IRIS Native API for .NET performance issue

Calling @Bob Kuszewski.

I think we need a bit more info about your data structure and your environment. 

I built the following little program on my mac with .NET 5  and it runs really fast (reported as 0 ms).  The data structure in my example, as you can see, is incredibly simple, so that might be the source of performance differences.  I'm also running on localhost, which could be different on your setup.

 

using System;
using InterSystems.Data.IRISClient;
using InterSystems.Data.IRISClient.ADO;

public class IRISNative
{
    public static void Main(String[] args) 
    {
        try {
            IRISConnection conn = new IRISConnection();
            conn.ConnectionString = "Server=localhost; Port=1972; Namespace=User; Password=...; User ID=...; SharedMemory=false; logfile=./dbnative.log";
            conn.Open();

            IRIS iris = IRIS.CreateIRIS(conn);

            Console.WriteLine("[1. Populating the data]");
            string global = "^testGlobal";
            object[] Subs = new object[1];
            Subs[0] = "node1";

            var watch = new System.Diagnostics.Stopwatch();
            watch.Start();
            for (var i=0; i<50; i++) {
                iris.Set(i, global, Subs[0], "node"+i);
            }
            watch.Stop();
            Console.WriteLine($"Execution Time: {watch.ElapsedMilliseconds} ms");

            Console.WriteLine("[2. Querying the data]");
            watch = new System.Diagnostics.Stopwatch();
            watch.Start();
            IRISIterator iter = iris.GetIRISIterator(global, Subs);
            foreach (var item in iter)
            {
                Console.WriteLine((string)(iter.CurrentSubscript));
            }
            watch.Stop();
            Console.WriteLine($"Execution Time: {watch.ElapsedMilliseconds} ms");

            iris.Close();
            conn.Close();
        }
        catch (Exception ex)
        {
            Console.WriteLine(ex.Message);
        }
    }
}