public void Test3()
{
XTrace.WriteLine("低精度1");
var count = 1_000_000;
var bf = new BloomFilter(count / 10);
var rs1 = 0;
var rs2 = 0;
for (var i = 0; i < count; i++)
{
var key = $"ip_{i}";
if (bf.Get(key))
{
rs1++;
}
else
{
bf.Set(key);
rs2++;
}
}
var p1 = (Double)rs1 / count;
var p2 = (Double)rs2 / count;
XTrace.WriteLine($" 存在：{rs1} {p1:p8}");
XTrace.WriteLine($"不存在：{rs2} {p2:p8}");
//Assert.True(p1 < 0.06);
//Assert.True(p2 > 0.94);
var buf = bf.GetBytes();
XTrace.WriteLine("bf.Length={0:n0}", buf.Length);
var str = bf.GetString();
XTrace.WriteLine("str.Length={0:n0}", str.Length);
}
public void Test1()
{
XTrace.WriteLine("高精度1");
var count = 10_000_000;
//var bf = new BloomFilter(count, 0.0001);
var bf = new BloomFilter(count * 32);
var rs1 = 0;
var rs2 = 0;
for (var i = 0; i < count; i++)
{
var key = $"ip_{i}";
if (bf.Get(key))
{
rs1++;
}
else
{
bf.Set(key);
rs2++;
}
}
var p1 = (Double)rs1 / count;
var p2 = (Double)rs2 / count;
XTrace.WriteLine($" 存在：{rs1} {p1:p8}");
XTrace.WriteLine($"不存在：{rs2} {p2:p8}");
Assert.True(p1 < 0.00004);
Assert.True(p2 > 0.99996);
var buf = bf.GetBytes();
XTrace.WriteLine("bf.Length={0:n0}", buf.Length);
}
