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linux-stable/tools/perf/util/svghelper.c
Arjan van de Ven 5094b65545 perf util: Make the timechart SVG width dynamic 
This patch adds a command line option for timechart that allows the
user to specify the width of the SVG file.

This patch also makes sure that each second of recording has at
least 200 units (pixels at 96 DPI) of width.  This impacts
recordings longer than 5 seconds; recordings shorter than 5 second
will scale up to have a width of 1000 units for the whole recording
(as before).

Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
LKML-Reference: <20090920181416.69570c5d@linux.intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-09-20 19:37:35 +02:00

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/*
* svghelper.c - helper functions for outputting svg
*
* (C) Copyright 2009 Intel Corporation
*
* Authors:
* Arjan van de Ven <arjan@linux.intel.com>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; version 2
* of the License.
*/
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include "svghelper.h"
static u64 first_time, last_time;
static u64 turbo_frequency, max_freq;
#define SLOT_MULT 30.0
#define SLOT_HEIGHT 25.0
int svg_page_width = 1000;
#define MIN_TEXT_SIZE 0.001
static u64 total_height;
static FILE *svgfile;
static double cpu2slot(int cpu)
{
return 2 * cpu + 1;
}
static double cpu2y(int cpu)
{
return cpu2slot(cpu) * SLOT_MULT;
}
static double time2pixels(u64 time)
{
double X;
X = 1.0 * svg_page_width * (time - first_time) / (last_time - first_time);
return X;
}
void open_svg(const char *filename, int cpus, int rows, u64 start, u64 end)
{
int new_width;
svgfile = fopen(filename, "w");
if (!svgfile) {
fprintf(stderr, "Cannot open %s for output\n", filename);
return;
}
first_time = start;
first_time = first_time / 100000000 * 100000000;
last_time = end;
/*
* if the recording is short, we default to a width of 1000, but
* for longer recordings we want at least 200 units of width per second
*/
new_width = (last_time - first_time) / 5000000;
if (new_width > svg_page_width)
svg_page_width = new_width;
total_height = (1 + rows + cpu2slot(cpus)) * SLOT_MULT;
fprintf(svgfile, "<?xml version=\"1.0\" standalone=\"no\"?> \n");
fprintf(svgfile, "<svg width=\"%i\" height=\"%llu\" version=\"1.1\" xmlns=\"http://www.w3.org/2000/svg\">\n", svg_page_width, total_height);
fprintf(svgfile, "<defs>\n <style type=\"text/css\">\n <![CDATA[\n");
fprintf(svgfile, " rect { stroke-width: 1; }\n");
fprintf(svgfile, " rect.process { fill:rgb(180,180,180); fill-opacity:0.9; stroke-width:1; stroke:rgb( 0, 0, 0); } \n");
fprintf(svgfile, " rect.process2 { fill:rgb(180,180,180); fill-opacity:0.9; stroke-width:0; stroke:rgb( 0, 0, 0); } \n");
fprintf(svgfile, " rect.sample { fill:rgb( 0, 0,255); fill-opacity:0.8; stroke-width:0; stroke:rgb( 0, 0, 0); } \n");
fprintf(svgfile, " rect.blocked { fill:rgb(255, 0, 0); fill-opacity:0.5; stroke-width:0; stroke:rgb( 0, 0, 0); } \n");
fprintf(svgfile, " rect.waiting { fill:rgb(214,214, 0); fill-opacity:0.3; stroke-width:0; stroke:rgb( 0, 0, 0); } \n");
fprintf(svgfile, " rect.WAITING { fill:rgb(255,214, 48); fill-opacity:0.6; stroke-width:0; stroke:rgb( 0, 0, 0); } \n");
fprintf(svgfile, " rect.cpu { fill:rgb(192,192,192); fill-opacity:0.2; stroke-width:0.5; stroke:rgb(128,128,128); } \n");
fprintf(svgfile, " rect.pstate { fill:rgb(128,128,128); fill-opacity:0.8; stroke-width:0; } \n");
fprintf(svgfile, " rect.c1 { fill:rgb(255,214,214); fill-opacity:0.5; stroke-width:0; } \n");
fprintf(svgfile, " rect.c2 { fill:rgb(255,172,172); fill-opacity:0.5; stroke-width:0; } \n");
fprintf(svgfile, " rect.c3 { fill:rgb(255,130,130); fill-opacity:0.5; stroke-width:0; } \n");
fprintf(svgfile, " rect.c4 { fill:rgb(255, 88, 88); fill-opacity:0.5; stroke-width:0; } \n");
fprintf(svgfile, " rect.c5 { fill:rgb(255, 44, 44); fill-opacity:0.5; stroke-width:0; } \n");
fprintf(svgfile, " rect.c6 { fill:rgb(255, 0, 0); fill-opacity:0.5; stroke-width:0; } \n");
fprintf(svgfile, " line.pstate { stroke:rgb(255,255, 0); stroke-opacity:0.8; stroke-width:2; } \n");
fprintf(svgfile, " ]]>\n </style>\n</defs>\n");
}
void svg_box(int Yslot, u64 start, u64 end, const char *type)
{
if (!svgfile)
return;
fprintf(svgfile, "<rect x=\"%4.8f\" width=\"%4.8f\" y=\"%4.1f\" height=\"%4.1f\" class=\"%s\"/>\n",
time2pixels(start), time2pixels(end)-time2pixels(start), Yslot * SLOT_MULT, SLOT_HEIGHT, type);
}
void svg_sample(int Yslot, int cpu, u64 start, u64 end)
{
double text_size;
if (!svgfile)
return;
fprintf(svgfile, "<rect x=\"%4.8f\" width=\"%4.8f\" y=\"%4.1f\" height=\"%4.1f\" class=\"sample\"/>\n",
time2pixels(start), time2pixels(end)-time2pixels(start), Yslot * SLOT_MULT, SLOT_HEIGHT);
text_size = (time2pixels(end)-time2pixels(start));
if (cpu > 9)
text_size = text_size/2;
if (text_size > 1.25)
text_size = 1.25;
if (text_size > MIN_TEXT_SIZE)
fprintf(svgfile, "<text transform=\"translate(%1.8f,%1.8f)\" font-size=\"%1.6fpt\">%i</text>\n",
time2pixels(start), Yslot * SLOT_MULT + SLOT_HEIGHT - 1, text_size, cpu + 1);
}
static char *time_to_string(u64 duration)
{
static char text[80];
text[0] = 0;
if (duration < 1000) /* less than 1 usec */
return text;
if (duration < 1000 * 1000) { /* less than 1 msec */
sprintf(text, "%4.1f us", duration / 1000.0);
return text;
}
sprintf(text, "%4.1f ms", duration / 1000.0 / 1000);
return text;
}
void svg_waiting(int Yslot, u64 start, u64 end)
{
char *text;
const char *style;
double font_size;
if (!svgfile)
return;
style = "waiting";
if (end-start > 10 * 1000000) /* 10 msec */
style = "WAITING";
text = time_to_string(end-start);
font_size = 1.0 * (time2pixels(end)-time2pixels(start)) / strlen(text);
if (font_size > 0.2)
font_size = 0.2;
fprintf(svgfile, "<rect x=\"%4.8f\" width=\"%4.8f\" y=\"%4.1f\" height=\"%4.1f\" class=\"%s\"/>\n",
time2pixels(start), time2pixels(end)-time2pixels(start), Yslot * SLOT_MULT, SLOT_HEIGHT, style);
if (font_size > MIN_TEXT_SIZE)
fprintf(svgfile, "<text transform=\"translate(%1.8f,%1.8f)\" font-size=\"%1.6fpt\">%s</text>\n",
time2pixels(start), Yslot * SLOT_MULT + 2, font_size, text);
}
static char *cpu_model(void)
{
static char cpu_m[255];
char buf[256];
FILE *file;
cpu_m[0] = 0;
/* CPU type */
file = fopen("/proc/cpuinfo", "r");
if (file) {
while (fgets(buf, 255, file)) {
if (strstr(buf, "model name")) {
strncpy(cpu_m, &buf[13], 255);
break;
}
}
fclose(file);
}
return cpu_m;
}
void svg_cpu_box(int cpu, u64 __max_freq, u64 __turbo_freq)
{
char cpu_string[80];
if (!svgfile)
return;
max_freq = __max_freq;
turbo_frequency = __turbo_freq;
fprintf(svgfile, "<rect x=\"%4.8f\" width=\"%4.8f\" y=\"%4.1f\" height=\"%4.1f\" class=\"cpu\"/>\n",
time2pixels(first_time),
time2pixels(last_time)-time2pixels(first_time),
cpu2y(cpu), SLOT_MULT+SLOT_HEIGHT);
sprintf(cpu_string, "CPU %i", (int)cpu+1);
fprintf(svgfile, "<text transform=\"translate(%4.8f,%4.8f)\">%s</text>\n",
10+time2pixels(first_time), cpu2y(cpu) + SLOT_HEIGHT/2, cpu_string);
fprintf(svgfile, "<text transform=\"translate(%4.8f,%4.8f)\" font-size=\"1.25pt\">%s</text>\n",
10+time2pixels(first_time), cpu2y(cpu) + SLOT_MULT + SLOT_HEIGHT - 4, cpu_model());
}
void svg_process(int cpu, u64 start, u64 end, const char *type, const char *name)
{
double width;
if (!svgfile)
return;
fprintf(svgfile, "<rect x=\"%4.8f\" width=\"%4.8f\" y=\"%4.1f\" height=\"%4.1f\" class=\"%s\"/>\n",
time2pixels(start), time2pixels(end)-time2pixels(start), cpu2y(cpu), SLOT_MULT+SLOT_HEIGHT, type);
width = time2pixels(end)-time2pixels(start);
if (width > 6)
width = 6;
if (width > MIN_TEXT_SIZE)
fprintf(svgfile, "<text transform=\"translate(%4.8f,%4.8f) rotate(90)\" font-size=\"%3.4fpt\">%s</text>\n",
time2pixels(start), cpu2y(cpu), width, name);
}
void svg_cstate(int cpu, u64 start, u64 end, int type)
{
double width;
char style[128];
if (!svgfile)
return;
if (type > 6)
type = 6;
sprintf(style, "c%i", type);
fprintf(svgfile, "<rect class=\"%s\" x=\"%4.8f\" width=\"%4.8f\" y=\"%4.1f\" height=\"%4.1f\"/>\n",
style,
time2pixels(start), time2pixels(end)-time2pixels(start),
cpu2y(cpu), SLOT_MULT+SLOT_HEIGHT);
width = time2pixels(end)-time2pixels(start);
if (width > 6)
width = 6;
if (width > MIN_TEXT_SIZE)
fprintf(svgfile, "<text transform=\"translate(%4.8f,%4.8f) rotate(90)\" font-size=\"%3.4fpt\">C%i</text>\n",
time2pixels(start), cpu2y(cpu), width, type);
}
static char *HzToHuman(unsigned long hz)
{
static char buffer[1024];
unsigned long long Hz;
memset(buffer, 0, 1024);
Hz = hz;
/* default: just put the Number in */
sprintf(buffer, "%9lli", Hz);
if (Hz > 1000)
sprintf(buffer, " %6lli Mhz", (Hz+500)/1000);
if (Hz > 1500000)
sprintf(buffer, " %6.2f Ghz", (Hz+5000.0)/1000000);
if (Hz == turbo_frequency)
sprintf(buffer, "Turbo");
return buffer;
}
void svg_pstate(int cpu, u64 start, u64 end, u64 freq)
{
double height = 0;
if (!svgfile)
return;
if (max_freq)
height = freq * 1.0 / max_freq * (SLOT_HEIGHT + SLOT_MULT);
height = 1 + cpu2y(cpu) + SLOT_MULT + SLOT_HEIGHT - height;
fprintf(svgfile, "<line x1=\"%4.8f\" x2=\"%4.8f\" y1=\"%4.1f\" y2=\"%4.1f\" class=\"pstate\"/>\n",
time2pixels(start), time2pixels(end), height, height);
fprintf(svgfile, "<text transform=\"translate(%4.8f,%4.8f)\" font-size=\"0.25pt\">%s</text>\n",
time2pixels(start), height+0.9, HzToHuman(freq));
}
void svg_partial_wakeline(u64 start, int row1, char *desc1, int row2, char *desc2)
{
double height;
if (!svgfile)
return;
if (row1 < row2) {
if (row1) {
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",
time2pixels(start), row1 * SLOT_MULT + SLOT_HEIGHT, time2pixels(start), row1 * SLOT_MULT + SLOT_HEIGHT + SLOT_MULT/32);
if (desc2)
fprintf(svgfile, "<text transform=\"translate(%4.8f,%4.8f) rotate(90)\" font-size=\"0.02pt\">%s &gt;</text>\n",
time2pixels(start), row1 * SLOT_MULT + SLOT_HEIGHT + SLOT_HEIGHT/48, desc2);
}
if (row2) {
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",
time2pixels(start), row2 * SLOT_MULT - SLOT_MULT/32, time2pixels(start), row2 * SLOT_MULT);
if (desc1)
fprintf(svgfile, "<text transform=\"translate(%4.8f,%4.8f) rotate(90)\" font-size=\"0.02pt\">%s &gt;</text>\n",
time2pixels(start), row2 * SLOT_MULT - SLOT_MULT/32, desc1);
}
} else {
if (row2) {
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",
time2pixels(start), row2 * SLOT_MULT + SLOT_HEIGHT, time2pixels(start), row2 * SLOT_MULT + SLOT_HEIGHT + SLOT_MULT/32);
if (desc1)
fprintf(svgfile, "<text transform=\"translate(%4.8f,%4.8f) rotate(90)\" font-size=\"0.02pt\">%s &lt;</text>\n",
time2pixels(start), row2 * SLOT_MULT + SLOT_HEIGHT + SLOT_MULT/48, desc1);
}
if (row1) {
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",
time2pixels(start), row1 * SLOT_MULT - SLOT_MULT/32, time2pixels(start), row1 * SLOT_MULT);
if (desc2)
fprintf(svgfile, "<text transform=\"translate(%4.8f,%4.8f) rotate(90)\" font-size=\"0.02pt\">%s &lt;</text>\n",
time2pixels(start), row1 * SLOT_MULT - SLOT_HEIGHT/32, desc2);
}
}
height = row1 * SLOT_MULT;
if (row2 > row1)
height += SLOT_HEIGHT;
if (row1)
fprintf(svgfile, "<circle cx=\"%4.8f\" cy=\"%4.2f\" r = \"0.01\" style=\"fill:rgb(32,255,32)\"/>\n",
time2pixels(start), height);
}
void svg_wakeline(u64 start, int row1, int row2)
{
double height;
if (!svgfile)
return;
if (row1 < row2)
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",
time2pixels(start), row1 * SLOT_MULT + SLOT_HEIGHT, time2pixels(start), row2 * SLOT_MULT);
else
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",
time2pixels(start), row2 * SLOT_MULT + SLOT_HEIGHT, time2pixels(start), row1 * SLOT_MULT);
height = row1 * SLOT_MULT;
if (row2 > row1)
height += SLOT_HEIGHT;
fprintf(svgfile, "<circle cx=\"%4.8f\" cy=\"%4.2f\" r = \"0.01\" style=\"fill:rgb(32,255,32)\"/>\n",
time2pixels(start), height);
}
void svg_interrupt(u64 start, int row)
{
if (!svgfile)
return;
fprintf(svgfile, "<circle cx=\"%4.8f\" cy=\"%4.2f\" r = \"0.01\" style=\"fill:rgb(255,128,128)\"/>\n",
time2pixels(start), row * SLOT_MULT);
fprintf(svgfile, "<circle cx=\"%4.8f\" cy=\"%4.2f\" r = \"0.01\" style=\"fill:rgb(255,128,128)\"/>\n",
time2pixels(start), row * SLOT_MULT + SLOT_HEIGHT);
}
void svg_text(int Yslot, u64 start, const char *text)
{
if (!svgfile)
return;
fprintf(svgfile, "<text transform=\"translate(%4.8f,%4.8f)\">%s</text>\n",
time2pixels(start), Yslot * SLOT_MULT+SLOT_HEIGHT/2, text);
}
static void svg_legenda_box(int X, const char *text, const char *style)
{
double boxsize;
boxsize = SLOT_HEIGHT / 2;
fprintf(svgfile, "<rect x=\"%i\" width=\"%4.8f\" y=\"0\" height=\"%4.1f\" class=\"%s\"/>\n",
X, boxsize, boxsize, style);
fprintf(svgfile, "<text transform=\"translate(%4.8f, %4.8f)\" font-size=\"%4.4fpt\">%s</text>\n",
X + boxsize + 5, boxsize, 0.8 * boxsize, text);
}
void svg_legenda(void)
{
if (!svgfile)
return;
svg_legenda_box(0, "Running", "sample");
svg_legenda_box(100, "Idle","rect.c1");
svg_legenda_box(200, "Deeper Idle", "rect.c3");
svg_legenda_box(350, "Deepest Idle", "rect.c6");
svg_legenda_box(550, "Sleeping", "process2");
svg_legenda_box(650, "Waiting for cpu", "waiting");
svg_legenda_box(800, "Blocked on IO", "blocked");
}
void svg_time_grid(void)
{
u64 i;
if (!svgfile)
return;
i = first_time;
while (i < last_time) {
int color = 220;
double thickness = 0.075;
if ((i % 100000000) == 0) {
thickness = 0.5;
color = 192;
}
if ((i % 1000000000) == 0) {
thickness = 2.0;
color = 128;
}
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",
time2pixels(i), SLOT_MULT/2, time2pixels(i), total_height, color, color, color, thickness);
i += 10000000;
}
}
void svg_close(void)
{
if (svgfile) {
fprintf(svgfile, "</svg>\n");
fclose(svgfile);
svgfile = NULL;
}
}
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