Calling global methods is not much slower compared to calling local methods , What does it mean?

[Sandra_Rossi]

I am seeing the tips in the abap plataform, however in the performance tip and trick there is a section which says:

"Calling global methods is not much slower compared to
calling local methods"

however, I understand that Calling Global methods is a bit faster than calling local methods, but my teacher said the oposite.

So, what does it mean?

Thank you

[Sandra_Rossi]

As horst.keller said once: "once the external program is loaded, also about the same". And more precisely, he said: "You cannot ask this like that. You must ask if internal or external calls are faster. And for these it depends if the external program is already loaded or not. And b.t.w., there are also methods, which are the state-of-the-art procedures. There should be no difference between the different kinds of internal calls. Same for external calls."

[zerghector]

Hello Sandra, I not mean while calling an external or internal program, I just Ask for definition the quote of SAP,

Is what SAP is saying, thats all

Thank you

[matt]

""Calling global methods is not much slower compared to calling local methods" Looking purely at the English semantics, this can mean:

1. Local methods are slightly faster than global methods

2. Local methods are slower than global methods

3. Local methods are as fast as global methods

As Sandra Rossi (and Horst Keller) says - there is no difference and it's not something to worry about.

[zerghector]

It worrying because if you have to work with a really big database and you must use a method to work with that, it might have a big impact using one or another, so that is why I ask,

What is more, is in the "Tip and tricks" section, so I do think it is important because nobody uses it.

However Thanks for your response, I am Spanish native , so English is dificult to me.

Thank you

[matt]

I understood you're not a native English speaker (I work with them every day!), that's why I explained how the text could be interpreted.

As someone with 20 years experience of SAP and with really big database I can assure that local/global classes are never going to be the critical issue. Don't worry about it. Far more important is program design. Use local classes where appropriate, using global where appropraite.