Page load speed

Hello,
What are the factors that weight in APEX page loading time ? How can we pinpoint which factor is causing the app to be slow.
e.g:
I have two instances that have almost the same configuration, but there is around 100 ms difference in the page loading time.
The first one is here:
user: test
pwd: test
94.200.97.14:9999/apex/f?p=110:1
Product Build: 4.2.2.00.11
CORE 11.2.0.1.0 Production
APEX_LISTENER_VERSION 2.0.2.133.14.47
Glassfish 3.1.2
Machine: assembled PC: Intel i7 , 16 GB RAM.
Windows 7
The second one is here:
user: test
pwd: test
94.200.97.14:8080/apex/f?p=100:1
Product Build: 4.2.2.00.11
CORE 11.2.0.3.0 Production
APEX_LISTENER_VERSION 2.0.2.133.14.47
Glassfish 3.1.2
Windows 2008 R2
Machine: HP server with the following specs:
DL380p Gen8 E5-2609 (4 core, 2.40
GHz, 10MB, 80W)P420i /512MB
FBWC, 4x1Gb Flex 16GB DDR3
Registered Memory (LV DIMM)
SFF HP DVD-RW, 1x460W Gold
HP 600GB 6G SAS 10K 2.5in SC ENT
The problem is the instance the is running in a certified server that is HP DL380p is slower than the instance that is running on the assembled PC.
Regards,

Interesting.
My unscientific test was that initial load on both was very slow, perhaps slower on the first server. Then as expected, once woken up it seemed acceptable. Not snappy but good. Looking at the network traffic using Developer Tools, I have 300+ms spend just waiting. Then delivery is very fast. It seems to be on all pages.
So... I think the DB needs to be tuned or perhaps there's a lot of swapping going on. Hard to tell.
Clearly you're not even at the Application tuning step yet. Your environment has some bottlenecks somewhere. But you already knew that.
Sorry I can't be of more help
Thanks
-Jorge

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