Benchmarks give inconsistent memory results

[petarpetrovt]

Every run benchmarks give difference memory allocated results.
Benchmarks should not allocate any memory.

BenchmarkDotNet similar issues

• 1599
• 1542

Example

Method	Job	Runtime	Length	Count	Mean	Error	StdDev	Gen 0	Gen 1	Gen 2	Allocated
BoseNelson_Comparable	.NET Core 3.1	.NET Core 3.1	2	110000000	269.2 ms	1.36 ms	1.28 ms	-	-	-	1408 B
BoseNelson_Branchless	.NET Core 3.1	.NET Core 3.1	2	110000000	120.0 ms	0.44 ms	0.41 ms	-	-	-	-

Method	Job	Runtime	Length	Count	Mean	Error	StdDev	Gen 0	Gen 1	Gen 2	Allocated
BoseNelson_Comparable	.NET Core 3.1	.NET Core 3.1	2	110000000	270.2 ms	0.86 ms	0.81 ms	-	-	-	1384 B
BoseNelson_Branchless	.NET Core 3.1	.NET Core 3.1	2	110000000	120.6 ms	2.40 ms	2.24 ms	-	-	-	-