[英]PHP Multicurl high cpu usage
在我的1個vCPU VPS上以70 url運行此代碼並且cpu跳到100%,這是正常的嗎?
VPS - (LAMP) - PHP版本7.0.25,Intel Xeon CPU E5-2650 @ 2.00GHz
$curl_arr = array();
$master = curl_multi_init();
for($i = 0; $i < count($urls); $i++)
{
$random = rand(1,9999);
$link = trim($urls[$i]);
$link = $link."?".$random;
$url = trim($link);
$curl_arr[$i] = curl_init($url);
curl_setopt($curl_arr[$i], CURLOPT_RETURNTRANSFER, true);
curl_setopt($curl_arr[$i], CURLOPT_FRESH_CONNECT, TRUE);
curl_setopt($curl_arr[$i], CURLOPT_USERAGENT, 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.132 Safari/537.36');
curl_setopt($curl_arr[$i], CURLOPT_HTTPHEADER, $headers);
curl_setopt($curl_arr[$i], CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($curl_arr[$i], CURLOPT_SSL_VERIFYHOST, false);
curl_setopt($curl_arr[$i], CURLOPT_ENCODING , "gzip");
curl_setopt($curl_arr[$i], CURLOPT_IPRESOLVE, CURL_IPRESOLVE_V4 );
curl_multi_add_handle($master, $curl_arr[$i]);
}
do
{
curl_multi_exec($master,$running);
}
while($running > 0);
是的,因為在您再次調用curl_multi_exec()
之前沒有使用curl_multi_select()
等待活動時,這正是您所要求的...
這個簡單的改變應該可以更好地工作:
do {
curl_multi_select($master);
curl_multi_exec($master, $running);
} while ($running);
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