StackExchange.Redis Profiling Group commands based on issuing thread

Example

ConnectionMultiplexer conn = /* initialization */;
var profiler = new ToyProfiler();

conn.RegisterProfiler(profiler);

var threads = new List<Thread>();

var perThreadTimings = new ConcurrentDictionary<Thread, List<IProfiledCommand>>();

for (var i = 0; i < 16; i++)
{
    var db = conn.GetDatabase(i);

    var thread =
        new Thread(
            delegate()
            {
                var threadTasks = new List<Task>();

                conn.BeginProfiling(Thread.CurrentThread);

                for (var j = 0; j < 1000; j++)
                {
                    var task = db.StringSetAsync("" + j, "" + j);
                    threadTasks.Add(task);
                }

                Task.WaitAll(threadTasks.ToArray());

                perThreadTimings[Thread.CurrentThread] = conn.FinishProfiling(Thread.CurrentThread).ToList();
            }
        );

    profiler.Contexts[thread] = thread;

    threads.Add(thread);
}

threads.ForEach(thread => thread.Start());
threads.ForEach(thread => thread.Join());

perThreadTimings ends up with 16 entries of 1,000 IProfilingCommands, keyed by the Thread that issued them.