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#!/usr/bin/php
<?
//our margin of acceptable skews, in microseconds.
$margin = 5;
//hold our output_data
$size_data = array();
// foreach ($tick_sizes AS $tick_size)
for ($tick_size = 16; $tick_size<=100; $tick_size++)
{
for ($rpm=1; $rpm <= 500; $rpm++)
{
$delay = (60000000 / ($rpm * 400));
$ticks = $delay / $tick_size;
$loss = floor(abs(round($ticks) - $ticks) * $tick_size);
$real_rpm = round(60000000 / (round($ticks) * $tick_size * 400));
if ($loss <= $margin)
{
$size_data[$tick_size][$real_rpm] = 1;
echo "rpm: $rpm real rpm: $real_rpm ticks: $ticks loss: $loss\n";
}
}
}
echo "\n\ntick size data:\n";
arsort($size_data);
foreach ($size_data AS $tick_size => $data)
{
echo "$tick_size: " . array_sum($data) . "\n";
}
foreach ($size_data[75] AS $rpm => $key)
{
echo "rpm: $rpm\n";
}
?>
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