Compiling an ItoProcess

Question

I am a new mathematica user. I am trying to use the Compile command to speed up my RandomFunction output. The code looks like this:

test2 = Compile[{{ab, _Real}}, 
   Module[{counts, values}, counts = ab + 1;
    proc = 
     ItoProcess[{\[DifferentialD]x[
          t] == -x[t]  \[DifferentialD]t + \[DifferentialD]w[t]}, 
      x[t], {x, 0.0}, t, w \[Distributed] WienerProcess[]];
    result = RandomFunction[proc, {0, ab, 0.01}];
    values = result["Values"];
    values]];
abc = test2[1];

However, this gives me the following errors: CompiledFunction::cfse: Compiled expression {0.,-0.0293342,-0.113584,-0.18336,-0.183176,-0.1791,-0.291471,-0.256793,-0.177335,-0.0997472,<<91>>} should be a machine-size real number. CompiledFunction::cfex: Could not complete external evaluation at instruction 5; proceeding with uncompiled evaluation.

I don't understand the issues. Is the function RandomFunction even compatible with Compile? Please help.