Edit report at https://bugs.php.net/bug.php?id=64001&edit=1
ID: 64001
Comment by: lisachenko dot it at gmail dot com
Reported by:lisachenko dot it at gmail dot com
Summary:Slow method invocation for PHP5.5.0 with Development
Server
Status: Feedback
Type: Bug
Package:Performance problem
Operating System: Windows 7 x64
PHP Version:5.5.0alpha3
Block user comment: N
Private report: N
New Comment:
Rewriting the source code in that way fixes the issue and execution time is
about 4us. But how presence of php.ini with default settings can be related
with the speed of method invocation for my case?
Can you reproduce it with my code and my php.ini http://pastebin.com/zDNvzuvg ?
Here is the difference for php -i for loaded/unloaded php.ini
http://pastebin.com/BrxBaTJ0 Speed of execution for my previous code block is
not equal (5us and 1ms)
Previous Comments:
[2013-01-18 09:18:47] larue...@php.net
How about change to this:
class TestPerformance {
public function speed()
{
$time = microtime(true);
$this->nop();
$end = microtime(true);
echo 'Took ', sprintf("%0.3fms to call method", ($end - $time) * 1e3);
}
protected function nop() {}
}
$instance = new TestPerformance;
$instance->speed();
[2013-01-17 10:35:26] lisachenko dot it at gmail dot com
Yeah, detected the issue.
Configurations were the same for all installations (default configuration), so
this issue doesn't relate to the output buffering. Just to be sure, I have
compared output for "php -i" for all installations, there were only differences
in REQUEST_TIME, build version and ... presence of loaded php.ini file for
PHP5.4.10.
If php.ini file is present (settings are still default) and loaded, then speed
of method invocation is higher... Amazing ) Without php.ini (but with the same
default settings) speed is lower for internal development server.
This can be reproduced with PHP5.4.10 too. So this performance bug is more
general.
[2013-01-17 05:45:40] larue...@php.net
I can not reproduce this, do they (5.4 and 5.5) share the same php.ini
configure?
I think maybe due to output buffer.
[2013-01-16 07:41:27] lisachenko dot it at gmail dot com
Update PHP version for issue manually (There isn't alpha3 in select).
[2013-01-16 07:38:38] lisachenko dot it at gmail dot com
Description:
I notice, that speed of method invocation for PHP5.5.0alpha3 is significantly
slower than for PHP5.4 when running the script with internal Development
Server. However, for CLI-mode PHP5.5.0 is faster than PHP5.4.10, as expected.
To reproduce the issue, please start the development server and execute test
script in the browser.
Test script:
---
class TestPerformance {
public function speed()
{
$time = microtime(true);
$this->nop();
echo 'Took ', sprintf("%0.3fms to call method", (microtime(true) -
$time) * 1e3);
}
protected function nop() {}
}
$instance = new TestPerformance;
$instance->speed();
Expected result:
Expecting that method invocation will take microseconds to finish:
php-5.4.10-Win32-VC9-x86:
Took 0.005ms to call method
php-5.5.0alpha3-Win32-VC9-x86:
Took 0.00Xms to call method
Actual result:
--
Method invocation for 5.5.0alpha3 took millisecond to finish:
php-5.4.10-Win32-VC9-x86:
Took 0.005ms to call method
php-5.5.0alpha3-Win32-VC9-x86:
Took 1.008ms to call method
php-5.5.0alpha3-nts-Win32-VC9-x86:
Took 1.000ms to call method
--
Edit this bug report at https://bugs.php.net/bug.php?id=64001&edit=1
