pthread和curl之间的PHP测试 [英] PHP testing between pthreads and curl
问题描述
我们正计划制作实时出价,我们正在评估 PHP
的性能,与 Java
相比吞吐量/响应时间等。
(Java部分由团队的其他成员负责)
We are planning to building real time bidding and we are evaluating performance of PHP
compare to Java
in terms of throughput/response times etc.
(Java part is taken care by other member of team)
我有一个测试脚本,可将50个http连接到不同的服务器。
I have a test script which makes 50 http connection to different servers.
>第一种方法
- 我使用 curl_multi_init
函数,我在7秒内得到响应。
1st approach
- I am using curl_multi_init
function and I get response under 7 seconds.
第二种方法
- 我使用 PHP
pthreads api
尝试进行并行调用,并期待相同的响应时间或更少。但平均总时间约为25秒
2nd approach
- I am using PHP
pthreads api
and trying to make parallel calls and expecting same response time or less.But total time on average is around 25 seconds
以下是代码
<?php
$g_request_arr = array(
'0' => array(
'request_url' => 'https://www.google.co.uk/?#q=56%2B12'
),
..
..
..
'49'=>array(
'request_url' => 'https://www.google.co.uk/?#q=256%2B132'
)
);
class ChildThread extends Thread {
public function __construct($urls) {
$this->data = $urls;
}
public function run(){
foreach($this->data as $url_info ){
$url = $url_info['request_url'];
file_get_contents($url);
}
$this->synchronized(function($thread){
$thread->notify();
}, $this);
}
}
$thread = new ChildThread($g_request_arr);
$thread->start();
$thread->synchronized(function($thread){
}, $thread);
?>
我想知道上面的代码中缺少什么,或者可以将响应时间设置为7秒。
I want to know what is missing in above code or is it possible to bring the response under 7 seconds.
推荐答案
您在一个线程中请求所有数据,这里有一个更好的方法:
You are requesting all the data in one thread, here's a better approach:
<?php
class WebRequest extends Stackable {
public $request_url;
public $response_body;
public function __construct($request_url) {
$this->request_url = $request_url;
}
public function run(){
$this->response_body = file_get_contents(
$this->request_url);
}
}
class WebWorker extends Worker {
public function run(){}
}
$list = array(
new WebRequest("http://google.com"),
new WebRequest("http://www.php.net")
);
$max = 8;
$threads = array();
$start = microtime(true);
/* start some workers */
while (@$thread++<$max) {
$threads[$thread] = new WebWorker();
$threads[$thread]->start();
}
/* stack the jobs onto workers */
foreach ($list as $job) {
$threads[array_rand($threads)]->stack(
$job);
}
/* wait for completion */
foreach ($threads as $thread) {
$thread->shutdown();
}
$time = microtime(true) - $start;
/* tell you all about it */
printf("Fetched %d responses in %.3f seconds\n", count($list), $time);
$length = 0;
foreach ($list as $listed) {
$length += strlen($listed["response_body"]);
}
printf("Total of %d bytes\n", $length);
?>
这使用多个工作者,您可以通过更改$ max来调整。如果您有1000个要处理的请求,创建1000个主题没有多少意义。
This uses multiple workers, which you can adjust by changing $max. There's not much point in creating 1000 threads if you have 1000 requests to process.
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