}
// now we loop on each config
// and take stats on the distribution
// and data movement
$configs = makeConfigs(1, 39);
$totalConfs = count($configs);
$timings = array();
require_once 'PHPDFS/DataLocator/HonickyMillerR.php';
for ($n = 0; $n < $totalConfs; $n++) {
echo "processing conf {$n} with " . count($configs[$n]['clusters']) . " clusters.\n";
$totalTime = 0;
$hm = new PHPDFS_DataLocator_HonickyMillerR($configs[$n]);
foreach ($objs as $objId => $obj) {
$objKey = $obj['objKey'];
$time = microtime(1);
$hm->findNode($objKey);
$time2 = microtime(1);
$totalTime += $time2 - $time;
}
$timings[$n] = $totalTime / $totalObjs;
echo "avgtime:" . $timings[$n] . "\n";
}
print_r($timings);
function makeConfigs($numConfigs = 1, $subClusters = 1)
{
$configs = array();
$replicationDegree = 3;
for ($num = 0; $num < $numConfigs; $num++) {
$configs[$num] = array('replicationDegree' => $replicationDegree, 'clusters' => array());
$weight = 1;
$disk = 1;
// track replica distribution
// for a failed disk
foreach ($disks as $diskNo) {
if ($diskNo != $disk) {
if (!isset($confStats['stats']['failed'][$diskNo])) {
$confStats['stats']['failed'][$diskNo] = 0;
}
$confStats['stats']['failed'][$diskNo]++;
}
}
}
// figure out if this object is being moved
// something can only be moved if the curr config is greater than 0
$prevDisk = null;
if ($currConfig > 0) {
$prevDisk = $hmPrev->findNode($objKey, $replica);
if ($prevDisk == $disk) {
$prevDisk = null;
}
}
// now set the stats for the buckets
if (!isset($confStats['stats']['dist'][$disk])) {
$confStats['stats']['dist'][$disk] = 0;
}
$confStats['stats']['dist'][$disk]++;
if ($prevDisk !== null) {
if (!isset($confStats['stats']['moved']['from'][$prevDisk])) {
$confStats['stats']['moved']['from'][$prevDisk] = 0;
}
$confStats['stats']['moved']['from'][$prevDisk]++;
if (!isset($confStats['stats']['moved']['to'][$disk])) {