CS174
Chris Pollett
Nov 30, 2016
ab -nSOME_NUM -cCONCURRENCY URL
|fg5:search_yioop:105>ab -n2000 -c3 "http://localhost/git/yioop/?q=google" This is ApacheBench, Version 2.3 <$Revision: 655654 $> Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/ Licensed to The Apache Software Foundation, http://www.apache.org/ Benchmarking localhost (be patient) Completed 100 requests Completed 200 requests Completed 300 requests Completed 400 requests Completed 500 requests Completed 600 requests Completed 700 requests Completed 800 requests Completed 900 requests Completed 1000 requests Finished 1000 requests Server Software: Apache/2.2.24 Server Hostname: localhost Server Port: 80 Document Path: /git/yioop/?q=google Document Length: 328 bytes Concurrency Level: 3 Time taken for tests: 1.199 seconds Complete requests: 1000 Failed requests: 0 Write errors: 0 Non-2xx responses: 1000 Total transferred: 553000 bytes HTML transferred: 328000 bytes Requests per second: 834.27 [#/sec] (mean) Time per request: 3.596 [ms] (mean) Time per request: 1.199 [ms] (mean, across all concurrent requests) Transfer rate: 450.54 [Kbytes/sec] received Connection Times (ms) min mean[+/-sd] median max Connect: 0 3 59.1 0 1084 Processing: 0 0 0.1 0 1 Waiting: 0 0 0.1 0 1 Total: 0 4 59.2 0 1085 Percentage of the requests served within a certain time (ms) 50% 0 66% 0 75% 0 80% 0 90% 0 95% 0 98% 1 99% 1 100% 1085 (longest request)
Pick two of the pages of your Hw3 (not Hw4) solution. For each page, get a transcript of doing 1000 requests to that page using Apache Bench. Try three different settings for the concurrency 1, 10, 100.
Post what you observed to the Nov 30 Discussion Thread.
http://www.cs.sjsu.edu/faculty/pollett/in this network, you used to be able to make a request to:
http://www.cs.sjsu.edu.nyud.net/faculty/pollett/i.e., I tack on .nyud.net to the domain name.
Array( "name" => "Bob", ..., "posts" => Array([0] => Array("title" => "Dark and Stormy Night", ...), [1]=>...))
pecl install Memcachedand then add the line
extension=memcached.so(or .dll on Windows) to your php.ini file and restart everything.
extension=msgpack.so
memcached -d -m 50 -l 127.0.0.1 -p 11211
telnet 127.0.0.1 11211 set foo 0 0 6 lalala STORED
VALUE key flags bytes\r\n data block\r\none for each value returned, followed by an END\r\n after the last value.
get foo VALUE foo 0 6 lalala END
$memcached = new Memcached();
$memcached->addServer($host, $port, $weight);
$memcached->set($key, $val, $expire); //$expire - Unix timestamp, or seconds from present. 0 -don't expire
$memcached->get($key);
<html> <head><title>Memcache Test</title></head> <body> <h1>Test</h1> <?php $memcached = new Memcached(); $memcached->addServer("localhost", 11211); $memcached->set("bob", "value", 60); echo "<p>".$memcached->get("bob")."</p>"; ?> </body> </html>