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<?php
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if($fp = @fopen('/proc/loadavg', 'r')) {
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list($loadaverage) = explode(' ', fread($fp, 6));
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echo 'loadaverage:';
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echo $loadaverage;
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fclose($fp);
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if($loadaverage > 2) {
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header("HTTP/1.0 503 Service Unavailable");
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echo 'server die ';
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exit();
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}
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}
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/**
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* 记录服务器负载、内存使用、cpu状态,交换分区
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* 每10秒检测一次<EFBFBD>
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*/
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//while(1){
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exec('top -b -n 1 -d 3',$out);
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$Cpu = explode(' ', $out[2]);
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$Mem = explode(' ', $out[3]);
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$Swap = explode(' ', $out[4]);
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//var_dump($Cpu,$Mem,$Swap);
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$cpu = str_replace(array('%us,',' '),'',$Cpu[1]);
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$mem = str_replace(array('k used,',' '),'',$Mem[2]);
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$swap = str_replace(array('k cached',' '),'',$Swap[5]);
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date_default_timezone_set('Asia/Shanghai');
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echo date(' y-m-d h:i:s').'CPU '.$cpu.' MEM'.intval($mem/1024).' SWAP'.intval($swap/1024).chr(10);
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// sleep(10);
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//}
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?>
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