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<?php |
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namespace Startwind\Inventorio\Metrics\Collector; |
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use Startwind\Inventorio\Exec\File; |
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use Startwind\Inventorio\Exec\Runner; |
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use Startwind\Inventorio\Exec\System; |
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use Startwind\Inventorio\Metrics\Memory\Memory; |
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class Collector |
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{ |
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private const MEMORY_KEY = 'net_traffic_history'; |
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public function collect(): array |
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{ |
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$runner = Runner::getInstance(); |
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$system = System::getInstance(); |
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$totalMem = (int)$runner->run("grep MemTotal /proc/meminfo | awk '{print $2}'")->getOutput(); |
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$freeMem = (int)$runner->run("grep MemAvailable /proc/meminfo | awk '{print $2}'")->getOutput(); |
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$usedMem = $totalMem - $freeMem; |
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$usedMemPercent = round(($usedMem / $totalMem) * 100, 2); |
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$loadAvg = (float)$system->getLoadAverage()[1]; |
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$cpuCores = (int)$runner->run("nproc")->getOutput(); |
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$cpuUsagePercent = ($cpuCores > 0) |
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? round(($loadAvg / $cpuCores) * 100, 1) |
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: 0; |
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$diskTotal = $system->getDiskTotalSpace('/'); |
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$diskFree = $system->getDiskFreeSpace('/'); |
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$diskUsedPercent = ($diskTotal > 0) |
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? round((($diskTotal - $diskFree) / $diskTotal) * 100, 1) |
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: 0; |
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return [ |
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'memory-usage' => $usedMemPercent, |
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'cpu-usage' => $cpuUsagePercent, |
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'disk-usage' => $diskUsedPercent, |
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'network-throughput-eth0' => $this->calculateNetworkThroughput('eth0') |
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]; |
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} |
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function calculateNetworkThroughput($interface): float |
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{ |
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$memory = Memory::getInstance(); |
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$file = new File(); |
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if (!$file->fileExists('/proc/net/dev')) return 0; |
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$lines = $file->getContents('/proc/net/dev', true); |
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foreach ($lines as $line) { |
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if (strpos($line, $interface . ':') !== false) { |
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$parts = preg_split('/\s+/', trim($line)); |
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$rx = (int)$parts[1]; |
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$tx = (int)$parts[9]; |
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$total = $rx + $tx; |
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break; |
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} |
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} |
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if (!isset($total)) return 0; |
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$history = $memory->getData(self::MEMORY_KEY) ?? []; |
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if (empty($history)) { |
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$lastTotal = 0; |
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} else { |
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$lastTotal = end($history); |
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} |
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if ($total < $lastTotal) { |
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$memory->addData(self::MEMORY_KEY, $total); |
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return $total; |
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} |
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$throughput = $total - $lastTotal; |
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$memory->addData(self::MEMORY_KEY, $total); |
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return $throughput; |
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} |
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} |
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startwind /
inventorio-command-line
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