git.m6w6.name Git - m6w6/m6w6.github.io/blob - _posts/2007-09-11-introducing-libcurls-multi-socket-api.md

   1 ---
   2 title: Introducing libcurls multi socket API
   3 author: m6w6
   4 tags:
   5 - PHP
   6 ---
   7
   8 So, finally a first beta of [pecl_http](http://pecl.php.net/package/pecl_http)
   9 1.6 has been released.
  10
  11 This is the first version which supports [libcurl](http://curl.haxx.se/libcurl/)s
  12 [multi socketAPI](http://curl.haxx.se/libcurl/c/curl_multi_socket.html) introduced in 7.16
  13 through libevent.
  14
  15
  16 Here's a not very impressive comparison of the performance of the traditional
  17 multi API vs. the new multi socket API:
  18 ```shell
  19 mike@honeybadger:~/build/php-5.2-debug$ cli
  20     ~/cvs/pecl/http/scripts/bench_select_vs_event.php
  21     -u http://honeybadger/empty.html
  22
  23 >   1.134667s
  24
  25 mike@honeybadger:~/build/php-5.2-debug$ cli
  26     ~/cvs/pecl/http/scripts/bench_select_vs_event.php
  27     -u http://honeybadger/empty.html
  28
  29 >   1.151088s
  30
  31 mike@honeybadger:~/build/php-5.2-debug$ cli
  32     ~/cvs/pecl/http/scripts/bench_select_vs_event.php
  33     -u http://honeybadger/empty.html
  34
  35 >   1.131867s
  36
  37 mike@honeybadger:~/build/php-5.2-debug$ cli
  38     ~/cvs/pecl/http/scripts/bench_select_vs_event.php
  39     -u http://honeybadger/empty.html -e
  40
  41 >   0.993878s
  42
  43 mike@honeybadger:~/build/php-5.2-debug$ cli
  44     ~/cvs/pecl/http/scripts/bench_select_vs_event.php
  45     -u http://honeybadger/empty.html -e
  46
  47 >   0.998832s
  48
  49 mike@honeybadger:~/build/php-5.2-debug$ cli
  50     ~/cvs/pecl/http/scripts/bench_select_vs_event.php
  51     -u http://honeybadger/empty.html -e
  52
  53 >   0.997121s
  54 ```
  55
  56 Above empty.html is, well, empty. The following test requests a 100k file:
  57 ```shell
  58 mike@honeybadger:~/build/php-5.2-debug$ cli
  59     ~/cvs/pecl/http/scripts/bench_select_vs_event.php
  60     -u http://honeybadger/100k.bin
  61
  62 >   2.205190s
  63
  64 mike@honeybadger:~/build/php-5.2-debug$ cli
  65     ~/cvs/pecl/http/scripts/bench_select_vs_event.php
  66     -u http://honeybadger/100k.bin
  67
  68 >   2.210525s
  69
  70 mike@honeybadger:~/build/php-5.2-debug$ cli
  71     ~/cvs/pecl/http/scripts/bench_select_vs_event.php
  72     -u http://honeybadger/100k.bin
  73
  74 >   2.254281s
  75
  76 mike@honeybadger:~/build/php-5.2-debug$ cli
  77     ~/cvs/pecl/http/scripts/bench_select_vs_event.php
  78     -u http://honeybadger/100k.bin -e
  79
  80 >   2.007220s
  81
  82 mike@honeybadger:~/build/php-5.2-debug$ cli
  83     ~/cvs/pecl/http/scripts/bench_select_vs_event.php
  84     -u http://honeybadger/100k.bin -e
  85
  86 >   1.945564s
  87
  88 mike@honeybadger:~/build/php-5.2-debug$ cli
  89     ~/cvs/pecl/http/scripts/bench_select_vs_event.php
  90     -u http://honeybadger/100k.bin -e
  91
  92 >   1.969575s
  93 ```
  94
  95 So, apparently time savings are not huge, but noticable.
  96