e2c5185af3c50d9510e5df68aa37abdc6c0d3aacChristopher Kiick

e2c5185af3c50d9510e5df68aa37abdc6c0d3aacChristopher Kiick

e2c5185af3c50d9510e5df68aa37abdc6c0d3aacChristopher Kiick#include <stdio.h>

e2c5185af3c50d9510e5df68aa37abdc6c0d3aacChristopher Kiick#include <stdarg.h>

e2c5185af3c50d9510e5df68aa37abdc6c0d3aacChristopher Kiick#include <stdlib.h>

e2c5185af3c50d9510e5df68aa37abdc6c0d3aacChristopher Kiick#include <string.h>

e2c5185af3c50d9510e5df68aa37abdc6c0d3aacChristopher Kiick#include <time.h>

e2c5185af3c50d9510e5df68aa37abdc6c0d3aacChristopher Kiick#include <limits.h>

e2c5185af3c50d9510e5df68aa37abdc6c0d3aacChristopher Kiick#include <unistd.h>

e2c5185af3c50d9510e5df68aa37abdc6c0d3aacChristopher Kiick#include <sys/utsname.h>

e2c5185af3c50d9510e5df68aa37abdc6c0d3aacChristopher Kiick#include <sys/stat.h>

e2c5185af3c50d9510e5df68aa37abdc6c0d3aacChristopher Kiick#include <fcntl.h>

e2c5185af3c50d9510e5df68aa37abdc6c0d3aacChristopher Kiick

e2c5185af3c50d9510e5df68aa37abdc6c0d3aacChristopher Kiick#include "util.h"

e2c5185af3c50d9510e5df68aa37abdc6c0d3aacChristopher Kiick#include "macro.h"

e2c5185af3c50d9510e5df68aa37abdc6c0d3aacChristopher Kiick#include "store.h"

e2c5185af3c50d9510e5df68aa37abdc6c0d3aacChristopher Kiick#include "svg.h"

e2c5185af3c50d9510e5df68aa37abdc6c0d3aacChristopher Kiick#include "bootchart.h"

e2c5185af3c50d9510e5df68aa37abdc6c0d3aacChristopher Kiick

e2c5185af3c50d9510e5df68aa37abdc6c0d3aacChristopher Kiick#define time_to_graph(t) ((t) * arg_scale_x)

e2c5185af3c50d9510e5df68aa37abdc6c0d3aacChristopher Kiick#define ps_to_graph(n) ((n) * arg_scale_y)

e2c5185af3c50d9510e5df68aa37abdc6c0d3aacChristopher Kiick#define kb_to_graph(m) ((m) * arg_scale_y * 0.0001)

e2c5185af3c50d9510e5df68aa37abdc6c0d3aacChristopher Kiick#define to_color(n) (192.0 - ((n) * 192.0))

e2c5185af3c50d9510e5df68aa37abdc6c0d3aacChristopher Kiick

e2c5185af3c50d9510e5df68aa37abdc6c0d3aacChristopher Kiickstatic char str[8092];

e2c5185af3c50d9510e5df68aa37abdc6c0d3aacChristopher Kiick

e2c5185af3c50d9510e5df68aa37abdc6c0d3aacChristopher Kiick#define svg(a...) do { snprintf(str, 8092, ## a); fputs(str, of); fflush(of); } while (0)

e2c5185af3c50d9510e5df68aa37abdc6c0d3aacChristopher Kiick

e2c5185af3c50d9510e5df68aa37abdc6c0d3aacChristopher Kiickstatic const char * const colorwheel[12] = {

e2c5185af3c50d9510e5df68aa37abdc6c0d3aacChristopher Kiick "rgb(255,32,32)", // red

e2c5185af3c50d9510e5df68aa37abdc6c0d3aacChristopher Kiick "rgb(32,192,192)", // cyan

e2c5185af3c50d9510e5df68aa37abdc6c0d3aacChristopher Kiick "rgb(255,128,32)", // orange

e2c5185af3c50d9510e5df68aa37abdc6c0d3aacChristopher Kiick "rgb(128,32,192)", // blue-violet

"rgb(255,255,32)", // yellow

"rgb(192,32,128)", // red-violet

"rgb(32,255,32)", // green

"rgb(255,64,32)", // red-orange

"rgb(32,32,255)", // blue

"rgb(255,192,32)", // yellow-orange

"rgb(192,32,192)", // violet

"rgb(32,192,32)" // yellow-green

};

static double idletime = -1.0;

static int pfiltered = 0;

static int pcount = 0;

static int kcount = 0;

static float psize = 0;

static float ksize = 0;

static float esize = 0;

static void svg_header(void) {

float w;

float h;

/* min width is about 1600px due to the label */

w = 150.0 + 10.0 + time_to_graph(sampletime[samples-1] - graph_start);

w = ((w < 1600.0) ? 1600.0 : w);

/* height is variable based on pss, psize, ksize */

h = 400.0 + (arg_scale_y * 30.0) /* base graphs and title */

+ (arg_pss ? (100.0 * arg_scale_y) + (arg_scale_y * 7.0) : 0.0) /* pss estimate */

+ psize + ksize + esize;

svg("<?xml version=\"1.0\" standalone=\"no\"?>\n");

svg("<!DOCTYPE svg PUBLIC \"-//W3C//DTD SVG 1.1//EN\" ");

svg("\"http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd\">\n");

//svg("<g transform=\"translate(10,%d)\">\n", 1000 + 150 + (pcount * 20));

svg("<svg width=\"%.0fpx\" height=\"%.0fpx\" version=\"1.1\" ",

w, h);

svg("xmlns=\"http://www.w3.org/2000/svg\">\n\n");

/* write some basic info as a comment, including some help */

svg("<!-- This file is a bootchart SVG file. It is best rendered in a browser -->\n");

svg("<!-- such as Chrome, Chromium, or Firefox. Other applications that -->\n");

svg("<!-- render these files properly but more slowly are ImageMagick, gimp, -->\n");

svg("<!-- inkscape, etc. To display the files on your system, just point -->\n");

svg("<!-- your browser to file:///run/log/ and click. This bootchart was -->\n\n");

svg("<!-- generated by bootchart version %s, running with options: -->\n", VERSION);

svg("<!-- hz=\"%f\" n=\"%d\" -->\n", arg_hz, arg_samples_len);

svg("<!-- x=\"%f\" y=\"%f\" -->\n", arg_scale_x, arg_scale_y);

svg("<!-- rel=\"%d\" f=\"%d\" -->\n", arg_relative, arg_filter);

svg("<!-- p=\"%d\" e=\"%d\" -->\n", arg_pss, arg_entropy);

svg("<!-- o=\"%s\" i=\"%s\" -->\n\n", arg_output_path, arg_init_path);

/* style sheet */

svg("<defs>\n <style type=\"text/css\">\n <![CDATA[\n");

svg(" rect { stroke-width: 1; }\n");

svg(" rect.cpu { fill: rgb(64,64,240); stroke-width: 0; fill-opacity: 0.7; }\n");

svg(" rect.wait { fill: rgb(240,240,0); stroke-width: 0; fill-opacity: 0.7; }\n");

svg(" rect.bi { fill: rgb(240,128,128); stroke-width: 0; fill-opacity: 0.7; }\n");

svg(" rect.bo { fill: rgb(192,64,64); stroke-width: 0; fill-opacity: 0.7; }\n");

svg(" rect.ps { fill: rgb(192,192,192); stroke: rgb(128,128,128); fill-opacity: 0.7; }\n");

svg(" rect.krnl { fill: rgb(240,240,0); stroke: rgb(128,128,128); fill-opacity: 0.7; }\n");

svg(" rect.box { fill: rgb(240,240,240); stroke: rgb(192,192,192); }\n");

svg(" rect.clrw { stroke-width: 0; fill-opacity: 0.7;}\n");

svg(" line { stroke: rgb(64,64,64); stroke-width: 1; }\n");

svg("// line.sec1 { }\n");

svg(" line.sec5 { stroke-width: 2; }\n");

svg(" line.sec01 { stroke: rgb(224,224,224); stroke-width: 1; }\n");

svg(" line.dot { stroke-dasharray: 2 4; }\n");

svg(" line.idle { stroke: rgb(64,64,64); stroke-dasharray: 10 6; stroke-opacity: 0.7; }\n");

svg(" .run { font-size: 8; font-style: italic; }\n");

svg(" text { font-family: Verdana, Helvetica; font-size: 10; }\n");

svg(" text.sec { font-size: 8; }\n");

svg(" text.t1 { font-size: 24; }\n");

svg(" text.t2 { font-size: 12; }\n");

svg(" text.idle { font-size: 18; }\n");

svg(" ]]>\n </style>\n</defs>\n\n");

}

static void svg_title(const char *build) {

char cmdline[256] = "";

char filename[PATH_MAX];

char buf[256];

char rootbdev[16] = "Unknown";

char model[256] = "Unknown";

char date[256] = "Unknown";

char cpu[256] = "Unknown";

char *c;

FILE *f;

time_t t;

int fd;

struct utsname uts;

/* grab /proc/cmdline */

fd = openat(procfd, "cmdline", O_RDONLY);

f = fdopen(fd, "r");

if (f) {

if (!fgets(cmdline, 255, f))

sprintf(cmdline, "Unknown");

fclose(f);

}

/* extract root fs so we can find disk model name in sysfs */

/* FIXME: this works only in the simple case */

c = strstr(cmdline, "root=/dev/");

if (c) {

strncpy(rootbdev, &c[10], 3);

rootbdev[3] = '\0';

sprintf(filename, "block/%s/device/model", rootbdev);

fd = openat(sysfd, filename, O_RDONLY);

f = fdopen(fd, "r");

if (f) {

if (!fgets(model, 255, f))

fprintf(stderr, "Error reading disk model for %s\n", rootbdev);

fclose(f);

}

}

/* various utsname parameters */

if (uname(&uts))

fprintf(stderr, "Error getting uname info\n");

/* date */

t = time(NULL);

strftime(date, sizeof(date), "%a, %d %b %Y %H:%M:%S %z", localtime(&t));

/* CPU type */

fd = openat(procfd, "cpuinfo", O_RDONLY);

f = fdopen(fd, "r");

if (f) {

while (fgets(buf, 255, f)) {

if (strstr(buf, "model name")) {

strncpy(cpu, &buf[13], 255);

break;

}

}

fclose(f);

}

svg("<text class=\"t1\" x=\"0\" y=\"30\">Bootchart for %s - %s</text>\n",

uts.nodename, date);

svg("<text class=\"t2\" x=\"20\" y=\"50\">System: %s %s %s %s</text>\n",

uts.sysname, uts.release, uts.version, uts.machine);

svg("<text class=\"t2\" x=\"20\" y=\"65\">CPU: %s</text>\n",

cpu);

svg("<text class=\"t2\" x=\"20\" y=\"80\">Disk: %s</text>\n",

model);

svg("<text class=\"t2\" x=\"20\" y=\"95\">Boot options: %s</text>\n",

cmdline);

svg("<text class=\"t2\" x=\"20\" y=\"110\">Build: %s</text>\n",

build);

svg("<text class=\"t2\" x=\"20\" y=\"125\">Log start time: %.03fs</text>\n", log_start);

svg("<text class=\"t2\" x=\"20\" y=\"140\">Idle time: ");

if (idletime >= 0.0)

svg("%.03fs", idletime);

else

svg("Not detected");

svg("</text>\n");

svg("<text class=\"sec\" x=\"20\" y=\"155\">Graph data: %.03f samples/sec, recorded %i total, dropped %i samples, %i processes, %i filtered</text>\n",

arg_hz, arg_samples_len, overrun, pscount, pfiltered);

}

static void svg_graph_box(int height) {

double d = 0.0;

int i = 0;

/* outside box, fill */

svg("<rect class=\"box\" x=\"%.03f\" y=\"0\" width=\"%.03f\" height=\"%.03f\" />\n",

time_to_graph(0.0),

time_to_graph(sampletime[samples-1] - graph_start),

ps_to_graph(height));

for (d = graph_start; d <= sampletime[samples-1];

d += (arg_scale_x < 2.0 ? 60.0 : arg_scale_x < 10.0 ? 1.0 : 0.1)) {

/* lines for each second */

if (i % 50 == 0)

svg(" <line class=\"sec5\" x1=\"%.03f\" y1=\"0\" x2=\"%.03f\" y2=\"%.03f\" />\n",

time_to_graph(d - graph_start),

time_to_graph(d - graph_start),

ps_to_graph(height));

else if (i % 10 == 0)

svg(" <line class=\"sec1\" x1=\"%.03f\" y1=\"0\" x2=\"%.03f\" y2=\"%.03f\" />\n",

time_to_graph(d - graph_start),

time_to_graph(d - graph_start),

ps_to_graph(height));

else

svg(" <line class=\"sec01\" x1=\"%.03f\" y1=\"0\" x2=\"%.03f\" y2=\"%.03f\" />\n",

time_to_graph(d - graph_start),

time_to_graph(d - graph_start),

ps_to_graph(height));

/* time label */

if (i % 10 == 0)

svg(" <text class=\"sec\" x=\"%.03f\" y=\"%.03f\" >%.01fs</text>\n",

time_to_graph(d - graph_start),

-5.0,

d - graph_start);

i++;

}

}

static char* xml_comment_encode(const char* name) {

char *enc_name, *p;

enc_name = strdup(name);

if (!enc_name)

return NULL;

for (p = enc_name; *p; p++)

if (p[0] == '-' && p[1] == '-')

p[1] = '_';

return enc_name;

}

static void svg_pss_graph(void) {

struct ps_struct *ps;

int i;

svg("\n\n<!-- Pss memory size graph -->\n");

svg("\n <text class=\"t2\" x=\"5\" y=\"-15\">Memory allocation - Pss</text>\n");

/* vsize 1000 == 1000mb */

svg_graph_box(100);

/* draw some hlines for usable memory sizes */

for (i = 100000; i < 1000000; i += 100000) {

svg(" <line class=\"sec01\" x1=\"%.03f\" y1=\"%.0f\" x2=\"%.03f\" y2=\"%.0f\"/>\n",

time_to_graph(.0),

kb_to_graph(i),

time_to_graph(sampletime[samples-1] - graph_start),

kb_to_graph(i));

svg(" <text class=\"sec\" x=\"%.03f\" y=\"%.0f\">%dM</text>\n",

time_to_graph(sampletime[samples-1] - graph_start) + 5,

kb_to_graph(i), (1000000 - i) / 1000);

}

svg("\n");

/* now plot the graph itself */

for (i = 1; i < samples ; i++) {

int bottom;

int top;

bottom = 0;

top = 0;

/* put all the small pss blocks into the bottom */

ps = ps_first;

while (ps->next_ps) {

ps = ps->next_ps;

if (!ps)

continue;

if (ps->sample[i].pss <= (100 * arg_scale_y))

top += ps->sample[i].pss;

};

svg(" <rect class=\"clrw\" style=\"fill: %s\" x=\"%.03f\" y=\"%.03f\" width=\"%.03f\" height=\"%.03f\" />\n",

"rgb(64,64,64)",

time_to_graph(sampletime[i - 1] - graph_start),

kb_to_graph(1000000.0 - top),

time_to_graph(sampletime[i] - sampletime[i - 1]),

kb_to_graph(top - bottom));

bottom = top;

/* now plot the ones that are of significant size */

ps = ps_first;

while (ps->next_ps) {

ps = ps->next_ps;

if (!ps)

continue;

/* don't draw anything smaller than 2mb */

if (ps->sample[i].pss > (100 * arg_scale_y)) {

top = bottom + ps->sample[i].pss;

svg(" <rect class=\"clrw\" style=\"fill: %s\" x=\"%.03f\" y=\"%.03f\" width=\"%.03f\" height=\"%.03f\" />\n",

colorwheel[ps->pid % 12],

time_to_graph(sampletime[i - 1] - graph_start),

kb_to_graph(1000000.0 - top),

time_to_graph(sampletime[i] - sampletime[i - 1]),

kb_to_graph(top - bottom));

bottom = top;

}

}

}

/* overlay all the text labels */

for (i = 1; i < samples ; i++) {

int bottom;

int top;

bottom = 0;

top = 0;

/* put all the small pss blocks into the bottom */

ps = ps_first;

while (ps->next_ps) {

ps = ps->next_ps;

if (!ps)

continue;

if (ps->sample[i].pss <= (100 * arg_scale_y))

top += ps->sample[i].pss;

};

bottom = top;

/* now plot the ones that are of significant size */

ps = ps_first;

while (ps->next_ps) {

ps = ps->next_ps;

if (!ps)

continue;

/* don't draw anything smaller than 2mb */

if (ps->sample[i].pss > (100 * arg_scale_y)) {

top = bottom + ps->sample[i].pss;

/* draw a label with the process / PID */

if ((i == 1) || (ps->sample[i - 1].pss <= (100 * arg_scale_y)))

svg(" <text x=\"%.03f\" y=\"%.03f\"><![CDATA[%s]]> [%i]</text>\n",

time_to_graph(sampletime[i] - graph_start),

kb_to_graph(1000000.0 - bottom - ((top - bottom) / 2)),

ps->name,

ps->pid);

bottom = top;

}

}

}

/* debug output - full data dump */

svg("\n\n<!-- PSS map - csv format -->\n");

ps = ps_first;

while (ps->next_ps) {

char _cleanup_free_ *enc_name = NULL;

ps = ps->next_ps;

if (!ps)

continue;

enc_name = xml_comment_encode(ps->name);

if(!enc_name)

continue;

svg("<!-- %s [%d] pss=", enc_name, ps->pid);

for (i = 0; i < samples ; i++) {

svg("%d," , ps->sample[i].pss);

}

svg(" -->\n");

}

}

static void svg_io_bi_bar(void) {

double max = 0.0;

double range;

int max_here = 0;

int i;

svg("<!-- IO utilization graph - In -->\n");

svg("<text class=\"t2\" x=\"5\" y=\"-15\">IO utilization - read</text>\n");

/*

range = 0.25 / (1.0 / arg_hz);

if (range < 2.0)

range = 2.0; /* no smoothing */

/* surrounding box */

svg_graph_box(5);

/* find the max IO first */

for (i = 1; i < samples; i++) {

int start;

int stop;

double tot;

start = MAX(i - ((range / 2) - 1), 0);

stop = MIN(i + (range / 2), samples - 1);

tot = (double)(blockstat[stop].bi - blockstat[start].bi)

/ (stop - start);

if (tot > max) {

max = tot;

max_here = i;

}

tot = (double)(blockstat[stop].bo - blockstat[start].bo)

/ (stop - start);

if (tot > max)

max = tot;

}

/* plot bi */

for (i = 1; i < samples; i++) {

int start;

int stop;

double tot;

double pbi;

start = MAX(i - ((range / 2) - 1), 0);

stop = MIN(i + (range / 2), samples);

tot = (double)(blockstat[stop].bi - blockstat[start].bi)

/ (stop - start);

pbi = tot / max;

if (pbi > 0.001)

svg("<rect class=\"bi\" x=\"%.03f\" y=\"%.03f\" width=\"%.03f\" height=\"%.03f\" />\n",

time_to_graph(sampletime[i - 1] - graph_start),

(arg_scale_y * 5) - (pbi * (arg_scale_y * 5)),

time_to_graph(sampletime[i] - sampletime[i - 1]),

pbi * (arg_scale_y * 5));

/* labels around highest value */

if (i == max_here) {

svg(" <text class=\"sec\" x=\"%.03f\" y=\"%.03f\">%0.2fmb/sec</text>\n",

time_to_graph(sampletime[i] - graph_start) + 5,

((arg_scale_y * 5) - (pbi * (arg_scale_y * 5))) + 15,

max / 1024.0 / (interval / 1000000000.0));

}

}

}

static void svg_io_bo_bar(void) {

double max = 0.0;

double range;

int max_here = 0;

int i;

svg("<!-- IO utilization graph - out -->\n");

svg("<text class=\"t2\" x=\"5\" y=\"-15\">IO utilization - write</text>\n");

/*

range = 0.25 / (1.0 / arg_hz);

if (range < 2.0)

range = 2.0; /* no smoothing */

/* surrounding box */

svg_graph_box(5);

/* find the max IO first */

for (i = 1; i < samples; i++) {

int start;

int stop;

double tot;

start = MAX(i - ((range / 2) - 1), 0);

stop = MIN(i + (range / 2), samples - 1);

tot = (double)(blockstat[stop].bi - blockstat[start].bi)

/ (stop - start);

if (tot > max)

max = tot;

tot = (double)(blockstat[stop].bo - blockstat[start].bo)

/ (stop - start);

if (tot > max) {

max = tot;

max_here = i;

}

}

/* plot bo */

for (i = 1; i < samples; i++) {

int start;

int stop;

double tot;

double pbo;

start = MAX(i - ((range / 2) - 1), 0);

stop = MIN(i + (range / 2), samples);

tot = (double)(blockstat[stop].bo - blockstat[start].bo)

/ (stop - start);

pbo = tot / max;

if (pbo > 0.001)

svg("<rect class=\"bo\" x=\"%.03f\" y=\"%.03f\" width=\"%.03f\" height=\"%.03f\" />\n",

time_to_graph(sampletime[i - 1] - graph_start),

(arg_scale_y * 5) - (pbo * (arg_scale_y * 5)),

time_to_graph(sampletime[i] - sampletime[i - 1]),

pbo * (arg_scale_y * 5));

/* labels around highest bo value */

if (i == max_here) {

svg(" <text class=\"sec\" x=\"%.03f\" y=\"%.03f\">%0.2fmb/sec</text>\n",

time_to_graph(sampletime[i] - graph_start) + 5,

((arg_scale_y * 5) - (pbo * (arg_scale_y * 5))),

max / 1024.0 / (interval / 1000000000.0));

}

}

}

static void svg_cpu_bar(void) {

int i;

svg("<!-- CPU utilization graph -->\n");

svg("<text class=\"t2\" x=\"5\" y=\"-15\">CPU utilization</text>\n");

/* surrounding box */

svg_graph_box(5);

/* bars for each sample, proportional to the CPU util. */

for (i = 1; i < samples; i++) {

int c;

double trt;

double ptrt;

ptrt = trt = 0.0;

for (c = 0; c < cpus; c++)

trt += cpustat[c].sample[i].runtime - cpustat[c].sample[i - 1].runtime;

trt = trt / 1000000000.0;

trt = trt / (double)cpus;

if (trt > 0.0)

ptrt = trt / (sampletime[i] - sampletime[i - 1]);

if (ptrt > 1.0)

ptrt = 1.0;

if (ptrt > 0.001) {

svg("<rect class=\"cpu\" x=\"%.03f\" y=\"%.03f\" width=\"%.03f\" height=\"%.03f\" />\n",

time_to_graph(sampletime[i - 1] - graph_start),

(arg_scale_y * 5) - (ptrt * (arg_scale_y * 5)),

time_to_graph(sampletime[i] - sampletime[i - 1]),

ptrt * (arg_scale_y * 5));

}

}

}

static void svg_wait_bar(void) {

int i;

svg("<!-- Wait time aggregation box -->\n");

svg("<text class=\"t2\" x=\"5\" y=\"-15\">CPU wait</text>\n");

/* surrounding box */

svg_graph_box(5);

/* bars for each sample, proportional to the CPU util. */

for (i = 1; i < samples; i++) {

int c;

double twt;

double ptwt;

ptwt = twt = 0.0;

for (c = 0; c < cpus; c++)

twt += cpustat[c].sample[i].waittime - cpustat[c].sample[i - 1].waittime;

twt = twt / 1000000000.0;

twt = twt / (double)cpus;

if (twt > 0.0)

ptwt = twt / (sampletime[i] - sampletime[i - 1]);

if (ptwt > 1.0)

ptwt = 1.0;

if (ptwt > 0.001) {

svg("<rect class=\"wait\" x=\"%.03f\" y=\"%.03f\" width=\"%.03f\" height=\"%.03f\" />\n",

time_to_graph(sampletime[i - 1] - graph_start),

((arg_scale_y * 5) - (ptwt * (arg_scale_y * 5))),

time_to_graph(sampletime[i] - sampletime[i - 1]),

ptwt * (arg_scale_y * 5));

}

}

}

static void svg_entropy_bar(void) {

int i;

svg("<!-- entropy pool graph -->\n");

svg("<text class=\"t2\" x=\"5\" y=\"-15\">Entropy pool size</text>\n");

/* surrounding box */

svg_graph_box(5);

/* bars for each sample, scale 0-4096 */

for (i = 1; i < samples; i++) {

/* svg("<!-- entropy %.03f %i -->\n", sampletime[i], entropy_avail[i]); */

svg("<rect class=\"cpu\" x=\"%.03f\" y=\"%.03f\" width=\"%.03f\" height=\"%.03f\" />\n",

time_to_graph(sampletime[i - 1] - graph_start),

((arg_scale_y * 5) - ((entropy_avail[i] / 4096.) * (arg_scale_y * 5))),

time_to_graph(sampletime[i] - sampletime[i - 1]),

(entropy_avail[i] / 4096.) * (arg_scale_y * 5));

}

}

static struct ps_struct *get_next_ps(struct ps_struct *ps) {

/*

if (ps == ps_first)

return ps->next_ps;

/* go deep */

if (ps->children)

return ps->children;

/* find siblings */

if (ps->next)

return ps->next;

/* go back for parent siblings */

while (1) {

if (ps->parent)

if (ps->parent->next)

return ps->parent->next;

ps = ps->parent;

if (!ps)

return ps;

}

return NULL;

}

static int ps_filter(struct ps_struct *ps) {

if (!arg_filter)

return 0;

/* can't draw data when there is only 1 sample (need start + stop) */

if (ps->first == ps->last)

return -1;

/* don't filter kthreadd */

if (ps->pid == 2)

return 0;

/* drop stuff that doesn't use any real CPU time */

if (ps->total <= 0.001)

return -1;

return 0;

}

static void svg_do_initcall(int count_only) {

FILE _cleanup_pclose_ *f = NULL;

double t;

char func[256];

int ret;

int usecs;

/* can't plot initcall when disabled or in relative mode */

if (!initcall || arg_relative) {

kcount = 0;

return;

}

if (!count_only) {

svg("<!-- initcall -->\n");

svg("<text class=\"t2\" x=\"5\" y=\"-15\">Kernel init threads</text>\n");

/* surrounding box */

svg_graph_box(kcount);

}

kcount = 0;

/*

f = popen("dmesg", "r");

if (!f)

return;

while (!feof(f)) {

int c;

int z = 0;

char l[256];

if (fgets(l, sizeof(l) - 1, f) == NULL)

continue;

c = sscanf(l, "[%lf] initcall %s %*s %d %*s %d %*s",

&t, func, &ret, &usecs);

if (c != 4) {

/* also parse initcalls done by module loading */

c = sscanf(l, "[%lf] initcall %s %*s %*s %d %*s %d %*s",

&t, func, &ret, &usecs);

if (c != 4)

continue;

}

/* chop the +0xXX/0xXX stuff */

while(func[z] != '+')

z++;

func[z] = 0;

if (count_only) {

/* filter out irrelevant stuff */

if (usecs >= 1000)

kcount++;

continue;

}

svg("<!-- thread=\"%s\" time=\"%.3f\" elapsed=\"%d\" result=\"%d\" -->\n",

func, t, usecs, ret);

if (usecs < 1000)

continue;

/* rect */

svg(" <rect class=\"krnl\" x=\"%.03f\" y=\"%.03f\" width=\"%.03f\" height=\"%.03f\" />\n",

time_to_graph(t - (usecs / 1000000.0)),

ps_to_graph(kcount),

time_to_graph(usecs / 1000000.0),

ps_to_graph(1));

/* label */

svg(" <text x=\"%.03f\" y=\"%.03f\">%s <tspan class=\"run\">%.03fs</tspan></text>\n",

time_to_graph(t - (usecs / 1000000.0)) + 5,

ps_to_graph(kcount) + 15,

func,

usecs / 1000000.0);

kcount++;

}

}

static void svg_ps_bars(void) {

struct ps_struct *ps;

int i = 0;

int j = 0;

int w;

int pid;

svg("<!-- Process graph -->\n");

svg("<text class=\"t2\" x=\"5\" y=\"-15\">Processes</text>\n");

/* surrounding box */

svg_graph_box(pcount);

/* pass 2 - ps boxes */

ps = ps_first;

while ((ps = get_next_ps(ps))) {

char _cleanup_free_ *enc_name = NULL;

double starttime;

int t;

enc_name = xml_comment_encode(ps->name);

if(!enc_name)

continue;

/* leave some trace of what we actually filtered etc. */

svg("<!-- %s [%i] ppid=%i runtime=%.03fs -->\n", enc_name, ps->pid,

ps->ppid, ps->total);

/* it would be nice if we could use exec_start from /proc/pid/sched,

starttime = sampletime[ps->first];

if (!ps_filter(ps)) {

/* remember where _to_ our children need to draw a line */

ps->pos_x = time_to_graph(starttime - graph_start);

ps->pos_y = ps_to_graph(j+1); /* bottom left corner */

} else {

/* hook children to our parent coords instead */

ps->pos_x = ps->parent->pos_x;

ps->pos_y = ps->parent->pos_y;

/* if this is the last child, we might still need to draw a connecting line */

if ((!ps->next) && (ps->parent))

svg(" <line class=\"dot\" x1=\"%.03f\" y1=\"%.03f\" x2=\"%.03f\" y2=\"%.03f\" />\n",

ps->parent->pos_x,

ps_to_graph(j-1) + 10.0, /* whee, use the last value here */

ps->parent->pos_x,

ps->parent->pos_y);

continue;

}

svg(" <rect class=\"ps\" x=\"%.03f\" y=\"%.03f\" width=\"%.03f\" height=\"%.03f\" />\n",

time_to_graph(starttime - graph_start),

ps_to_graph(j),

time_to_graph(sampletime[ps->last] - starttime),

ps_to_graph(1));

/* paint cpu load over these */

for (t = ps->first + 1; t < ps->last; t++) {

double rt, prt;

double wt, wrt;

/* calculate over interval */

rt = ps->sample[t].runtime - ps->sample[t-1].runtime;

wt = ps->sample[t].waittime - ps->sample[t-1].waittime;

prt = (rt / 1000000000) / (sampletime[t] - sampletime[t-1]);

wrt = (wt / 1000000000) / (sampletime[t] - sampletime[t-1]);

/* this can happen if timekeeping isn't accurate enough */

if (prt > 1.0)

prt = 1.0;

if (wrt > 1.0)

wrt = 1.0;

if ((prt < 0.1) && (wrt < 0.1)) /* =~ 26 (color threshold) */

continue;

svg(" <rect class=\"wait\" x=\"%.03f\" y=\"%.03f\" width=\"%.03f\" height=\"%.03f\" />\n",

time_to_graph(sampletime[t - 1] - graph_start),

ps_to_graph(j),

time_to_graph(sampletime[t] - sampletime[t - 1]),

ps_to_graph(wrt));

/* draw cpu over wait - TODO figure out how/why run + wait > interval */

svg(" <rect class=\"cpu\" x=\"%.03f\" y=\"%.03f\" width=\"%.03f\" height=\"%.03f\" />\n",

time_to_graph(sampletime[t - 1] - graph_start),

ps_to_graph(j + (1.0 - prt)),

time_to_graph(sampletime[t] - sampletime[t - 1]),

ps_to_graph(prt));

}

/* determine where to display the process name */

if (sampletime[ps->last] - sampletime[ps->first] < 1.5)

/* too small to fit label inside the box */

w = ps->last;

else

w = ps->first;

/* text label of process name */

svg(" <text x=\"%.03f\" y=\"%.03f\"><![CDATA[%s]]> [%i]<tspan class=\"run\">%.03fs</tspan></text>\n",

time_to_graph(sampletime[w] - graph_start) + 5.0,

ps_to_graph(j) + 14.0,

ps->name,

ps->pid,

(ps->sample[ps->last].runtime - ps->sample[ps->first].runtime) / 1000000000.0);

/* paint lines to the parent process */

if (ps->parent) {

/* horizontal part */

svg(" <line class=\"dot\" x1=\"%.03f\" y1=\"%.03f\" x2=\"%.03f\" y2=\"%.03f\" />\n",

time_to_graph(starttime - graph_start),

ps_to_graph(j) + 10.0,

ps->parent->pos_x,

ps_to_graph(j) + 10.0);

/* one vertical line connecting all the horizontal ones up */

if (!ps->next)

svg(" <line class=\"dot\" x1=\"%.03f\" y1=\"%.03f\" x2=\"%.03f\" y2=\"%.03f\" />\n",

ps->parent->pos_x,

ps_to_graph(j) + 10.0,

ps->parent->pos_x,

ps->parent->pos_y);

}

j++; /* count boxes */

svg("\n");

}

/* last pass - determine when idle */

pid = getpid();

/* make sure we start counting from the point where we actually have

ps = ps_first;

while (ps->next_ps) {

ps = ps->next_ps;

if (ps->pid == pid)

break;

}

for (i = ps->first; i < samples - (arg_hz / 2); i++) {

double crt;

double brt;

int c;

/* subtract bootchart cpu utilization from total */

crt = 0.0;

for (c = 0; c < cpus; c++)

crt += cpustat[c].sample[i + ((int)arg_hz / 2)].runtime - cpustat[c].sample[i].runtime;

brt = ps->sample[i + ((int)arg_hz / 2)].runtime - ps->sample[i].runtime;

/*

if ((crt - brt) < (interval / 2.0)) {

idletime = sampletime[i] - graph_start;

svg("\n<!-- idle detected at %.03f seconds -->\n",

idletime);

svg("<line class=\"idle\" x1=\"%.03f\" y1=\"%.03f\" x2=\"%.03f\" y2=\"%.03f\" />\n",

time_to_graph(idletime),

-arg_scale_y,

time_to_graph(idletime),

ps_to_graph(pcount) + arg_scale_y);

svg("<text class=\"idle\" x=\"%.03f\" y=\"%.03f\">%.01fs</text>\n",

time_to_graph(idletime) + 5.0,

ps_to_graph(pcount) + arg_scale_y,

idletime);

break;

}

}

}

static void svg_top_ten_cpu(void) {

struct ps_struct *top[10];

struct ps_struct emptyps = {};

struct ps_struct *ps;

int n, m;

for (n = 0; n < (int) ELEMENTSOF(top); n++)

top[n] = &emptyps;

/* walk all ps's and setup ptrs */

ps = ps_first;

while ((ps = get_next_ps(ps))) {

for (n = 0; n < 10; n++) {

if (ps->total <= top[n]->total)

continue;

/* cascade insert */

for (m = 9; m > n; m--)

top[m] = top[m-1];

top[n] = ps;

break;

}

}

svg("<text class=\"t2\" x=\"20\" y=\"0\">Top CPU consumers:</text>\n");

for (n = 0; n < 10; n++)

svg("<text class=\"t3\" x=\"20\" y=\"%d\">%3.03fs - <![CDATA[%s]]> [%d]</text>\n",

20 + (n * 13),

top[n]->total,

top[n]->name,

top[n]->pid);

}

static void svg_top_ten_pss(void) {

struct ps_struct *top[10];

struct ps_struct emptyps = {};

struct ps_struct *ps;

int n, m;

for (n = 0; n < (int) ELEMENTSOF(top); n++)

top[n] = &emptyps;

/* walk all ps's and setup ptrs */

ps = ps_first;

while ((ps = get_next_ps(ps))) {

for (n = 0; n < 10; n++) {

if (ps->pss_max <= top[n]->pss_max)

continue;

/* cascade insert */

for (m = 9; m > n; m--)

top[m] = top[m-1];

top[n] = ps;

break;

}

}

svg("<text class=\"t2\" x=\"20\" y=\"0\">Top PSS consumers:</text>\n");

for (n = 0; n < 10; n++)

svg("<text class=\"t3\" x=\"20\" y=\"%d\">%dK - <![CDATA[%s]]> [%d]</text>\n",

20 + (n * 13),

top[n]->pss_max,

top[n]->name,

top[n]->pid);

}

void svg_do(const char *build) {

struct ps_struct *ps;

memset(&str, 0, sizeof(str));

ps = ps_first;

/* count initcall thread count first */

svg_do_initcall(1);

ksize = (kcount ? ps_to_graph(kcount) + (arg_scale_y * 2) : 0);

/* then count processes */

while ((ps = get_next_ps(ps))) {

if (!ps_filter(ps))

pcount++;

else

pfiltered++;

}

psize = ps_to_graph(pcount) + (arg_scale_y * 2);

esize = (arg_entropy ? arg_scale_y * 7 : 0);

/* after this, we can draw the header with proper sizing */

svg_header();

svg("<g transform=\"translate(10,400)\">\n");

svg_io_bi_bar();

svg("</g>\n\n");

svg("<g transform=\"translate(10,%.03f)\">\n", 400.0 + (arg_scale_y * 7.0));

svg_io_bo_bar();

svg("</g>\n\n");

svg("<g transform=\"translate(10,%.03f)\">\n", 400.0 + (arg_scale_y * 14.0));

svg_cpu_bar();

svg("</g>\n\n");

svg("<g transform=\"translate(10,%.03f)\">\n", 400.0 + (arg_scale_y * 21.0));

svg_wait_bar();

svg("</g>\n\n");

if (kcount) {

svg("<g transform=\"translate(10,%.03f)\">\n", 400.0 + (arg_scale_y * 28.0));

svg_do_initcall(0);

svg("</g>\n\n");

}

svg("<g transform=\"translate(10,%.03f)\">\n", 400.0 + (arg_scale_y * 28.0) + ksize);

svg_ps_bars();

svg("</g>\n\n");

svg("<g transform=\"translate(10, 0)\">\n");

svg_title(build);

svg("</g>\n\n");

svg("<g transform=\"translate(10,200)\">\n");

svg_top_ten_cpu();

svg("</g>\n\n");

if (arg_entropy) {

svg("<g transform=\"translate(10,%.03f)\">\n", 400.0 + (arg_scale_y * 28.0) + ksize + psize);

svg_entropy_bar();

svg("</g>\n\n");

}

if (arg_pss) {

svg("<g transform=\"translate(10,%.03f)\">\n", 400.0 + (arg_scale_y * 28.0) + ksize + psize + esize);

svg_pss_graph();

svg("</g>\n\n");

svg("<g transform=\"translate(410,200)\">\n");

svg_top_ten_pss();

svg("</g>\n\n");

}

/* svg footer */

svg("\n</svg>\n");

}