private static async Task GetEnumerableStreamBenchmarkAsync(TimeSpan timeout)
{
using (var db = new SqlLocalDB())
{
var es = new SqlEventStore(db.ConnectionString);
await es.Database.InitializeAsync();
await es.WithBulkCopyAppend().AppendAsync(GetUncommittedSource(1000, 100000));
var streamIdSet = es.GetEnumerable().Select(x => x.StreamId).Distinct().ToList();
//
var fs = new[] {
"default",
"unknown",
};
var xs = new[] {
new List <double>(),
new List <double>(),
};
for (int k = 0; k < 10; k++)
{
var i = 0;
foreach (var f in new Func <ISqlEventStore, ISqlEventStore>[] {
x => x,
})
{
var y = f(es);
var sw = new Stopwatch();
var rnd = Randomness.Create();
int n = 0;
while (sw.Elapsed < timeout)
{
var streamId = streamIdSet[rnd.Next(streamIdSet.Count)];
var minSeq = 1;
var maxSeq = minSeq + rnd.Next(100);
sw.Start();
n += y.GetEnumerableStream(streamId, minSeq, maxSeq).Count();
sw.Stop();
}
var p = n / sw.Elapsed.TotalSeconds;
xs[i].Add(p);
i++;
}
Console.Write($"{k}");
for (int j = 0; j < 2; j++)
{
var p = xs[j][k];
var fit = Tuple.Create(0d, 0d);
if (xs[j].Count > 1)
{
fit = Fit.Line(Enumerable.Range(1, xs[j].Count).Select(x => (double)x).ToArray(), xs[j].ToArray());
}
Console.Write($" | {fs[j]}: {p,9:N1} op/s {fit.Item1,9:N1}+x*{fit.Item2,9:N1}");
}
Console.WriteLine();
}
}
}
