• PHP多进程非阻塞模式下结合原生Mysql与单进程效率测试对比


    公司在做游戏服务器合并的时候,对大批量数据表做了合并操作,难免会出现数据格式不一致问题。根据玩家反映BUG排查,是因为某个模块下日志表出现了数据格式问题导致。

    目前想到的是有两种方案解决,第一种就是把所有的日志表数据修复;第二种就是把程序逻辑修改一下,保证查找格式正确。

    我的做法是想把所有数据修复一下,就从线上数据库拿了7000条数据在本地修改测试,保证无误再执行下一步计划。

    由于想到数据量会很大,我这里也顺便实验了一下多进程效率和单进程效率的对比。下面看下代码,有很多需要优化的地方....这里只是简单的案例....  两个数据表在最下面会分享链接测试.....

    多进程实例

    <?php
    //index.php
    $start_memory = memory_get_usage(); //开始内存 echo '开始内存:' . $start_memory . " "; $start_time = microtime(true); //获取程序开始执行的时间 $mysqli = new mysqli();//实例化mysqli $mysqli->connect('localhost','root','wt000000','up'); $all_uid_sql = 'select uid from zc_kapai_fashion_show_intensify_log group by uid'; $all_user_result = $mysqli->query($all_uid_sql); while (!!$_row = $all_user_result->fetch_assoc()) { $all_user[] = $_row['uid']; } //引入文件 require 'up_sql.php'; //count($all_user) = 84 $x_count = ceil(count($all_user)/10); //fork 9个进程 进程太多,可能会导致服务器系统资源耗尽而崩溃,所以必须控制进程数量 for($i = 0; $i < $x_count; ++$i) { $pids[$i] = pcntl_fork(); if($pids[$i] == -1) { die('fork error'); } else if ($pids[$i]) { //父进程逻辑 pcntl_wait($status, WNOHANG); } else { //子进程逻辑 $start = $i * 10; $tmp_users = array_splice($all_user, $start, 10); if (is_array($tmp_users) && !empty($tmp_users)) { up_sql($tmp_users) ; } exit; } } $all_user_result->free(); $mysqli->close();                    //别忘了关闭你的"小资源"; $end_time = microtime(true); //获取程序执行结束的时间 $run_time = ($end_time - $start_time) * 1000; //计算差值 毫秒 echo "[页面执行时间:{$run_time}]毫秒" . " "; $end_memory = memory_get_usage(); echo '运行后内存:'. $end_memory . " "; echo '使用的内存:' . ($end_memory - $start_memory) . " "; echo '回到正常内存:'.memory_get_usage();
    <?php
    //up_sql.php
    //修改语句的方法
    function up_sql ($temp_users = []) {
    
        $mysqli = new mysqli();//实例化mysqli
        $mysqli->connect('localhost','root','wt000000','up');
    
        foreach ($temp_users as $u) {
            $sql1 = 'select id,fid from zc_kapai_fashion_show_intensify_log where uid =' .$u;//创建一句SQL语句
            $sql2 = 'select id from zc_kapai_own_fashion_show where uid =' . $u;//创建一句SQL语句
    
            $result1=$mysqli->query($sql1);
            $result2=$mysqli->query($sql2);
    
            $log = [];
            $show = [];
            while (!!$_row = $result1->fetch_assoc()) {
                $log[] = $_row;
            }
            while (!!$_row = $result2->fetch_assoc()) {
                $show[] = $_row;
            }
            $test = $show[0]['id'];
            $return_arr = [];
            foreach ($log as $lv) {
                foreach ($show as $sv) {
                    $num = intval(substr((string)$sv['id'], 12, 4));  //show id  ,拿来对比log的fid
                    if ($num == $lv['fid'] ) {
                        $arr = [];
                        $log_len = strlen((string)$lv['fid']);
                        $cha = 16 - $log_len;
                        if (intval($cha) > 0) {
                            $tou = (string)(substr($test, 0, $cha));
                            $val = $tou. (string)$num;
                        }
                        $arr['id'] = $lv['id'];
                        $arr['to_val'] = $val;
                        $return_arr[] = $arr;
                    }
                }
            }
    
            foreach ($return_arr as $v) {
                $sql = 'update zc_kapai_fashion_show_intensify_log set fid = ' . $v['to_val'] . ' where id =' .$v['id'];
                $mysqli->query($sql);
            }
    
        }
        $result1->free();//释放查询内存(销毁)
        $result2->free();//释放查询内存(销毁)
        $mysqli->close();//别忘了关闭你的"小资源";
    }

    Linux下Cli模式运行index.php,查看结果

    # php index.php 
    开始内存:385520
    [页面执行时间:160.7940196991]毫秒
    运行后内存:399096
    使用的内存:13576
    回到正常内存:399096

    单进程实例

    <?php
    //index.php
    
    $start_memory = memory_get_usage();                   //开始内存
    echo '开始内存:' . $start_memory . "
    "; 
    $start_time = microtime(true);                         //获取程序开始执行的时间
    
    $mysqli=new mysqli();//实例化mysqli
    $mysqli->connect('localhost','root','wt000000','up');
    
    $all_uid_sql = 'select uid from zc_kapai_fashion_show_intensify_log group by uid';
    $all_user_result =$mysqli->query($all_uid_sql);
    
    while (!!$_row = $all_user_result->fetch_assoc()) {
        $all_user[] = $_row['uid'];
    }
    foreach ($all_user as $u) {
        $sql1='select id,fid from zc_kapai_fashion_show_intensify_log where uid =' .$u;
        $sql2='select id from zc_kapai_own_fashion_show where uid =' . $u;
    
        $result1=$mysqli->query($sql1);//执行sql语句把结果集赋给$result
        $result2=$mysqli->query($sql2);//执行sql语句把结果集赋给$result
    
    
        $log = [];
        $show = [];
        while (!!$_row = $result1->fetch_assoc()) {
            $log[] = $_row;
        }
         
        while (!!$_row = $result2->fetch_assoc()) {
            $show[] = $_row;
        }
        $test = $show[0]['id'];
        $return_arr = [];
        foreach ($log as $lv) {
            foreach ($show as $sv) {
                $num = intval(substr((string)$sv['id'], 12, 4));  //show id  ,拿来对比log的fid
                if ($num == $lv['fid'] ) {
                    $arr = [];
                    $log_len = strlen((string)$lv['fid']);
                    $cha = 16 - $log_len;
                    if (intval($cha) > 0) {
                        $tou = (string)(substr($test, 0, $cha));
                        $val = $tou. (string)$num;
                    }
                    $arr['id'] = $lv['id'];
                    $arr['to_val'] = $val;
                    $return_arr[] = $arr;
                }
            }
        }
    
        foreach ($return_arr as $v) {
            $sql = 'update zc_kapai_fashion_show_intensify_log set fid = ' . $v['to_val'] . ' where id =' .$v['id'];
    
            $mysqli->query($sql);
        }
    
    }
    
    $result1->free();                    //释放查询内存(销毁)
    $result2->free();                    //释放查询内存(销毁)
    $all_user_result->free();
    $mysqli->close();                    //别忘了关闭你的"小资源";
    
    $end_time = microtime(true);                        //获取程序执行结束的时间
    $run_time = ($end_time - $start_time) * 1000;       //计算差值 毫秒
    echo "[页面执行时间:{$run_time}]毫秒" . "
    "; 
    $end_memory = memory_get_usage();
    echo '运行后内存:'. $end_memory  . "
    "; 
      
    echo '使用的内存:' . ($end_memory - $start_memory)  . "
    "; 
    echo '回到正常内存:'.memory_get_usage(); 

    Linux下Cli模式运行index.php,查看结果

    # php index.php 
    开始内存:398768
    [页面执行时间:9905.3988456726]毫秒
    运行后内存:423736
    使用的内存:24968
    回到正常内存:423736

    测试结果明显对比,内存和执行时间....这里只是简单测试。

    两个数据表

    链接:https://pan.baidu.com/s/1ursYdiFB5wCbUf2mfBnWUA 密码:zhta
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  • 原文地址:https://www.cnblogs.com/wt645631686/p/9260028.html
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