mirror of https://github.com/BOINC/boinc.git
125 lines
3.5 KiB
PHP
125 lines
3.5 KiB
PHP
<?php
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// controller script for storage simulator
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//
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// usage: ssim.php infile
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//
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// format of infile
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// policy policy_file_1
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// ...
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// policy policy_file_n
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// host_life_mean x1 ... xn
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// connect_interval x
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// mean_xfer_rate x
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// output graphs:
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// infile_ft.png: fault tolerance level vs time
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// infile_du.png: disk usage vs time
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// infile_ub.png: upload BW vs time
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// infile_db.png: download BW vs time
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function parse_input_file($filename) {
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$x = null;
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$x->name = $filename;
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$x->policy = array();
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$x->policy_name = array();
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$f = fopen($filename, "r");
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if (!$f) die("no file $filename\n");
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while (($buf = fgets($f)) !== false) {
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$w = explode(" ", $buf);
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switch ($w[0]) {
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case "policy":
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$pfile = trim($w[1]);
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$x->policy[] = $pfile;
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$g = fopen($pfile, "r");
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$name = fgets($g);
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fclose($g);
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$x->policy_name[] = trim($name);
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break;
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case "host_life_mean":
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$x->host_life_mean = array();
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for ($i=1; $i<count($w); $i++) {
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$x->host_life_mean[] = 86400 * (double)($w[$i]);
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}
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break;
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case "connect_interval":
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$x->connect_interval = (double)($w[1]);
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break;
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case "mean_xfer_rate":
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$x->mean_xfer_rate = (double)($w[1]);
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break;
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case "file_size":
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$x->file_size = (double)($w[1]);
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break;
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}
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}
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fclose($f);
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return $x;
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}
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function make_graph($input, $prefix, $title, $index) {
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$gp_filename = $input->name."_$prefix.gp";
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$f = fopen($gp_filename, "w");
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fprintf($f, "set terminal png small size 1024, 768
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set yrange[0:]
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set ylabel \"$title\"
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set xlabel \"Mean host lifetime (days)\"
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plot ");
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$n = sizeof($input->policy);
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for ($i=0; $i<$n; $i++) {
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$p = $input->policy[$i];
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$pname = $input->policy_name[$i];
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$fname = $input->name."_$p.dat";
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fprintf($f, "\"$fname\" using 1:$index title \"$pname\" with lines");
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if ($i < $n-1) {
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fprintf($f, ", \\");
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}
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fprintf($f, "\n");
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}
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fclose($f);
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$png_filename = $input->name."_$prefix.png";
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$cmd = "gnuplot < $gp_filename > $png_filename";
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echo "$cmd\n";
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system($cmd);
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}
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function parse_output_file($fname) {
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$f = fopen($fname, "r");
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if (!$f) {
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die("no output file $fname\n");
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}
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$ft = (int)fgets($f);
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$du = (double)fgets($f);
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$ul = (double)fgets($f);
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$dl = (double)fgets($f);
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return array($ft, $du, $ul, $dl);
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}
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if ($argc != 2) {
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die("usage: ssim.php infile\n");
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}
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$input = parse_input_file($argv[1]);
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foreach ($input->policy as $p) {
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$datafile = fopen($input->name."_$p.dat", "w");
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if (!file_exists($p)) {
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die("no policy file '$p'\n");
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}
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foreach ($input->host_life_mean as $hlm) {
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$cmd = "ssim --policy $p --host_life_mean $hlm --connect_interval $input->connect_interval --mean_xfer_rate $input->mean_xfer_rate --file_size $input->file_size > /dev/null";
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echo "$cmd\n";
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system($cmd);
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list($ft, $du, $ub, $db) = parse_output_file("summary.txt");
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$hlmd = $hlm/86400;
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$du_rel = $du/$input->file_size;
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fprintf($datafile, "$hlmd $ft $du_rel $ub $db\n");
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}
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fclose($datafile);
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}
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make_graph($input, "ft", "Fault tolerance", 2);
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make_graph($input, "du", "Relative disk usage", 3);
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make_graph($input, "ub", "Upload bandwidth (Mbps)", 4);
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make_graph($input, "db", "Download bandwidth (Mbps)", 5);
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?>
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