dotnet-regex-benchmarks

> dotnet run -c Release -f netcoreapp3.1 --runtimes net48 netcoreapp3.1

Results

BenchmarkDotNet=v0.12.0, OS=Windows 10.0.18362
Intel Core i7-8550U CPU 1.80GHz (Kaby Lake R), 1 CPU, 8 logical and 4 physical cores
.NET Core SDK=3.1.100
  [Host]        : .NET Core 3.1.0 (CoreCLR 4.700.19.56402, CoreFX 4.700.19.56404), X64 RyuJIT
  .NET Core x64 : .NET Core 3.1.0 (CoreCLR 4.700.19.56402, CoreFX 4.700.19.56404), X64 RyuJIT
  LegacyJitX86  : .NET Framework 4.8 (4.8.4042.0), X86 LegacyJIT
  RyuJitX64     : .NET Framework 4.8 (4.8.4042.0), X64 RyuJIT

Single

Method	Job	Jit	Platform	Toolchain	Mean	Error	StdDev	Gen 0	Gen 1	Gen 2	Allocated
Normal	.NET Core x64	RyuJit	X64	.NET Core x64	1.799 us	0.0360 us	0.0658 us	0.7629	-	-	3.12 KB
Compiled	.NET Core x64	RyuJit	X64	.NET Core x64	1,134.949 us	6.3422 us	5.6222 us	1.9531	-	-	12.69 KB
Normal	LegacyJitX86	LegacyJit	X86	net48	2.380 us	0.0472 us	0.0505 us	0.7172	-	-	2.94 KB
Compiled	LegacyJitX86	LegacyJit	X86	net48	631.919 us	9.4512 us	8.8406 us	1.9531	0.9766	-	9.41 KB
Normal	RyuJitX64	RyuJit	X64	net48	2.076 us	0.0144 us	0.0112 us	1.1139	-	-	4.57 KB
Compiled	RyuJitX64	RyuJit	X64	net48	1,167.988 us	22.9845 us	34.4021 us	1.9531	-	-	14.37 KB

1,000

Method	Job	Jit	Platform	Toolchain	Mean	Error	StdDev	Median	Gen 0	Gen 1	Gen 2	Allocated
Normal	.NET Core x64	RyuJit	X64	.NET Core x64	174.0 us	3.47 us	7.61 us	171.0 us	50.2930	-	-	206.04 KB
Compiled	.NET Core x64	RyuJit	X64	.NET Core x64	2,039.4 us	40.86 us	114.59 us	2,038.8 us	52.7344	1.9531	-	215.63 KB
Normal	LegacyJitX86	LegacyJit	X86	net48	282.0 us	10.30 us	30.06 us	269.0 us	30.2734	-	-	124.09 KB
Compiled	LegacyJitX86	LegacyJit	X86	net48	1,000.6 us	20.06 us	28.12 us	999.3 us	31.2500	-	-	130.78 KB
Normal	RyuJitX64	RyuJit	X64	net48	250.2 us	9.52 us	27.92 us	256.2 us	50.7813	-	-	208.09 KB
Compiled	RyuJitX64	RyuJit	X64	net48	1,361.3 us	25.39 us	26.07 us	1,369.7 us	52.7344	1.9531	-	218.27 KB

100,000

Method	Job	Jit	Platform	Toolchain	Mean	Error	StdDev	Gen 0	Gen 1	Gen 2	Allocated
Normal	.NET Core x64	RyuJit	X64	.NET Core x64	17.08 ms	0.341 ms	0.466 ms	4968.7500	-	-	19.84 MB
Compiled	.NET Core x64	RyuJit	X64	.NET Core x64	16.94 ms	0.245 ms	0.229 ms	4968.7500	-	-	19.85 MB
Normal	LegacyJitX86	LegacyJit	X86	net48	20.29 ms	0.402 ms	0.683 ms	2937.5000	-	-	11.85 MB
Compiled	LegacyJitX86	LegacyJit	X86	net48	17.47 ms	0.345 ms	0.751 ms	2937.5000	31.2500	-	11.85 MB
Normal	RyuJitX64	RyuJit	X64	net48	19.45 ms	0.379 ms	0.673 ms	4968.7500	-	-	19.9 MB
Compiled	RyuJitX64	RyuJit	X64	net48	16.07 ms	0.319 ms	0.777 ms	4968.7500	-	-	19.91 MB

1,000,000

Method	Job	Jit	Platform	Toolchain	Mean	Error	StdDev	Median	Gen 0	Gen 1	Gen 2	Allocated
Normal	.NET Core x64	RyuJit	X64	.NET Core x64	170.3 ms	6.86 ms	8.17 ms	166.6 ms	49500.0000	-	-	198.37 MB
Compiled	.NET Core x64	RyuJit	X64	.NET Core x64	145.0 ms	2.86 ms	6.50 ms	144.0 ms	49500.0000	-	-	198.38 MB
Normal	LegacyJitX86	LegacyJit	X86	net48	203.5 ms	4.02 ms	6.60 ms	202.3 ms	29333.3333	-	-	118.43 MB
Compiled	LegacyJitX86	LegacyJit	X86	net48	173.8 ms	3.36 ms	4.93 ms	172.5 ms	29500.0000	-	-	118.44 MB
Normal	RyuJitX64	RyuJit	X64	net48	207.7 ms	4.46 ms	13.07 ms	203.7 ms	49666.6667	-	-	198.95 MB
Compiled	RyuJitX64	RyuJit	X64	net48	141.9 ms	1.92 ms	1.80 ms	142.2 ms	49500.0000	-	-	198.96 MB