Avoiding excessive queries to the server?

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Tony
262
Tony  

Hi


Does the function MarketInfo( Symbol(), MODE_SPREAD ) query the server or client terminal?


When working with a very volatile spread (e.g. AUDNZD) I find I want to average the spread tick by tick, but does that mean I'm making server requests every tick? I'm happy to pester the client terminal, but I don't want to repeatedly query the server like this.


Is there accepted good practice with regard to frequency of querying the server?


What about other functions? Where can I find out which functions are dealt with by the server and which are dealt with by the client terminal?


I would appreciate any guidance on this subject.


Thanks

Jellybean

Ray
2646
Ray  

no.

Trade commands go to the server.

OrderSend OrderModify OrderDelete

Do a timing test.

Server commands take a looong time to execute compared to local commands.

Much of it is just transit time to get to and back from the server.

Tony
262
Tony  

Thanks phy


Understand. It's a good test you suggest. Overnight, I also wondered if I could test the functions off-line. I'd expect all the functions to work except those that went to the server.


Anyway, thanks again. I will monitor the spread with vigor ;-)


Jellybean

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