thread-calculation

How to run

dotnet run -c Release

Legends

• size : Value of the 'size' parameter
• Mean : Arithmetic mean of all measurements
• Error : Half of 99.9% confidence interval
• StdDev : Standard deviation of all measurements
• 1 us : 1 Microsecond (0.000001 sec)

MBP 14 M3 Max (.net 8 ARM)

BenchmarkDotNet=v0.13.2, OS=macOS 14.3 (23D56) [Darwin 23.3.0] Apple M3 Max, 1 CPU, 14 logical and 14 physical cores .NET SDK=8.0.101 [Host] : .NET 7.0.0 (7.0.22.51805), Arm64 RyuJIT AdvSIMD DefaultJob : .NET 7.0.0 (7.0.22.51805), Arm64 RyuJIT AdvSIMD

Method	size	Mean	Error	StdDev
Simple	10000	37.50 us	0.139 us	0.116 us
Parallel	10000	53.57 us	0.936 us	0.875 us
Multithread	10000	557.83 us	11.110 us	12.795 us
Simple	100000	537.69 us	4.615 us	4.316 us
Parallel	100000	532.00 us	2.527 us	2.363 us
Multithread	100000	1,111.08 us	6.503 us	6.083 us
Simple	1000000	5,552.16 us	21.938 us	19.447 us
Parallel	1000000	5,612.27 us	65.829 us	61.576 us
Multithread	1000000	5,325.02 us	71.546 us	66.924 us

MBP 13 M1 (.net 7 ARM)

BenchmarkDotNet=v0.13.2, OS=macOS 13.0.1 (22A400) [Darwin 22.1.0] Apple M1, 1 CPU, 8 logical and 8 physical cores .NET SDK=7.0.100

• [Host] : .NET 7.0.0 (7.0.22.51805), Arm64 RyuJIT AdvSIMD
• DefaultJob : .NET 7.0.0 (7.0.22.51805), Arm64 RyuJIT AdvSIMD

Method	size	Mean	Error	StdDev
Simple	10000	55.07 us	0.116 us	0.097 us
Parallel	10000	79.76 us	1.148 us	1.018 us
Multithread	10000	641.74 us	3.992 us	3.734 us
Simple	100000	588.84 us	1.855 us	1.735 us
Parallel	100000	768.66 us	7.423 us	6.943 us
Multithread	100000	1,335.59 us	25.898 us	30.830 us
Simple	1000000	5,890.64 us	52.200 us	46.274 us
Parallel	1000000	6,459.44 us	10.271 us	9.608 us
Multithread	1000000	6,437.84 us	32.261 us	30.177 us

MBP 13 M1 (.net 5)

BenchmarkDotNet=v0.13.0, OS=macOS Big Sur 11.4 (20F71) [Darwin 20.5.0] Apple M1 2.40GHz, 1 CPU, 8 logical and 8 physical cores .NET SDK=5.0.300

• [Host] : .NET 5.0.6 (5.0.621.22011), X64 RyuJIT
• DefaultJob : .NET 5.0.6 (5.0.621.22011), X64 RyuJIT

Method	size	Mean	Error	StdDev
Simple	10000	212.3 us	1.30 us	1.22 us
Parallel	10000	226.0 us	1.92 us	1.80 us
Multithread	10000	1,028.2 us	9.79 us	9.16 us
Simple	100000	2,234.0 us	12.43 us	11.62 us
Parallel	100000	1,671.0 us	8.77 us	8.20 us
Multithread	100000	2,316.6 us	12.74 us	11.92 us
Simple	1000000	20,983.8 us	136.05 us	120.61 us
Parallel	1000000	13,357.5 us	19.21 us	17.03 us
Multithread	1000000	15,824.2 us	113.57 us	100.68 us

MBP 13 i5 2019

BenchmarkDotNet=v0.13.0, OS=macOS Big Sur 11.4 (20F71) [Darwin 20.5.0] Intel Core i5-8257U CPU 1.40GHz (Coffee Lake), 1 CPU, 8 logical and 4 physical cores .NET SDK=5.0.201

• [Host] : .NET 5.0.4 (5.0.421.11614), X64 RyuJIT
• DefaultJob : .NET 5.0.4 (5.0.421.11614), X64 RyuJIT

Method	size	Mean	Error	StdDev
Simple	10000	175.2 us	0.76 us	0.72 us
Parallel	10000	190.4 us	3.73 us	5.23 us
Multithread	10000	621.5 us	2.93 us	2.45 us
Simple	100000	1,892.7 us	14.61 us	13.66 us
Parallel	100000	1,667.0 us	12.10 us	11.32 us
Multithread	100000	2,138.8 us	16.26 us	14.41 us
Simple	1000000	18,190.2 us	160.97 us	150.57 us
Parallel	1000000	15,332.3 us	108.35 us	96.05 us
Multithread	1000000	17,012.6 us	328.78 us	307.54 us

MBP 13 Mid 2017 (without touch bar)

BenchmarkDotNet=v0.13.0, OS=macOS Catalina 10.15.1 (19B77a) [Darwin 19.0.0] Intel Core i5-7360U CPU 2.30GHz (Kaby Lake), 1 CPU, 4 logical and 2 physical cores .NET SDK=5.0.203 [Host] : .NET 5.0.6 (5.0.621.22011), X64 RyuJIT DefaultJob : .NET 5.0.6 (5.0.621.22011), X64 RyuJIT

Method	size	Mean	Error	StdDev
Simple	10000	164.0 us	3.19 us	2.66 us
Parallel	10000	245.4 us	4.85 us	11.98 us
Multithread	10000	642.2 us	5.91 us	5.24 us
Simple	100000	1,728.6 us	6.40 us	5.34 us
Parallel	100000	2,269.2 us	34.43 us	32.20 us
Multithread	100000	3,969.0 us	41.38 us	38.71 us
Simple	1000000	18,139.8 us	149.14 us	132.21 us
Parallel	1000000	20,803.8 us	410.20 us	718.42 us
Multithread	1000000	39,365.5 us	769.70 us	719.98 us

HP Elitebook 14 (840 G7)

BenchmarkDotNet=v0.13.0, OS=Windows 10.0.19042.1052 (20H2/October2020Update) Intel Core i7-10510U CPU 1.80GHz, 1 CPU, 8 logical and 4 physical cores .NET SDK=5.0.202 [Host] : .NET 5.0.5 (5.0.521.16609), X64 RyuJIT DefaultJob : .NET 5.0.5 (5.0.521.16609), X64 RyuJIT

Method	size	Mean	Error	StdDev
Simple	10000	170.1 us	3.36 us	7.10 us
Parallel	10000	183.2 us	1.77 us	1.65 us
Multithread	10000	1,102.6 us	15.39 us	12.85 us
Simple	100000	1,764.7 us	32.48 us	25.36 us
Parallel	100000	1,615.3 us	9.62 us	8.53 us
Multithread	100000	2,617.6 us	51.92 us	40.54 us
Simple	1000000	25,584.5 us	1,454.79 us	4,266.65 us
Parallel	1000000	15,261.5 us	285.04 us	649.18 us
Multithread	1000000	17,710.3 us	352.98 us	627.42 us