Async subprocess Vs Start process

Hi Satheesh

I think start process activity is the best in terms of performance. But please take a look into the below link and match your use case (requirement) with the design vs performance.

There is a tabulation which explains the

Comparing Ways to Start a Process from a Process and 
Common Use Cases

https://docs.appian.com/suite/help/21.1/Ways_to_Start_a_Process_From_a_Process.html 

hope this helps!

Thanks .Have a good day!

The main diffenerce between the Async subprocess and start process is the way they use the engines.

The async subprocess will usethe same engine as the parent and hence if the subprocess needs more processing and hence resouces, the same engine will be loaded.Whereas the start process balances between the engines(runs on separate engine than the parent). Hence we can be carefree about single engine getting the whole load.