// TODO: look into warming up the server, this client for accuracy.
void runPubSubLatency(string testName, long testCount, long testSize)
{
Object subcriberLock = new Object();
bool subscriberDone = false;
List <long> measurements = new List <long>((int)testCount);
byte[] payload = generatePayload(testSize);
ConnectionFactory cf = new ConnectionFactory();
var opts = ConnectionFactory.GetDefaultOptions();
opts.Url = url;
if (creds != null)
{
opts.SetUserCredentials(creds);
}
IConnection subConn = cf.CreateConnection(opts);
IConnection pubConn = cf.CreateConnection(opts);
Stopwatch sw = new Stopwatch();
IAsyncSubscription subs = subConn.SubscribeAsync(subject, (sender, args) =>
{
sw.Stop();
measurements.Add(sw.ElapsedTicks);
lock (subcriberLock)
{
Monitor.Pulse(subcriberLock);
subscriberDone = true;
}
});
subConn.Flush();
for (int i = 0; i < testCount; i++)
{
lock (subcriberLock)
{
subscriberDone = false;
}
sw.Reset();
sw.Start();
pubConn.Publish(subject, payload);
pubConn.Flush();
// block on the subscriber finishing - we do not want any
// overlap in measurements.
lock (subcriberLock)
{
if (!subscriberDone)
{
Monitor.Wait(subcriberLock);
}
}
}
double latencyAvg = measurements.Average();
double stddev = Math.Sqrt(
measurements.Average(
v => Math.Pow((double)v - latencyAvg, 2)
)
);
// TODO: fix accuracy - trim out outliers, etc.
Console.WriteLine(
"{0} (us)\t{1} msgs, {2:F2} avg, {3:F2} min, {4:F2} max, {5:F2} stddev",
testName,
testCount,
convertTicksToMicros(latencyAvg),
convertTicksToMicros(measurements.Min()),
convertTicksToMicros(measurements.Max()),
convertTicksToMicros(stddev));
pubConn.Close();
subConn.Close();
}
void runPubSub(String testName, long testCount, long testSize)
{
Object pubSubLock = new Object();
bool finished = false;
int subCount = 0;
byte[] payload = generatePayload(testSize);
ConnectionFactory cf = new ConnectionFactory();
Options o = ConnectionFactory.GetDefaultOptions();
o.Url = url;
o.SubChannelLength = 10000000;
if (creds != null)
{
o.SetUserCredentials(creds);
}
o.AsyncErrorEventHandler += (sender, obj) =>
{
Console.WriteLine("Error: " + obj.Error);
};
IConnection subConn = cf.CreateConnection(o);
IConnection pubConn = cf.CreateConnection(o);
IAsyncSubscription s = subConn.SubscribeAsync(subject, (sender, args) =>
{
subCount++;
if (subCount == testCount)
{
lock (pubSubLock)
{
finished = true;
Monitor.Pulse(pubSubLock);
}
}
});
s.SetPendingLimits(10000000, 1000000000);
subConn.Flush();
Stopwatch sw = Stopwatch.StartNew();
for (int i = 0; i < testCount; i++)
{
pubConn.Publish(subject, payload);
}
pubConn.Flush();
lock (pubSubLock)
{
if (!finished)
{
Monitor.Wait(pubSubLock);
}
}
sw.Stop();
PrintResults(testName, sw, testCount, testSize);
pubConn.Close();
subConn.Close();
}