Varying results via backtesting

[eSignal_JasonK]

Hello takis,

I changed the start and end times, so we should be covering the same time frame now. The total hours covered are 10 hours and 49 minutes. We do have some differences.



Here's some of the trades. My guess is that we have a server syncronization difference.

[takis]

10 hours and 49 minutes is the correct
so,
its the server
and for that i guess we can do nothing!
so, scott was right, its all about servers and i hope esignal corrects it soon as backtesting is quite sloppy this way.
thanks for your help and if you have anything that could correct the problem just let me know
thanks a lot

[takis]

OK!!
here is the trick!
log in and log out again for several times
everytime you log in run the same test as before
you will see that you get 2 different results as many times as you run the test
so i guess there are two servers

i just did it now!
on the first it gives me 165 points and on the other one 214!

try it several times untill you see what i mean

[JayF]

takis,

Seeing different results when logging in and out is to be expected because, as you guessed, the synchronization issue Scott mentioned.

Just to clarify, we have hundreds of servers, and that's one of the reasons the synchronization process takes a long time to implement. Without every single server having this "synch build" it becomes useless. So in having hundreds of servers to upgrade, test, and release... it's quite an undertaking.