Benchmarks for dotnet/runtime#127410 (for @EgorBo)

[EgorBot]

Processing benchmark request from PR dotnet/runtime#127410.

Targets: ubuntu24_azure_turin, macos26_helix_arm64
Commits: main;PR_127410

• ubuntu24_azure_turin: live logs
• macos26_helix_arm64: live logs

Results will be posted here once they are ready.

[EgorBot]

Results for macos26_helix_arm64

@EgorBo

BenchmarkDotNet v0.15.8, macOS Sequoia 15.4.1 (24E263) [Darwin 24.4.0]
Apple M2, 1 CPU, 8 logical and 8 physical cores
.NET SDK 11.0.100-preview.5.26226.111
  [Host]     : .NET 10.0.7 (10.0.7, 10.0.726.21808), Arm64 RyuJIT armv8.0-a

Method	Toolchain	Size	Mean	Error	Ratio
NextBytes_Span	PR #127410**	1	3.113 ns	0.0044 ns	1.00
NextBytes_Span	main	1	1.680 ns	0.0016 ns	0.54
NextBytes_Array	PR #127410	1	3.415 ns	0.0067 ns	1.00
NextBytes_Array	main	1	1.757 ns	0.0504 ns	0.51
NextBytes_Span	PR #127410**	3	3.208 ns	0.0027 ns	1.00
NextBytes_Span	main	3	2.210 ns	0.0521 ns	0.69
NextBytes_Array	PR #127410	3	3.509 ns	0.0384 ns	1.00
NextBytes_Array	main	3	2.346 ns	0.0344 ns	0.67
NextBytes_Span	PR #127410**	4	3.097 ns	0.0140 ns	1.00
NextBytes_Span	main	4	2.480 ns	0.0503 ns	0.80
NextBytes_Array	PR #127410	4	3.346 ns	0.0686 ns	1.00
NextBytes_Array	main	4	2.617 ns	0.0021 ns	0.78
NextBytes_Span	PR #127410**	7	3.083 ns	0.0394 ns	1.00
NextBytes_Span	main	7	3.308 ns	0.0040 ns	1.07
NextBytes_Array	PR #127410	7	3.346 ns	0.0670 ns	1.00
NextBytes_Array	main	7	3.477 ns	0.0031 ns	1.04
NextBytes_Span	PR #127410**	8	1.782 ns	0.0041 ns	1.00
NextBytes_Span	main	8	1.609 ns	0.0419 ns	0.90
NextBytes_Array	PR #127410	8	2.047 ns	0.0483 ns	1.00
NextBytes_Array	main	8	1.610 ns	0.0506 ns	0.79
NextBytes_Span	PR #127410**	15	3.515 ns	0.0885 ns	1.00
NextBytes_Span	main	15	3.727 ns	0.0028 ns	1.06
NextBytes_Array	PR #127410	15	3.791 ns	0.0718 ns	1.00
NextBytes_Array	main	15	4.050 ns	0.0044 ns	1.07
NextBytes_Span	PR #127410**	16	2.571 ns	0.0044 ns	1.00
NextBytes_Span	main	16	2.585 ns	0.0018 ns	1.01
NextBytes_Array	PR #127410	16	2.640 ns	0.0418 ns	1.00
NextBytes_Array	main	16	2.526 ns	0.0019 ns	0.96
NextBytes_Span	PR #127410**	31	4.851 ns	0.0740 ns	1.00
NextBytes_Span	main	31	5.323 ns	0.0206 ns	1.10
NextBytes_Array	PR #127410	31	4.997 ns	0.0034 ns	1.00
NextBytes_Array	main	31	5.337 ns	0.0043 ns	1.07
NextBytes_Span	PR #127410**	64	7.926 ns	0.0095 ns	1.00
NextBytes_Span	main	64	7.821 ns	0.0080 ns	0.99
NextBytes_Array	PR #127410	64	7.886 ns	0.0086 ns	1.00
NextBytes_Array	main	64	7.880 ns	0.0053 ns	1.00
NextBytes_Span	PR #127410**	256	28.481 ns	0.0308 ns	1.00
NextBytes_Span	main	256	28.347 ns	0.0209 ns	1.00
NextBytes_Array	PR #127410	256	28.456 ns	0.0484 ns	1.00
NextBytes_Array	main	256	28.551 ns	0.4704 ns	1.00
NextBytes_Span	PR #127410**	1024	113.739 ns	0.1402 ns	1.00
NextBytes_Span	main	1024	113.650 ns	0.0768 ns	1.00
NextBytes_Array	PR #127410	1024	113.929 ns	0.2054 ns	1.00
NextBytes_Array	main	1024	113.245 ns	0.1406 ns	0.99
NextBytes_Span	PR #127410**	16384	1,825.721 ns	1.3112 ns	1.00
NextBytes_Span	main	16384	1,825.932 ns	1.4122 ns	1.00
NextBytes_Array	PR #127410	16384	1,825.526 ns	1.2488 ns	1.00
NextBytes_Array	main	16384	1,826.190 ns	2.4369 ns	1.00

Full logs

[EgorBot]

Results for ubuntu24_azure_turin

@EgorBo

BenchmarkDotNet v0.15.8, Linux Ubuntu 24.04.4 LTS (Noble Numbat)
AMD EPYC 9V45 2.60GHz, 1 CPU, 8 logical and 4 physical cores
.NET SDK 11.0.100-preview.5.26226.111
  [Host]     : .NET 10.0.7 (10.0.7, 10.0.726.21808), X64 RyuJIT x86-64-v4

Method	Toolchain	Size	Mean	Error	Ratio
NextBytes_Span	PR #127410**	1	4.3155 ns	0.0281 ns	1.00
NextBytes_Span	main	1	1.5220 ns	0.0037 ns	0.35
NextBytes_Array	PR #127410	1	3.8391 ns	0.0077 ns	1.00
NextBytes_Array	main	1	1.3452 ns	0.0109 ns	0.35
NextBytes_Span	PR #127410**	3	4.4139 ns	0.0219 ns	1.00
NextBytes_Span	main	3	2.0511 ns	0.0153 ns	0.46
NextBytes_Array	PR #127410	3	3.9001 ns	0.0163 ns	1.00
NextBytes_Array	main	3	1.8280 ns	0.0139 ns	0.47
NextBytes_Span	PR #127410**	4	4.1955 ns	0.1062 ns	1.00
NextBytes_Span	main	4	2.0897 ns	0.0575 ns	0.50
NextBytes_Array	PR #127410	4	3.7005 ns	0.0933 ns	1.00
NextBytes_Array	main	4	2.3396 ns	0.0640 ns	0.63
NextBytes_Span	PR #127410**	7	4.0289 ns	0.0974 ns	1.00
NextBytes_Span	main	7	2.7189 ns	0.0138 ns	0.68
NextBytes_Array	PR #127410	7	3.5632 ns	0.0206 ns	1.00
NextBytes_Array	main	7	2.6011 ns	0.0204 ns	0.73
NextBytes_Span	PR #127410**	8	2.1601 ns	0.0650 ns	1.00
NextBytes_Span	main	8	1.1440 ns	0.0119 ns	0.53
NextBytes_Array	PR #127410	8	1.9217 ns	0.0290 ns	1.00
NextBytes_Array	main	8	0.9646 ns	0.0137 ns	0.50
NextBytes_Span	PR #127410**	15	3.8387 ns	0.0243 ns	1.00
NextBytes_Span	main	15	3.0898 ns	0.0047 ns	0.80
NextBytes_Array	PR #127410	15	3.5242 ns	0.0068 ns	1.00
NextBytes_Array	main	15	3.2671 ns	0.0212 ns	0.93
NextBytes_Span	PR #127410**	16	2.5086 ns	0.0609 ns	1.00
NextBytes_Span	main	16	1.3636 ns	0.0110 ns	0.54
NextBytes_Array	PR #127410	16	2.3221 ns	0.0198 ns	1.00
NextBytes_Array	main	16	2.1020 ns	0.0191 ns	0.91
NextBytes_Span	PR #127410**	31	4.3904 ns	0.0305 ns	1.00
NextBytes_Span	main	31	4.6849 ns	0.0209 ns	1.07
NextBytes_Array	PR #127410	31	4.3427 ns	0.0210 ns	1.00
NextBytes_Array	main	31	4.6078 ns	0.0205 ns	1.06
NextBytes_Span	PR #127410**	64	6.7051 ns	0.0305 ns	1.00
NextBytes_Span	main	64	5.2747 ns	0.0230 ns	0.79
NextBytes_Array	PR #127410	64	6.6173 ns	0.0103 ns	1.00
NextBytes_Array	main	64	5.2299 ns	0.0193 ns	0.79
NextBytes_Span	PR #127410**	256	26.2793 ns	0.5110 ns	1.00
NextBytes_Span	main	256	21.7885 ns	0.1320 ns	0.83
NextBytes_Array	PR #127410	256	29.4072 ns	0.3647 ns	1.00
NextBytes_Array	main	256	21.4919 ns	0.4416 ns	0.73
NextBytes_Span	PR #127410**	1024	102.5292 ns	0.5437 ns	1.00
NextBytes_Span	main	1024	85.5037 ns	0.7044 ns	0.83
NextBytes_Array	PR #127410	1024	101.3760 ns	0.4488 ns	1.00
NextBytes_Array	main	1024	85.5620 ns	0.2039 ns	0.84
NextBytes_Span	PR #127410**	16384	1,573.4378 ns	7.7024 ns	1.00
NextBytes_Span	main	16384	1,352.4071 ns	6.5567 ns	0.86
NextBytes_Array	PR #127410	16384	1,571.5253 ns	4.6867 ns	1.00
NextBytes_Array	main	16384	1,371.2578 ns	4.1132 ns	0.87

Full logs