Benchmark result

[vonzshik]

Run on local machine against localhost, CC @roji.

BenchmarkDotNet=v0.12.1, OS=Windows 10.0.19042
AMD Ryzen 5 2400G with Radeon Vega Graphics, 1 CPU, 8 logical and 4 physical cores
.NET Core SDK=6.0.100-preview.5.21302.13
  [Host]     : .NET Core 5.0.7 (CoreCLR 5.0.721.25508, CoreFX 5.0.721.25508), X64 RyuJIT
  DefaultJob : .NET Core 5.0.7 (CoreCLR 5.0.721.25508, CoreFX 5.0.721.25508), X64 RyuJIT

Method	NumRows	Mean	Error	StdDev	Median
ReadNpgsql	1	131.46 μs	2.530 μs	2.366 μs	131.83 μs
ReadRawSimple	1	98.11 μs	1.867 μs	2.361 μs	97.71 μs
ReadRawExtended	1	108.65 μs	2.162 μs	3.729 μs	108.15 μs
ReadPipeRawSimple	1	133.02 μs	1.478 μs	1.154 μs	132.70 μs
ReadPipeRawExtended	1	145.94 μs	2.850 μs	5.067 μs	143.88 μs
ReadNpgsql	10	128.97 μs	3.334 μs	9.725 μs	132.72 μs
ReadRawSimple	10	102.80 μs	1.218 μs	1.139 μs	103.06 μs
ReadRawExtended	10	111.44 μs	2.213 μs	2.799 μs	110.05 μs
ReadPipeRawSimple	10	136.85 μs	0.889 μs	0.742 μs	136.79 μs
ReadPipeRawExtended	10	143.34 μs	1.009 μs	0.788 μs	143.42 μs
ReadNpgsql	100	143.84 μs	4.226 μs	12.126 μs	139.69 μs
ReadRawSimple	100	116.69 μs	1.925 μs	2.881 μs	115.51 μs
ReadRawExtended	100	137.01 μs	2.718 μs	5.965 μs	137.29 μs
ReadPipeRawSimple	100	175.82 μs	2.547 μs	3.400 μs	174.75 μs
ReadPipeRawExtended	100	186.55 μs	3.653 μs	5.240 μs	186.14 μs
ReadNpgsql	1000	327.54 μs	6.301 μs	7.739 μs	325.08 μs
ReadRawSimple	1000	298.17 μs	5.943 μs	9.252 μs	296.29 μs
ReadRawExtended	1000	298.39 μs	5.364 μs	5.509 μs	299.99 μs
ReadPipeRawSimple	1000	485.66 μs	9.494 μs	13.309 μs	484.07 μs
ReadPipeRawExtended	1000	501.55 μs	9.650 μs	13.528 μs	497.49 μs