After running into some issues with slowness on a project I am working on using the Zend Framework I started trying to hunt down the issue. In this case, the problem was being caused by using Zend_Date. Here are the results of my tests:
Results using PHP's DateTime
ab -n 100 -c 10 http://localhost/test/datebm_php.php
This is ApacheBench, Version 2.3 <$Revision: 655654 $>
Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/
Licensed to The Apache Software Foundation, http://www.apache.org/
Benchmarking localhost (be patient).....done
Server Software: Apache/1.3.37
Server Hostname: localhost
Server Port: 80
Document Path: /test/datebm_php.php
Document Length: 22 bytes
Concurrency Level: 10
Time taken for tests: 0.163 seconds
Complete requests: 100
Failed requests: 0
Write errors: 0
Total transferred: 26100 bytes
HTML transferred: 2200 bytes
Requests per second: 613.44 [#/sec] (mean)
Time per request: 16.301 [ms] (mean)
Time per request: 1.630 [ms] (mean, across all concurrent requests)
Transfer rate: 156.36 [Kbytes/sec] received
Connection Times (ms)
min mean[+/-sd] median max
Connect: 0 1 0.4 1 3
Processing: 5 15 5.2 13 37
Waiting: 4 15 5.2 13 37
Total: 5 16 5.3 14 38
Percentage of the requests served within a certain time (ms)
50% 14
66% 15
75% 18
80% 21
90% 25
95% 27
98% 30
99% 38
100% 38 (longest request)
Results using Zend_Date
ab -n 100 -c 10 http://localhost/test/datebm_zend.php
This is ApacheBench, Version 2.3 <$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).....done
Server Software: Apache/1.3.37
Server Hostname: localhost
Server Port: 80
Document Path: /test/datebm_zend.php
Document Length: 22 bytes
Concurrency Level: 10
Time taken for tests: 6.724 seconds
Complete requests: 100
Failed requests: 0
Write errors: 0
Total transferred: 26100 bytes
HTML transferred: 2200 bytes
Requests per second: 14.87 [#/sec] (mean)
Time per request: 672.386 [ms] (mean)
Time per request: 67.239 [ms] (mean, across all concurrent requests)
Transfer rate: 3.79 [Kbytes/sec] received
Connection Times (ms)
min mean[+/-sd] median max
Connect: 0 1 0.3 1 2
Processing: 87 648 157.0 663 1502
Waiting: 87 647 154.6 663 1502
Total: 88 649 156.9 664 1503
Percentage of the requests served within a certain time (ms)
50% 664
66% 677
75% 697
80% 708
90% 757
95% 785
98% 1187
99% 1503
100% 1503 (longest request)
And here is the code
datebm_php.php
<?php
date_default_timezone_set('America/New_York');
$dbDate = date("Y-m-d H:i:s");
$date = new DateTime($dbDate);
echo $date->format('m/d/Y h:iA');
?>
datebm_zend.php
<?php
date_default_timezone_set('America/New_York');
$dbDate = date("Y-m-d H:i:s");
function __autoload ($class)
{
$file = str_replace("_", "/", $class) . ".php";
include_once($file);
}
Zend_Date::setOptions(array('format_type' => 'php'));
$date = new Zend_Date($dbDate, Zend_Date::ISO_8601);
echo $date->get('m/d/Y h:iA');
?>
