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121 lines
3.8 KiB
121 lines
3.8 KiB
3 years ago
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<?php
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function detect()
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{
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/**
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* ----------负载计算开始----------
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*/
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$laodavg = shell_exec("cat /proc/loadavg | awk '{print $1,$2,$3}'");
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$laodavgArray = explode(' ', $laodavg);
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//获取CPU15分钟前到现在的负载平均值
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$cpuLoad15Min = (float)trim($laodavgArray[2]);
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//获取CPU5分钟前到现在的负载平均值
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$cpuLoad5Min = (float)trim($laodavgArray[1]);
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//获取CPU1分钟前到现在的负载平均值
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$cpuLoad1Min = (float)trim($laodavgArray[0]);
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//获取cpu总核数
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$cpuCount = shell_exec('grep -c "model name" /proc/cpuinfo');
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$cpuCount = (int)trim($cpuCount);
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//一分钟的平均负载 / (cpu总核数 * 2),超过100则为100 不超100为真实值取整
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$percent = round($cpuLoad1Min / ($cpuCount * 2) * 100, 1);
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if ($percent > 100) {
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$percent = 100;
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}
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/**
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* ----------负载计算结束----------
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*/
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$data['load'] = $percent;
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/**
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* ----------cpu计算开始----------
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*/
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/**
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* cpu使用率
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*
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* %Cpu(s): 0.0 us, 3.2 sy, 0.0 ni, 96.8 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 st
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*
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* us user CPU time 用户空间占用CPU百分比
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* sy system CPU time 内核空间占用CPU百分比
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* ni nice CPU 用户进程空间内改变过优先级的进程占用CPU百分比
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* id idle 空闲CPU百分比
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* wa iowait 等待输入输出的CPU时间百分比
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* hi hardware 硬件中断
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* si software 软件中断
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* st steal 实时
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*/
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$topResult = shell_exec('top -b -n 1 | grep Cpu');
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preg_match('/ni,(.*?)id/', $topResult, $matches);
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$id = 100 - (float)trim($matches[1]);
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//cpu型号
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$cpuModelArray = [];
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$cpuModelName = shell_exec("cat /proc/cpuinfo | grep 'model name' | uniq");
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$explodeArray = explode("\n", trim($cpuModelName));
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foreach ($explodeArray as $value) {
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if (trim($value) != '') {
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$tempArray = explode(':', $value);
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array_push($cpuModelArray, trim($tempArray[1]));
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}
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}
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//物理cpu个数
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$cpuPhysical = shell_exec("cat /proc/cpuinfo | grep 'physical id' | sort -u | wc -l");
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$cpuPhysical = (int)trim($cpuPhysical);
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//每个物理cpu的物理核心数
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$cpuPhysicalCore = shell_exec("cat /proc/cpuinfo | grep 'cpu cores' | wc -l");
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$cpuPhysicalCore = (int)trim($cpuPhysicalCore);
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//总物理核心数 = 物理cpu个数 * 每个物理cpu的物理核心数(每个物理cpu的物理核心数都一样吗?)
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$cpuCore = $cpuPhysical * $cpuPhysicalCore;
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//逻辑核心总数(线程总数)
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$cpuProcessor = shell_exec("cat /proc/cpuinfo | grep 'processor' | wc -l");
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$cpuProcessor = (int)trim($cpuProcessor);
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/**
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* ----------cpu计算结束----------
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*/
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$data['cpu'] = round($id, 1);
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/**
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* ----------内存计算开始----------
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*/
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/**
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* MemTotal 总内存
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* MemFree 空闲内存
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* MemAvailable 可用内存(MemFree + 可回收的内存),系统中有些内存虽然已被使用但是可以回收,比如cache、buffer、slab都有一部分可以回收
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*/
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//物理内存总量
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$memTotal = shell_exec("cat /proc/meminfo | grep 'MemTotal' | awk '{print $2}'");
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$memTotal = (int)trim($memTotal);
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//操作系统可用内存总量(没有使用空闲内存)
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$memFree = shell_exec("cat /proc/meminfo | grep 'MemAvailable' | awk '{print $2}'");
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$memFree = (int)trim($memFree);
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//操作系统已使用内存总量
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$memUsed = $memTotal - $memFree;
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//内存使用率
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$percent = round($memUsed / $memTotal * 100, 1);
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/**
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* ----------内存计算结束----------
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*/
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$data['mem'] = $percent;
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print_r($data);
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}
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for (;;) {
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detect();
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sleep(1);
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}
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