpu2y(cpu));
266    fprintf(svgfile, "<rect x=\"0\" width=\"%4.8f\" y=\"0\" height=\"%4.1f\" class=\"%s\"/>\n",
267        time2pixels(end)-time2pixels(start), SLOT_MULT+SLOT_HEIGHT, type);
268    width = time2pixels(end)-time2pixels(start);
269    if (width > 6)
270        width = 6;
271
272    width = round_text_size(width);
273
274    if (width > MIN_TEXT_SIZE)
275        fprintf(svgfile, "<text transform=\"rotate(90)\" font-size=\"%3.8fpt\">%s</text>\n",
276            width, name);
277
278    fprintf(svgfile, "</g>\n");
279}
280
281void svg_cstate(int cpu, u64 start, u64 end, int type)
282{
283    double width;
284    char style[128];
285
286    if (!svgfile)
287        return;
288
289
290    if (type > 6)
291        type = 6;
292    sprintf(style, "c%i", type);
293
294    fprintf(svgfile, "<rect class=\"%s\" x=\"%4.8f\" width=\"%4.8f\" y=\"%4.1f\" height=\"%4.1f\"/>\n",
295        style,
296        time2pixels(start), time2pixels(end)-time2pixels(start),
297        cpu2y(cpu), SLOT_MULT+SLOT_HEIGHT);
298
299    width = (time2pixels(end)-time2pixels(start))/2.0;
300    if (width > 6)
301        width = 6;
302
303    width = round_text_size(width);
304
305    if (width > MIN_TEXT_SIZE)
306        fprintf(svgfile, "<text x=\"%4.8f\" y=\"%4.8f\" font-size=\"%3.8fpt\">C%i</text>\n",
307            time2pixels(start), cpu2y(cpu)+width, width, type);
308}
309
310static char *HzToHuman(unsigned long hz)
311{
312    static char buffer[1024];
313    unsigned long long Hz;
314
315    memset(buffer, 0, 1024);
316
317    Hz = hz;
318
319    /* default: just put the Number in */
320    sprintf(buffer, "%9lli", Hz);
321
322    if (Hz > 1000)
323        sprintf(buffer, " %6lli Mhz", (Hz+500)/1000);
324
325    if (Hz > 1500000)
326        sprintf(buffer, " %6.2f Ghz", (Hz+5000.0)/1000000);
327
328    if (Hz == turbo_frequency)
329        sprintf(buffer, "Turbo");
330
331    return buffer;
332}
333
334void svg_pstate(int cpu, u64 start, u64 end, u64 freq)
335{
336    double height = 0;
337
338    if (!svgfile)
339        return;
340
341    if (max_freq)
342        height = freq * 1.0 / max_freq * (SLOT_HEIGHT + SLOT_MULT);
343    height = 1 + cpu2y(cpu) + SLOT_MULT + SLOT_HEIGHT - height;
344    fprintf(svgfile, "<line x1=\"%4.8f\" x2=\"%4.8f\" y1=\"%4.1f\" y2=\"%4.1f\" class=\"pstate\"/>\n",
345        time2pixels(start), time2pixels(end), height, height);
346    fprintf(svgfile, "<text x=\"%4.8f\" y=\"%4.8f\" font-size=\"0.25pt\">%s</text>\n",
347        time2pixels(start), height+0.9, HzToHuman(freq));
348
349}
350
351
352void svg_partial_wakeline(u64 start, int row1, char *desc1, int row2, char *desc2)
353{
354    double height;
355
356    if (!svgfile)
357        return;
358
359
360    if (row1 < row2) {
361        if (row1) {
362            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",
363                time2pixels(start), row1 * SLOT_MULT + SLOT_HEIGHT, time2pixels(start), row1 * SLOT_MULT + SLOT_HEIGHT + SLOT_MULT/32);
364            if (desc2)
365                fprintf(svgfile, "<g transform=\"translate(%4.8f,%4.8f)\"><text transform=\"rotate(90)\" font-size=\"0.02pt\">%s &gt;</text></g>\n",
366                    time2pixels(start), row1 * SLOT_MULT + SLOT_HEIGHT + SLOT_HEIGHT/48, desc2);
367        }
368        if (row2) {
369            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",
370                time2pixels(start), row2 * SLOT_MULT - SLOT_MULT/32, time2pixels(start), row2 * SLOT_MULT);
371            if (desc1)
372                fprintf(svgfile, "<g transform=\"translate(%4.8f,%4.8f)\"><text transform=\"rotate(90)\" font-size=\"0.02pt\">%s &gt;</text></g>\n",
373                    time2pixels(start), row2 * SLOT_MULT - SLOT_MULT/32, desc1);
374        }
375    } else {
376        if (row2) {
377            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",
378                time2pixels(start), row2 * SLOT_MULT + SLOT_HEIGHT, time2pixels(start), row2 * SLOT_MULT + SLOT_HEIGHT + SLOT_MULT/32);
379            if (desc1)
380                fprintf(svgfile, "<g transform=\"translate(%4.8f,%4.8f)\"><text transform=\"rotate(90)\" font-size=\"0.02pt\">%s &lt;</text></g>\n",
381                    time2pixels(start), row2 * SLOT_MULT + SLOT_HEIGHT + SLOT_MULT/48, desc1);
382        }
383        if (row1) {
384            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",
385                time2pixels(start), row1 * SLOT_MULT - SLOT_MULT/32, time2pixels(start), row1 * SLOT_MULT);
386            if (desc2)
387                fprintf(svgfile, "<g transform=\"translate(%4.8f,%4.8f)\"><text transform=\"rotate(90)\" font-size=\"0.02pt\">%s &lt;</text></g>\n",
388                    time2pixels(start), row1 * SLOT_MULT - SLOT_HEIGHT/32, desc2);
389        }
390    }
391    height = row1 * SLOT_MULT;
392    if (row2 > row1)
393        height += SLOT_HEIGHT;
394    if (row1)
395        fprintf(svgfile, "<circle cx=\"%4.8f\" cy=\"%4.2f\" r = \"0.01\" style=\"fill:rgb(32,255,32)\"/>\n",
396            time2pixels(start), height);
397}
398
399void svg_wakeline(u64 start, int row1, int row2)
400{
401    double height;
402
403    if (!svgfile)
404        return;
405
406
407    if (row1 < row2)
408        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",
409            time2pixels(start), row1 * SLOT_MULT + SLOT_HEIGHT, time2pixels(start), row2 * SLOT_MULT);
410    else
411        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",
412            time2pixels(start), row2 * SLOT_MULT + SLOT_HEIGHT, time2pixels(start), row1 * SLOT_MULT);
413
414    height = row1 * SLOT_MULT;
415    if (row2 > row1)
416        height += SLOT_HEIGHT;
417    fprintf(svgfile, "<circle cx=\"%4.8f\" cy=\"%4.2f\" r = \"0.01\" style=\"fill:rgb(32,255,32)\"/>\n",
418            time2pixels(start), height);
419}
420
421void svg_interrupt(u64 start, int row)
422{
423    if (!svgfile)
424        return;
425
426    fprintf(svgfile, "<circle cx=\"%4.8f\" cy=\"%4.2f\" r = \"0.01\" style=\"fill:rgb(255,128,128)\"/>\n",
427            time2pixels(start), row * SLOT_MULT);
428    fprintf(svgfile, "<circle cx=\"%4.8f\" cy=\"%4.2f\" r = \"0.01\" style=\"fill:rgb(255,128,128)\"/>\n",
429            time2pixels(start), row * SLOT_MULT + SLOT_HEIGHT);
430}
431
432void svg_text(int Yslot, u64 start, const char *text)
433{
434    if (!svgfile)
435        return;
436
437    fprintf(svgfile, "<text x=\"%4.8f\" y=\"%4.8f\">%s</text>\n",
438        time2pixels(start), Yslot * SLOT_MULT+SLOT_HEIGHT/2, text);
439}
440
441static void svg_legenda_box(int X, const char *text, const char *style)
442{
443    double boxsize;
444    boxsize = SLOT_HEIGHT / 2;
445
446    fprintf(svgfile, "<rect x=\"%i\" width=\"%4.8f\" y=\"0\" height=\"%4.1f\" class=\"%s\"/>\n",
447        X, boxsize, boxsize, style);
448    fprintf(svgfile, "<text transform=\"translate(%4.8f, %4.8f)\" font-size=\"%4.8fpt\">%s</text>\n",
449        X + boxsize + 5, boxsize, 0.8 * boxsize, text);
450}
451
452void svg_legenda(void)
453{
454    if (!svgfile)
455        return;
456
457    svg_legenda_box(0, "Running", "sample");
458    svg_legenda_box(100, "Idle","rect.c1");
459    svg_legenda_box(200, "Deeper Idle", "rect.c3");
460    svg_legenda_box(350, "Deepest Idle", "rect.c6");
461    svg_legenda_box(550, "Sleeping", "process2");
462    svg_legenda_box(650, "Waiting for cpu", "waiting");
463    svg_legenda_box(800, "Blocked on IO", "blocked");
464}
465
466void svg_time_grid(void)
467{
468    u64 i;
469
470    if (!svgfile)
471        return;
472
473    i = first_time;
474    while (i < last_time) {
475        int color = 220;
476        double thickness = 0.075;
477        if ((i % 100000000) == 0) {
478            thickness = 0.5;
479            color = 192;
480        }
481        if ((i % 1000000000) == 0) {
482            thickness = 2.0;
483            color = 128;
484        }
485
486        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",
487            time2pixels(i), SLOT_MULT/2, time2pixels(i), total_height, color, color, color, thickness);
488
489        i += 10000000;
490    }
491}
492
493void svg_close(void)
494{
495    if (svgfile) {
496        fprintf(svgfile, "</svg>\n");
497        fclose(svgfile);
498        svgfile = NULL;
499    }
500}
501

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