獲取站點的各類響應時間(dns解析時間,響應時間,傳輸時間)

更新時間：2014年03月17日 15:16:18 作者：

有時候為了測試網絡情況，需要返回每個階段的耗時時間，比如DNS解析耗時，建立連接所消耗的時間，從建立連接到準備傳輸所使用的時間，從建立連接到傳輸開始所使用的時間，整個過程耗時，下載的數(shù)據量，下載速度，上傳數(shù)據量，上傳速度等等

有時候為了測試網絡情況，需要返回每個階段的耗時時間，比如DNS解析耗時，建立連接所消耗的時間，從建立連接到準備傳輸所使用的時間，從建立連接到傳輸開始所使用的時間，整個過程耗時，下載的數(shù)據量，下載速度，上傳數(shù)據量，上傳速度等等。下面的腳本獲取以上信息：

CURL的資料參見： http://curl.haxx.se/libcurl/c/curl_easy_getinfo.html

復制代碼代碼如下:

###################################
### author: www.ttlsa.com ###
### QQ群: 39514058 ###
### E-mail: service@ttlsa.com ###
###################################
use strict;
use Data::Dumper;
use WWW::Curl::Easy;

if(!@ARGV){
print "Usaging: $0 url\n";
print "For example: $0 www.ttlsa.com\n";
exit;
}

my $curl = new WWW::Curl::Easy;
open my $response_body,">/dev/null";
$curl->setopt(CURLOPT_HEADER,1);
$curl->setopt(CURLOPT_URL, $ARGV[0]);
$curl->setopt(CURLOPT_WRITEDATA,\$response_body);
$curl->perform;
my $err = $curl->errbuf;
if(!$err){
my $st = &getTime;
my $http_code = $curl->getinfo(CURLINFO_RESPONSE_CODE);
my $http_dns_time = $curl->getinfo(CURLINFO_NAMELOOKUP_TIME);
my $http_conn_time = $curl->getinfo(CURLINFO_CONNECT_TIME);
#my $http_APP_time = $curl->getinfo(CURLINFO_APPCONNECT_TIME);
my $http_PRE_TRAN_time = $curl->getinfo(CURLINFO_PRETRANSFER_TIME);
my $http_START_TRAN_time = $curl->getinfo(CURLINFO_STARTTRANSFER_TIME);
my $http_TOTAL_time = $curl->getinfo(CURLINFO_TOTAL_TIME);
my $http_SIZE_DOWN = $curl->getinfo(CURLINFO_SIZE_DOWNLOAD);
my $http_SPEED_DOWN = $curl->getinfo(CURLINFO_SPEED_DOWNLOAD);

printf "local_time: %s, http_code: %d, dns_time: %.3fms, conn_time: %.3fms, pre_tran_time: %.3fms, start_tran_time: %.3fms, total_time: %.3fms, size_download: %dB, speed_download: %dB/s",($st,$http_code,$http_dns_time,$http_conn_time,$http_PRE_TRAN_time,$http_START_TRAN_time,$http_TOTAL_time,$http_SIZE_DOWN,$http_SPEED_DOWN);
write;

format STDOUT_TOP=
站點各類響應時間明細-@||
$%
=========================
+---------------------+------+-------------+--------------+--------------------------+------------------------+-------------+-----------+------------+
| 本地時間 | 狀態(tài) | DNS解析時間 | 建立連接時間 | 從建立連接到準備傳輸時間 |從建立連接到開始傳輸時間| 整個過程時間| 下載數(shù)據量|平均下載速度|
+---------------------+------+-------------+--------------+--------------------------+------------------------+-------------+-----------+------------+
.

format STDOUT=
|@<<<<<<<<<<<<<<<<<<<<| @<<<<| @<<<<<<<<<<<| @<<<<<<<<<<<<| @<<<<<<<<<<<<<<<<<<<<<<<<| @<<<<<<<<<<<<<<<<<<<<<<| @<<<<<<<<<<<| @<<<<<<<<<| @<<<<<<<<<<|
$st,$http_code,$http_dns_time."ms",$http_conn_time."ms",$http_PRE_TRAN_time."ms",$http_START_TRAN_time."ms",$http_TOTAL_time."ms",$http_SIZE_DOWN."B",$http_SPEED_DOWN."B/s"
+---------------------+------+-------------+--------------+--------------------------+------------------------+--------------+----------+------------+
.
}else{
print "Error: $err\n";
}

sub getTime()
{
my @time=(localtime)[5,4,3,2,1,0];
$time[0]+=1900;
$time[1]+=1;
return sprintf("%04u-%02u-%02u %02u:%02u:%02u",@time);
}

shell命令下也有相同的命令如下所示：

復制代碼代碼如下:

 
# curl -o /dev/null -s -w %{http_code}:%{http_connect}:%{time_namelookup}:%{time_connect}:%{time_pretransfer}:%{time_starttransfer}:%{time_total}:%{size_download}:%{speed_download} www.ttlsa.com 

不解釋了，具體參見 man curl

使用 cURL 獲取站點的各類響應時間 – dns解析時間,響應時間,傳輸時間

復制代碼代碼如下:

 
curl -o /dev/null -s -w %{http_code}:%{http_connect}:%{content_type}:%{time_namelookup}:%{time_redirect}:%{time_pretransfer}:%{time_connect}:%{time_starttransfer}:%{time_total}:%{speed_download} digdeeply.org 

這是一個本人博客站點執(zhí)行 curl 命令的情況。輸出通常是 HTML 代碼，通過 -o 參數(shù)發(fā)送到 /dev/null。-s 參數(shù)去掉所有狀態(tài)信息。-w 參數(shù)讓 curl 輸出的計時器的狀態(tài)信息。

一次http請求中的各個時間段-dns解析,等待服務器響應,獲取內容等

下邊對-w參數(shù)做個詳細的解釋，由我(DigDeeply)翻譯。有不對的地方請大家指出。(英文原文：http://curl.haxx.se/docs/manpage.html)
以下是可用的變量名：

　-w, --write-out
　以下變量會按CURL認為合適的格式輸出，輸出變量需要按照%{variable_name}的格式，如果需要輸出%，double一下即可，即%%，同時，\n是換行，\r是回車，\t是TAB。

url_effective The URL that was fetched last. This is most meaningful if you've told curl to follow location: headers.

filename_effective The ultimate filename that curl writes out to. This is only meaningful if curl is told to write to a file with the --remote-name or --output option. It's most useful in combination with the --remote-header-name option. (Added in 7.25.1)

http_code http狀態(tài)碼，如200成功,301轉向,404未找到,500服務器錯誤等。(The numerical response code that was found in the last retrieved HTTP(S) or FTP(s) transfer. In 7.18.2 the alias response_code was added to show the same info.)

http_connect The numerical code that was found in the last response (from a proxy) to a curl CONNECT request. (Added in 7.12.4)

time_total 總時間，按秒計。精確到小數(shù)點后三位。（The total time, in seconds, that the full operation lasted. The time will be displayed with millisecond resolution.）

time_namelookup DNS解析時間,從請求開始到DNS解析完畢所用時間。(The time, in seconds, it took from the start until the name resolving was completed.)

time_connect 連接時間,從開始到建立TCP連接完成所用時間,包括前邊DNS解析時間，如果需要單純的得到連接時間，用這個time_connect時間減去前邊time_namelookup時間。以下同理，不再贅述。(The time, in seconds, it took from the start until the TCP connect to the remote host (or proxy) was completed.)

time_appconnect 連接建立完成時間，如SSL/SSH等建立連接或者完成三次握手時間。(The time, in seconds, it took from the start until the SSL/SSH/etc connect/handshake to the remote host was completed. (Added in 7.19.0))

time_pretransfer 從開始到準備傳輸?shù)臅r間。(The time, in seconds, it took from the start until the file transfer was just about to begin. This includes all pre-transfer commands and negotiations that are specific to the particular protocol(s) involved.)

time_redirect 重定向時間，包括到最后一次傳輸前的幾次重定向的DNS解析，連接，預傳輸，傳輸時間。(The time, in seconds, it took for all redirection steps include name lookup, connect, pretransfer and transfer before the final transaction was started. time_redirect shows the complete execution time for multiple redirections. (Added in 7.12.3))

time_starttransfer 開始傳輸時間。在發(fā)出請求之后，Web 服務器返回數(shù)據的第一個字節(jié)所用的時間(The time, in seconds, it took from the start until the first byte was just about to be transferred. This includes time_pretransfer and also the time the server needed to calculate the result.)

size_download 下載大小。(The total amount of bytes that were downloaded.)

size_upload 上傳大小。(The total amount of bytes that were uploaded.)

size_header 下載的header的大小(The total amount of bytes of the downloaded headers.)

size_request 請求的大小。(The total amount of bytes that were sent in the HTTP request.)

speed_download 下載速度，單位-字節(jié)每秒。(The average download speed that curl measured for the complete download. Bytes per second.)

speed_upload 上傳速度,單位-字節(jié)每秒。(The average upload speed that curl measured for the complete upload. Bytes per second.)

content_type 就是content-Type，不用多說了，這是一個訪問我博客首頁返回的結果示例(text/html; charset=UTF-8)；(The Content-Type of the requested document, if there was any.)

num_connects Number of new connects made in the recent transfer. (Added in 7.12.3)

num_redirects Number of redirects that were followed in the request. (Added in 7.12.3)

redirect_url When a HTTP request was made without -L to follow redirects, this variable will show the actual URL a redirect would take you to. (Added in 7.18.2)

ftp_entry_path The initial path libcurl ended up in when logging on to the remote FTP server. (Added in 7.15.4)

ssl_verify_result ssl認證結果，返回0表示認證成功。( The result of the SSL peer certificate verification that was requested. 0 means the verification was successful. (Added in 7.19.0))

若多次使用-w參數(shù)，按最后一個的格式輸出。If this option is used several times, the last one will be used.