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POcurl slow connect_time
 

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    <p>Consider this code in a php file on my VPS server:</p> <pre><code>&lt;?php $url = 'http://www.google.com'; $ch = curl_init(); curl_setopt($ch, CURLOPT_URL, $url); curl_setopt($ch, CURLOPT_USERAGENT, "Mozilla/5.0 (Windows; U; Windows NT 5.1; rv:1.7.3) Gecko/20041001 Firefox/0.10.1" ); curl_setopt($ch, CURLOPT_HEADER, 0); curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); $content = curl_exec($ch); $ci = curl_getinfo($ch); curl_close($ch); var_dump($ci); ?&gt; </code></pre> <p>returns this</p> <pre><code>array(22) { ["url"]=&gt; string(21) "http://www.google.com" ["content_type"]=&gt; string(24) "text/html; charset=UTF-8" ["http_code"]=&gt; int(200) ["header_size"]=&gt; int(2055) ["request_size"]=&gt; int(147) ["filetime"]=&gt; int(-1) ["ssl_verify_result"]=&gt; int(0) ["redirect_count"]=&gt; int(0) ["total_time"]=&gt; float(50.095466) ["namelookup_time"]=&gt; float(0.001114) ["connect_time"]=&gt; float(50.019724) ["pretransfer_time"]=&gt; float(50.019825) ["size_upload"]=&gt; float(0) ["size_download"]=&gt; float(23156) ["speed_download"]=&gt; float(462) ["speed_upload"]=&gt; float(0) ["download_content_length"]=&gt; float(-1) ["upload_content_length"]=&gt; float(0) ["starttransfer_time"]=&gt; float(50.070702) ["redirect_time"]=&gt; float(0) ["certinfo"]=&gt; array(0) { } ["redirect_url"]=&gt; string(0) "" } </code></pre> <p>After testing at several times of day, the "connect_time" is consistently at the 50 seconds mark. I believe it should be 10X faster if not at the 1 second mark and below.</p> <p>I'm not knowledgeable with server config but I was told that my server's CPU or RAM could be at fault. I used the top command line to display the following which seems fine to me:</p> <blockquote> <p>Tasks: 80 total, 1 running, 79 sleeping, 0 stopped, 0 zombie</p> <p>Cpu(s): 0.0%us, 0.0%sy, 0.0%ni,100.0%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st</p> <p>Mem: 2097152k total, 1273128k used, 824024k free, 0k buffers</p> <p>Swap: 0k total, 0k used, 0k free, 0k cached</p> </blockquote> <p>I am wondering what could be the source of this issue ?</p> <p>EDIT: ADDITIONAL INFORMATION</p> <p>ping www.google.com result. It seemed like it could go on foreover so I stopped the command after the 195th line</p> <blockquote> <p>PING www.l.google.com (74.125.224.178) 56(84) bytes of data.</p> <p>64 bytes from lax02s01-in-f18.1e100.net (74.125.224.178): icmp_seq=1 ttl=56 time=12.0 ms</p> <p>64 bytes from lax02s01-in-f18.1e100.net (74.125.224.178): icmp_seq=2 ttl=56 time=12.1 ms</p> <p>64 bytes from lax02s01-in-f18.1e100.net (74.125.224.178): icmp_seq=3 ttl=56 time=11.9 ms</p> <p>...</p> <p>64 bytes from lax02s01-in-f18.1e100.net (74.125.224.178): icmp_seq=194 ttl=56 time=11.9 ms</p> <p>64 bytes from lax02s01-in-f18.1e100.net (74.125.224.178): icmp_seq=195 ttl=56 time=11.9 ms</p> <p>--- www.l.google.com ping statistics --- 195 packets transmitted, 194 received, 0% packet loss, time 194711ms</p> </blockquote> <p>traceroute wwww.google.com result</p> <blockquote> <p>traceroute to www.google.com (74.125.224.180), 30 hops max, 60 byte packets</p> <p>1 ip-<em>-</em>-*-<em>.ip.secureserver.net (</em>.*.<em>.</em>) 0.585 ms 0.642 ms 0.778 ms</p> <p>2 be10.trmd0215-01.ars.mgmt.phx3.gdg (208.109.112.126) 0.599 ms 0.777 ms 0.893 ms</p> <p>3 ip-97-74-253-122.ip.secureserver.net (97.74.253.122) 11.840 ms 12.119 ms 12.275 ms</p> <p>4 ip-97-74-253-122.ip.secureserver.net (97.74.253.122) 12.389 ms 12.482 ms 12.600 ms</p> <p>5 PR01.LAX03.google.com (206.223.123.21) 11.739 ms 11.709 ms 11.707 ms</p> <p>6 209.85.248.185 (209.85.248.185) 11.986 ms 11.797 ms 11.781 ms</p> <p>7 72.14.236.11 (72.14.236.11) 12.606 ms 12.363 ms 12.328 ms</p> <p>8 lax02s01-in-f20.1e100.net (74.125.224.180) 11.774 ms 11.864 ms 11.842 ms</p> </blockquote>
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    1. COWhat type of network connection do you have, what do resources on the VPS host look like? Running the above works within 1-3 seconds for me on several platforms. It is something local to your setup. Can you ping/traceroute to google and update your question? This should probably be in serverfault.
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    2. COthank you sixeightzero, I added that information to my question
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    3. COchanged my resolver configuration (resolv.config) to Google's nameserver ip. Didn't help
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