How to optimize file writing speed

How to optimize the file writing speed? According to the calculated sub-database and table, the location of each file writing is different. If there are 1 million pieces of data, such file IO will slow down the program.
Look at the code and ask for optimization advice.

<code>$inputfile = "logs.txt";//输入日志文件，每字段以\t分隔，每行以\n结尾
$fp = fopen($inputfile,'r');
if(!is_resource($fp)){
    echo "打开文件".$inputfile."失败，分析日志程序终止";
    exit(1);
}
while(!feof($fp)){
    $row = fgets($fp,4096);
    str_replace(array("\r","\n"),array("",""),$row);//去除行中的换行符
    if($row == ''){
        continue;
    }
    $arrRec = explode("\t",$row);//将一行字符串以\t分隔为数组
    $accountid = $arrRec[6];//账户id
    //下面由文字说明
    /**
     * 根据一行中的$accountid,调用底层函数算出分库分表位置
     * 例如分库为groupid = 5
     * 分表名为table_0001
     */
    $groupid = 5;
    $tableid = "table_0001";
    //在此处拼接要写入的文件路径
    $outputfile = "tmp/".$groupid."/".$tableid;//这个值每读一行数据，根据accountid计算的的结果都会变

    $content = "\t".$arrRec[0]."\t".$accountid."\t".$groupid."\n";//拼接要写入文件的内容
    if(file_put_contents($outputfile,$content,FILE_APPEND))
    {
        $success++;
        $content = '';
    }
    else
    {
        $failure++;
    }
}
fclose($fp);</code>

Only one piece of data can be written at a time. It takes about 30 minutes to write 1 million pieces of data. The speed is very slow. How to optimize it; after testing, if the target file path remains unchanged, splice all the content to be written into a long string, and then After the while loop ends, the file_put_contents function is called once, and the speed of writing all the contents to the file at once is much faster; but the problem encountered now is that the target path of each write will change, please optimize it

Reply content:

How to optimize the file writing speed? According to the calculated sub-database and table, the location of each file writing is different. If there are 1 million pieces of data, such file IO will slow down the program.
Look at the code and ask for optimization advice.

<code>$inputfile = "logs.txt";//输入日志文件，每字段以\t分隔，每行以\n结尾
$fp = fopen($inputfile,'r');
if(!is_resource($fp)){
    echo "打开文件".$inputfile."失败，分析日志程序终止";
    exit(1);
}
while(!feof($fp)){
    $row = fgets($fp,4096);
    str_replace(array("\r","\n"),array("",""),$row);//去除行中的换行符
    if($row == ''){
        continue;
    }
    $arrRec = explode("\t",$row);//将一行字符串以\t分隔为数组
    $accountid = $arrRec[6];//账户id
    //下面由文字说明
    /**
     * 根据一行中的$accountid,调用底层函数算出分库分表位置
     * 例如分库为groupid = 5
     * 分表名为table_0001
     */
    $groupid = 5;
    $tableid = "table_0001";
    //在此处拼接要写入的文件路径
    $outputfile = "tmp/".$groupid."/".$tableid;//这个值每读一行数据，根据accountid计算的的结果都会变

    $content = "\t".$arrRec[0]."\t".$accountid."\t".$groupid."\n";//拼接要写入文件的内容
    if(file_put_contents($outputfile,$content,FILE_APPEND))
    {
        $success++;
        $content = '';
    }
    else
    {
        $failure++;
    }
}
fclose($fp);</code>

Only one piece of data can be written at a time. It takes about 30 minutes to write 1 million pieces of data. The speed is very slow. How to optimize it; after testing, if the target file path remains unchanged, splice all the content to be written into a long string, and then After the while loop ends, the file_put_contents function is called once, and the speed of writing all the contents to the file at once is much faster; but the problem encountered now is that the target path of each write will change, please optimize it

File writing speed basically has nothing to do with the program. . The bottleneck lies in hardware performance. .

Change to SSD solid state drive