private void logDelta(String name, long start, MethodInvokerResult result) {
    long delta = TimeUnit.NANOSECONDS.toMillis(System.nanoTime() - start);
    logger.info("Got result: {} from {} (took {} ms)", result, name, delta);
  }
Called remotely by the master controller to cause the client to execute the instance method on
the object. Does this synchronously (does not spawn a thread). This method is used by the unit
test framework, dunit.

@param target the object to execute the method on
@param methodName the name of the method to execute
@return the result of method execution
geode-dunit/src/main/java/org/apache/geode/test/dunit/internal/RemoteDUnitVM.java