public void roundrobin_test()
{
var sw = Stopwatch.StartNew();
var p = new RoundRobinHostPool();
p.AddHost("a", null);
p.AddHost("b", null);
p.AddHost("c", null);
//initially hosts are not dead, for testing of course.
foreach (var h in p.HostList)
{
h.Dead = false;
}
p.GetRoundRobin().Host.Should().Be("a");
p.GetRoundRobin().Host.Should().Be("b");
p.GetRoundRobin().Host.Should().Be("c");
var respA = p.GetRoundRobin();
respA.Host.Should().Be("a");
respA.MarkFailed();
var respB = p.GetRoundRobin();
respB.MarkFailed();
var respC = p.GetRoundRobin();
respC.Host.Should().Be("c");
// get again, and verify that it's still c
p.GetRoundRobin().Host.Should().Be("c");
p.GetRoundRobin().Host.Should().Be("c");
p.GetRoundRobin().Host.Should().Be("c");
var resp = p.GetRoundRobin();
resp.Should().NotBeNull();
sw.Stop();
//TOTAL TIME: 17 milliseconds
Console.WriteLine($"TOTAL TIME: {sw.Elapsed.Humanize()}");
}
public void roundrobin_test()
{
var sw = Stopwatch.StartNew();
var p = new RoundRobinHostPool();
p.AddHost("a", null);
p.AddHost("b", null);
p.AddHost("c", null);
//initially hosts are not dead, for testing of course.
foreach( var h in p.HostList )
{
h.Dead = false;
}
p.GetRoundRobin().Host.Should().Be("a");
p.GetRoundRobin().Host.Should().Be("b");
p.GetRoundRobin().Host.Should().Be("c");
var respA = p.GetRoundRobin();
respA.Host.Should().Be("a");
respA.MarkFailed();
var respB = p.GetRoundRobin();
respB.MarkFailed();
var respC = p.GetRoundRobin();
respC.Host.Should().Be("c");
// get again, and verify that it's still c
p.GetRoundRobin().Host.Should().Be("c");
p.GetRoundRobin().Host.Should().Be("c");
p.GetRoundRobin().Host.Should().Be("c");
var resp = p.GetRoundRobin();
resp.Should().NotBeNull();
sw.Stop();
//TOTAL TIME: 17 milliseconds
Console.WriteLine($"TOTAL TIME: {sw.Elapsed.Humanize()}");
}
public void bechmark_round_robin()
{
var p = new RoundRobinHostPool();
p.AddHost("a", null);
p.AddHost("b", null);
p.AddHost("c", null);
//initially hosts are not dead, for testing of course.
foreach (var h in p.HostList)
{
h.Dead = false;
}
var hitA = 0;
var hitB = 0;
var hitC = 0;
var iterations = 120000;
var threads = 5;
var sw = Stopwatch.StartNew();
var tasks = Enumerable.Range(1, threads).Select((i) =>
{
return(Task.Run(() =>
{
for (var x = 0; x < iterations; x++)
{
var h = p.GetRoundRobin();
if (h.Host == "a")
{
Interlocked.Increment(ref hitA);
}
else if (h.Host == "b")
{
Interlocked.Increment(ref hitB);
}
else
{
Interlocked.Increment(ref hitC);
}
}
}));
});
Task.WaitAll(tasks.ToArray());
sw.Stop();
var hitCounts = new Dictionary <string, long>()
{
{ "a", hitA },
{ "b", hitB },
{ "c", hitC }
};
foreach (var kvp in hitCounts)
{
Console.WriteLine($"Host {kvp.Key} hit {kvp.Value} times {((double)kvp.Value / (iterations * threads)):P}");
}
//TOTAL TIME: 60 milliseconds
Console.WriteLine($"TOTAL TIME: {sw.Elapsed.Humanize()}");
}
public void bechmark_round_robin()
{
var p = new RoundRobinHostPool();
p.AddHost("a", null);
p.AddHost("b", null);
p.AddHost("c", null);
//initially hosts are not dead, for testing of course.
foreach (var h in p.HostList)
{
h.Dead = false;
}
var hitA = 0;
var hitB = 0;
var hitC = 0;
var iterations = 120000;
var threads = 5;
var sw = Stopwatch.StartNew();
var tasks = Enumerable.Range(1, threads).Select((i) =>
{
return Task.Run(() =>
{
for( var x = 0; x < iterations; x++ )
{
var h = p.GetRoundRobin();
if( h.Host == "a" )
Interlocked.Increment(ref hitA);
else if( h.Host == "b" )
Interlocked.Increment(ref hitB);
else
Interlocked.Increment(ref hitC);
}
});
});
Task.WaitAll(tasks.ToArray());
sw.Stop();
var hitCounts = new Dictionary<string, long>()
{
{"a", hitA},
{"b", hitB},
{"c", hitC}
};
foreach( var kvp in hitCounts )
{
Console.WriteLine($"Host {kvp.Key} hit {kvp.Value} times {((double)kvp.Value / (iterations * threads)):P}");
}
//TOTAL TIME: 60 milliseconds
Console.WriteLine($"TOTAL TIME: {sw.Elapsed.Humanize()}");
}
