slow preformace after upgrade to 1.39

Hi,
I in the process of upgrading a customers site from 1.36 to 1.39h and we seem to have a 5 fold decrease in performance. I have run the same upgraded site both locally on my laptop and on my own development site with no impairment of performance.

The database query times are acceptable but the parse times are not.

Is the performance issue due to mismatch between the new zencart 1.3.9h and PHP 4.4.9 or are there other issues I need to look at?

Thanks for reading
Mackenzie

The basic server information:
Server OS: Windows NT WEBC16 5.2 build 3790
Database: MySQL 5.0.54-log
HTTP Server: Microsoft-IIS/6.0
PHP Version: 4.4.9 (Zend: 1.3.0)
PHP Safe Mode: Off
Data Size: 109,287 kB
Database Index Size: 5,539 kB

SAMPLE Load times on the same page
Current site: (zencart 1.36)
Parse Time: 2.298 - Number of Queries: 323 - Query Time: 0.543119
Parse Time: 2.449 - Number of Queries: 323 - Query Time: 0.606774
Parse Time: 2.239 - Number of Queries: 322 - Query Time: 0.511505

Upgrade site: (zencart 1.39h)
Parse Time: 12.501 - Number of Queries: 334 - Query Time: 0.686452
Parse Time: 12.505 - Number of Queries: 324 - Query Time: 0.532058
Parse Time: 12.505 - Number of Queries: 324 - Query Time: 0.532058

Sorry no URL: the upgraded site is not public yet.

Is this a dedicated or shared server? And, Gotta wonder why you're planning to run Zen Cart on a Windows server with PHP4?

mcosens:

I have run the same upgraded site both locally on my laptop and on my own development site with no impairment of performance.
Do I understand this correctly? You're saying that running the upgraded site on various servers other than the live server, works just fine with no performance problems?
By process of elimination, that suggests the bottleneck is the live server.

And, I echo kuroi's comments: why use obsolete PHP4? why windows?

The main reason for using "obsolete" PHP is compatibility with 1.3.6. He has a website that runs 1.3.6 and generates a revenue stream. If PHP had not broken backward compatibility then this would be an non-issue. Besides PHP 4.4.9 fits with in the requirements to run 1.39 https://www.zen-cart.com/tutorials/index.php?article=6

If no one can think of any other likely cause for poor performance I will give my client the easy answer: Which is when he is happy with the test site, we will get the ISP to upgrade PHP .

Thanks for you time.
mackenzie

... and is a dedicated or a shared server?

What are the server loads?

kuroi:

... and is a dedicated or a shared server?

What are the server loads?

Hi
I don't think that dedicated vs shared server is the issue. Both sets of code exist on the same server in different directories. I would expect any impairment in performance to be the same on both sets of code since they share the same environment. I don't think load is the issue either for the same reason, I would expect both sets of code to impaired the same and poor performance to be shared between them and that doe not seem to be the case.

I just finished reading http://www.zen-cart.com/forum/showthread.php?t=153143 DrByte post has been very helpful. He indicates that "If you're using such an old version of PHP, then your site is certainly not PCI-Compliant" and indicates some unhelpful behaviors within the new code when used with older PHP version. I think these are reasons enough to recommend upgrading to newer version. I expect the server environment upgrade will fix the performance issue.

Thank you for your posts and inquiries, they have been very helpful in dealing with this issue.

mackenzie

I have just resolved the slow performance issue with my upgrade. Its an interesting lesson in things that you would not think would be so deadly to performance but are.

In Configuration::My Store there is a setting ** Enable phpBB linkage?** this was set to true. There is no phpBB installed on the new server so I set it to false and my Parse Time: went from 10+sec to under 1 sec

mackenzie

That's one I've not heard of before and very useful to know. Thanks for sharing it with the community.