Too long Waiting (TTFB) SAPUI5 Application resources and WerbService requests

[Former Member]

Hello,

I was hoping someone could shed some light on why I see such long wait times when my UI5 application loads or calls OData WebServices. Below are 2 pics I took with ChromeDev and IEDev Tools of a WebService with expand (GET_EXPANDED_ENTITYSET).

There are also other resources ($metadata, view.js/controller.js files, multiple library-preload.json calls etc) and they also have like 90% wait time although the size is marginal like 5-100KB.

I look at multiple resources on OData and Gateway performance. I applied expand and batch on the gateway size. The OData suggestions like using top, select, etc I also applied where was necessary.

Hopefully someone can explain what is causing this much Waiting (TTFB) time.

[former_member185414]

Hello,

Can you run trace as suggested here

http://help.sap.com/saphelp_gateway20sp10/helpdata/en/9d/da3a2ceca344cf85568ae927e9858d/frameset.htm

and tell us the root cause of delay.

BR.

[Former Member]

This is from running T-Code /IWBEP/TRACES

And this is from running T-Code /IWFND/TRACES

Anything interesting here?

[former_member185414]

Hello,

The trace time is pretty usual and within the performance guidelines.

Generally the load of app should be as fast as possible and basic scenarios should load in approx 1 sec. This can be split as 300 ms for one way data transport, 100-200 ms for rendering and 500 ms for backend OData calls.

If you still want to optimize please share code and we can have a look.

BR.

[Former Member]

What code would be helpful? If the trace seems to be OK then what else might produce such a long wait time?

[former_member185414]

Yes the trace seems ok to me but there can be scope of improvement based on underlying coding done in backend/UI.