php accelerator
Number of replies: 19
php accelerator for php 5.1+ is ther available out there?
Re: php accelerator
I'm using PHP 5.1.4 with APC .
Re: php accelerator
I have tested eaccelerator 0.9.5 beta 2 with php 5.1. however things doesn't work out. The beta version doest work on moodle 1.5.3+ . I dun know about other version of moodle. But the eaccelerator halt when loading some php page. It just hang there and i need to restart the server.
I hope someone can do something about it. I going to test on APC.
Anyone tested it. Doest it work well ?
I hope someone can do something about it. I going to test on APC.
Anyone tested it. Doest it work well ?
Re: php accelerator
i do agree that eaccelerator doesnt work weel with php5+
Re: php accelerator
Initial test of APC with PHP 5.1 working fine with performance increase more than 500%. I dint test for long run yet.
Re: php accelerator
i did installed APC still observing... thanks, hope nothing breaks...
Re: php accelerator
from where i can download APC for php 4.3.11?????
i have used eacaclerator but pages are breaking....
Re: php accelerator
if i not mistaken APC support PHP 4.X and 5.X. So just get the latest version
Re: php accelerator
Download from here http://pecl.php.net/package/APC.
Remember that there is a processor overhead and adjust the php.ini settings according to this formula:
Free memory = apc.shm_segments * apc.shm_size
Example: with 512Mb physical RAM free on the server, I have apc.shm_segments = 4 and apc.shm_size = 128 (or any combination but the more segments the better - you need to experiment.) If this is not set properly, your server will start to page files to disk, which decreases performance.
Ken
Re: php accelerator
APC works great for me, too, as does eaccelerator 0.9.5 beta 2, BUT...
If I turn the "apc.stat" variable to 0 (do not check to see changes in PHP scripts... supposedly would give a significant performance boost but require an apache restart in order to update scripts, which is okay as I don't plan to change any of the scripts), then my frontpage becomes blank. I can still access other php scripts like apc.php, and strangely there are no PHP errors on the screen OR dumped to apache logs. This is really bothering me because I have somewhat limited hardware and the user load is going to increase several times when the Fall comes. I need every bit of performance for when people want to hold quizzes or other heavy-load activities.
If I turn the "apc.stat" variable to 0 (do not check to see changes in PHP scripts... supposedly would give a significant performance boost but require an apache restart in order to update scripts, which is okay as I don't plan to change any of the scripts), then my frontpage becomes blank. I can still access other php scripts like apc.php, and strangely there are no PHP errors on the screen OR dumped to apache logs. This is really bothering me because I have somewhat limited hardware and the user load is going to increase several times when the Fall comes. I need every bit of performance for when people want to hold quizzes or other heavy-load activities.
Re: php accelerator
I'd leave apc.stat = 1 (as default). Looking on the php dev mailing list, there is a recent discussion showing no big gains in setting it to 0, which is contrary to the official docs.
Ken
Ken
Re: php accelerator - apc fragmentation
I'm running Apache/2.0.55 (Ubuntu) PHP/5.1.2 mod_ssl/2.0.55 OpenSSL/0.9.8a with the following APC settings. I have started to see some (what appears to me) significant fragmentation occuring when I look at the apc.php. I was wondering what I might do in terms of configuration to avoid fragmentation and when should I get concerned about fragmentation? How are other Moodlers handling/monitoring this? For the time being, I have opened up the page so that it can be seen at http://moodle.jesuitcp.org/apc.php - any advice would be greatly appreciated.
APC Runtime Settings
| apc.cache_by_default | 1 |
| apc.enable_cli | 0 |
| apc.enabled | 1 |
| apc.file_update_protection | 2 |
| apc.filters |
|
| apc.gc_ttl | 3600 |
| apc.max_file_size | 1M |
| apc.mmap_file_mask | /tmp/apc.G60RtP |
| apc.num_files_hint | 1024 |
| apc.optimization | 0 |
| apc.shm_segments | 1 |
| apc.shm_size | 64 |
| apc.slam_defense | 0 |
| apc.stat | 1 |
| apc.ttl | 7200 |
| apc.user_entries_hint | 100 |
| apc.user_ttl | 7200 |
Re: php accelerator
mind to share what version of php you are using.
I have tried eaccelerator on php 5.1.4 but many pages just hang halfway. No error in apache log and i dun know where to debug. U are using eaccelerator 0.9.5 beta 2 for windows or for linux ? I am using it for windows platform
I have tried eaccelerator on php 5.1.4 but many pages just hang halfway. No error in apache log and i dun know where to debug. U are using eaccelerator 0.9.5 beta 2 for windows or for linux ? I am using it for windows platform
Re: php accelerator
Justin
Here's the output from 'php -v':
C:\>php -v
PHP 5.1.4 (cli) (built: May 4 2006 10:35:22)
Copyright (c) 1997-2006 The PHP Group
Zend Engine v2.1.0, Copyright (c) 1998-2006 Zend Technologies
The windows binary is a download from here http://pecl4win.php.net/ext.php/php_apc.dll. I'm using the php-5.1.2 version and it seems stable.
Ken
Here's the output from 'php -v':
C:\>php -v
PHP 5.1.4 (cli) (built: May 4 2006 10:35:22)
Copyright (c) 1997-2006 The PHP Group
Zend Engine v2.1.0, Copyright (c) 1998-2006 Zend Technologies
The windows binary is a download from here http://pecl4win.php.net/ext.php/php_apc.dll. I'm using the php-5.1.2 version and it seems stable.
Ken
Re: php accelerator
hi
i have just downlaoded APC binary for php 4.3.11. could anybody give me the settings to be made in php.ini and in APC whose APC is running successfully??
Regards,
Tahir
Re: php accelerator
Ken - If you have a moment, would you mind taking a quick look at http://moodle.jesuitcp.org/apc.php and let me know if I should be concerned about the level of fragmentation and perhaps any recommendations you might have to avoid it? I'm new to the who php acceleration and APC thing. Peace.
Re: php accelerator
Anthony
The fragmentation figure may be a red herring. APC has an efficient algorithm for reducing fragmentation and uses a simple offset-based linked list to store cache entries.
Take a look at the cache full count. In the last 3 days the cache has been purged twice, so its getting full and cleaning-out the old entries (those not accessed in the Time To Live time= 3600secs).
Try increasing the apc.shm_size first, but check that you have enough free memory (use the free value in 'top'). 128M is a good size - but it all depends on how much shared memory has been allocated in your system - again use 'top' to guide you on this.
If it works for you, set apc.stat to 0 (but note that there's controversy over this setting at the moment), and try increasing the number of apc.shm_segments (although Rasmus - the lead developer and the guy who invented PHP uses only 1 segment
).
It would be interesting to hear how you get on, so please report back.
Ken
The fragmentation figure may be a red herring. APC has an efficient algorithm for reducing fragmentation and uses a simple offset-based linked list to store cache entries.
Take a look at the cache full count. In the last 3 days the cache has been purged twice, so its getting full and cleaning-out the old entries (those not accessed in the Time To Live time= 3600secs).
Try increasing the apc.shm_size first, but check that you have enough free memory (use the free value in 'top'). 128M is a good size - but it all depends on how much shared memory has been allocated in your system - again use 'top' to guide you on this.
If it works for you, set apc.stat to 0 (but note that there's controversy over this setting at the moment), and try increasing the number of apc.shm_segments (although Rasmus - the lead developer and the guy who invented PHP uses only 1 segment
).
It would be interesting to hear how you get on, so please report back.
Ken
Re: php accelerator
Ken - Thanks for getting back with me and for the feedback. When I get back to the school I will increase the size to 128M. We have 4 gig on the machine so I am sure we can spare 128M. I will also switch the number of segments to 4. For the time being I will leave stat at 1 and see what happens. The server ran for several days with no problems but it is something I want to keep an eye on and I will report back how things go. I should have a good idea with the server getting loaded as school begins.
Re: php accelerator
I personally we keep it simple using Zend Optimizer v3.0.1 which now supports PHP 5.1.4.
Re: php accelerator
Same here. It wasn't a 'huge' performance boost, but it helped. Anything is better than nothing.