private static void Test2()
{
var sw = Stopwatch.StartNew();
var count = 100_000_000L;
var ts = new List <Task>();
for (var i = 0; i < Environment.ProcessorCount; i++)
{
ts.Add(Task.Run(() =>
{
var f = new FlowId();
for (var i = 0; i < count; i++)
{
var id = f.NewId();
}
}));
}
Task.WaitAll(ts.ToArray());
sw.Stop();
count *= ts.Count;
XTrace.WriteLine("生成 {0:n0}，耗时 {1}，速度 {2:n0}tps", count, sw.Elapsed, count * 1000 / sw.ElapsedMilliseconds);
}
public void Benchmark()
{
var sw = Stopwatch.StartNew();
var count = 10_000_000L;
var ts = new List <Task>();
for (var i = 0; i < Environment.ProcessorCount; i++)
{
ts.Add(Task.Run(() =>
{
var f = new FlowId {
BlockOnSampleTime = false
};
for (var i = 0; i < count; i++)
{
var id = f.NewId();
}
}));
}
Task.WaitAll(ts.ToArray());
sw.Stop();
Assert.True(sw.ElapsedMilliseconds < 10_000);
count *= ts.Count;
XTrace.WriteLine("生成 {0:n0}，耗时 {1}，速度 {2:n0}tps", count, sw.Elapsed, count * 1000 / sw.ElapsedMilliseconds);
}
public void NewId()
{
var f = new FlowId();
var id = f.NewId();
var time = id >> 22;
var tt = f.StartTimestamp.AddMilliseconds(time);
Assert.True(tt <= DateTime.Now);
var wid = (id >> 12) & 0x3FF;
Assert.Equal(f.WorkerId, wid);
var seq = id & 0x0FFF;
Assert.Equal(f.Sequence, seq);
// 时间转编号
var id2 = f.GetId(tt);
Assert.Equal(id >> 22, id2 >> 22);
// 分析
var rs = f.TryParse(id, out var t, out var w, out var s);
Assert.True(rs);
Assert.Equal(tt, t);
Assert.Equal(wid, w);
Assert.Equal(seq, s);
}
public void ValidRepeat()
{
var sw = Stopwatch.StartNew();
var ws = new ConcurrentBag <Int32>();
var repeat = new ConcurrentBag <Int64>();
var hash = new ConcurrentHashSet <Int64>();
var ts = new List <Task>();
for (var k = 0; k < 10; k++)
{
ts.Add(Task.Run(() =>
{
var f = new FlowId {
StartTimestamp = new DateTime(2020, 1, 1), WorkerId = Rand.Next() & 0x3FF
};
ws.Add(f.WorkerId);
for (var i = 0; i < 100_000; i++)
{
var id = f.NewId();
if (!hash.TryAdd(id))
{
repeat.Add(id);
}
}
}));
}
Task.WaitAll(ts.ToArray());
sw.Stop();
Assert.True(sw.ElapsedMilliseconds < 10_000);
var count = repeat.Count;
Assert.Equal(0, count);
}
