public void PriorityChannelBenchmarkReadFirst()
{
var count = 100_000_000;
var pc = new PriorityChannel <long>();
var rt = Task.Run(() =>
{
using (Benchmark.Run("Read", count, true))
{
var c = 0;
while (c < count)
{
pc.TryTake(out var i, out var isPriority);
//if (i >> 3 == 0 && !isPriority)
//{
// Assert.Fail("i >> 8 == 0 && !isPriority");
//}
c++;
}
}
});
Thread.Sleep(100);
var wt = Task.Run(() =>
{
using (Benchmark.Run("Write", count, true))
{
for (var i = 0; i < count; i++)
{
pc.TryAdd(i); //, i >> 3 == 0);
}
}
});
rt.Wait();
wt.Wait();
Benchmark.Dump();
}
public void PriorityChannelBenchmarkWriteThenReadNoWait()
{
var count = 200_000_000;
var pc = new PriorityChannel <ushort>();
var wt = Task.Run(() =>
{
using (Benchmark.Run("Write", count, true))
{
for (var i = 0; i < count; i++)
{
pc.TryAdd((ushort)(i % ushort.MaxValue)); //, i >> 3 == 0);
}
}
});
wt.Wait();
var rt = Task.Run(() =>
{
using (Benchmark.Run("Read", count, true))
{
var c = 0;
while (c < count)
{
pc.TryTake(out var i, out var isPriority);
//if (i >> 3 == 0 && !isPriority)
//{
// Assert.Fail("i >> 8 == 0 && !isPriority");
//}
c++;
}
}
});
rt.Wait();
Benchmark.Dump();
}
public void PriorityChannelBenchmarkSlowWriterTryThenBlock()
{
var count = 1_000_000;
var cts = new CancellationTokenSource();
var pc = new PriorityChannel <int>(cts.Token);
var wt = Task.Run(() =>
{
using (Benchmark.Run("Write", count, true))
{
for (var i = 0; i < count; i++)
{
var priority = i % 2 == 0;
pc.TryAdd(i, priority);
if (i % 10 == 0)
{
if (!Thread.Yield())
{
Thread.Sleep(0);
}
}
else
{
Thread.SpinWait(10);
}
}
}
});
var rt = Task.Run(() =>
{
using (Benchmark.Run("Read", count, true))
{
var c = 0;
var spinner = new SpinWait();
while (c < count)
{
if (!pc.TryTake(out var i, out var isPriority))
{
if (!pc.TryTake(out i, out isPriority))
{
// still no new notifications, retry toggle after some wait
spinner.SpinOnce();
if (spinner.NextSpinWillYield)
{
spinner.Reset();
if (!Thread.Yield())
{
Thread.Sleep(0);
}
}
continue;
}
}
//if (i >> 3 == 0 && !isPriority)
//{
// Assert.Fail("i >> 8 == 0 && !isPriority");
//}
c++;
}
}
});
rt.Wait();
wt.Wait();
Benchmark.Dump();
}