private function parseCaches($line, $regexp)
{
$matches = NULL;
if (!preg_match_all("|{$regexp}\\((\\d+)/(\\d+)/(\\d+)\\)|", $line, $matches)) {
return array(0, 0, 0);
}
$hits = array_sum($matches[1]);
$misses = array_sum($matches[2]);
$sets = array_sum($matches[3]);
return array($hits, $misses, $sets);
}