same script but huge time differences

Anon

I am testing a php script in two differente servers A and B. Although A is much faster than B, the script runs 100 times slower in A. The problem is noticed only in the print html parts of the script. The other parts (only calculations) run fastly as expected. Is It a configuration problem (apache? php?)?
It is very strange because it seems that if the client borwser is occupied, the time execution of the php script is afected.
PS: I am timing the script execution with a microtime function at the beginning and at the end of the script.

vsego

I've experienced similar behavior when reading page with Netscape 4,51 on the same machine which is running Apache and the page is being created as a result of POSTed form. Maybe this gives you some idea...

Sorry I couldn't help (more).

[deleted]

First, what kind of times are we talking about when you say 100 times slower. Is that the difference between 4 milliseconds and 400 or between 1 microsecond and 100 microseconds?

Do both machies have the exact same OS/Webserver/PHP etc? If not, then there are many many things that can cause the difference.

Anon

Yes, both servers has Linux/Apache/PHP
We changed PHP to PHP4 and PHP3 without solving the problem
(I don't know every configuration detail:
the slow running server was set up by digination )
The times involved are:
0,06 s for one server (Pentium II 400)
and 6 s for the other one (Pentium III 700)
The script running are the same.
They don't make any IO operation.
The only thing envolved is calculation
and html table construction.
The most strange behaviour is that it seems
as if time lag in cliente browser side acts over
script execution time

vincent wrote:

First, what kind of times are we talking about when you say 100 times slower. Is that the difference between 4 milliseconds and 400 or between 1 microsecond and 100 microseconds?

Do both machies have the exact same OS/Webserver/PHP etc? If not, then there are many many things that can cause the difference.