Executing functions in parallel?

[Max Nowak]

Hi,

I want to execute multiple functions in parallel (i.e. spawning multiple executions of that function) from a for loop, is that even possible? In the example below, I would have expected (or rather, hoped) that the for loop basically spawns 3 parallel executions of the getData()-function, so that the total execution time would be 10 seconds. Instead, the execution time is 30 seconds.

function getData(element,index,array) { 
    // sleep 10 seconds
    gs.sleep(10000);
    gs.info('Finished execution for ' + element + ' at ' + Date.now());
}

var arr = ['client1','client2','client3'];
arr.forEach(getData);

// Log:
*** Script: Finished execution for client1 at 1660832916531
*** Script: Finished execution for client2 at 1660832926532
*** Script: Finished execution for client3 at 1660832936533

I'm guessing this won't be possible, but just to be safe, I wanted to ask the community.

Thanks in advance for any help,

Max

[Mohith Devatte]

Hello @Max Nowak ,

you can try this script 

function getData(element,index,array) { 
    // sleep 10 seconds
    gs.sleep(10000);
    gs.info('Finished execution for ' + element + ' at ' + Date.now());
}

var arr = ['client1','client2','client3'];
for(var i=0; i<arr.length; i++)
{
getData(arr[i]);
}

Hope this helps 

MARK MY NASWER CORRECT IF IT HELPS YOU

[palanikumar]

Hi,

You are correct. The executions are sequential. It will wait for the function to execute and then go to next iteration. I don't think there is any option to run in parallel.

Thank you,

Palani