C# .NET Core versus C# aot fastest programs Always look at the source code. These are only the fastest programs. Look at the other programs. They may seem more-like a fair comparison to you. k-nucleotide source secs mem gz busy cpu load C# .NET Core 5.63 184,992 2044 19.00 80% 88% 96% 73% C# aot 5.83 184,544 2044 18.53 75% 93% 70% 80% reverse-complement source secs mem gz busy cpu load C# .NET Core 3.16 1,029,156 1621 7.90 57% 77% 63% 53% C# aot 3.18 1,029,360 1621 7.88 40% 77% 74% 56% fasta source secs mem gz busy cpu load C# .NET Core 1.69 75,044 1691 6.28 90% 91% 96% 95% C# aot 1.69 96,812 1691 6.27 96% 95% 91% 90% n-body source secs mem gz busy cpu load C# .NET Core 21.74 34,000 1305 22.85 0% 0% 32% 73% C# aot 21.74 34,128 1305 23.43 79% 24% 5% 0% mandelbrot source secs mem gz busy cpu load C# .NET Core 5.60 65,320 816 22.00 98% 97% 99% 99% C# aot 5.60 64,812 816 22.00 100% 98% 98% 98% spectral-norm source secs mem gz busy cpu load C# .NET Core 2.16 35,800 764 8.21 94% 93% 99% 94% C# aot 2.16 35,764 764 8.21 95% 98% 93% 93% fannkuch-redux source secs mem gz busy cpu load C# .NET Core 11.41 32,388 1225 45.24 99% 100% 99% 99% C# aot 11.38 31,976 1225 45.15 99% 99% 99% 99% pidigits source secs mem gz busy cpu load C# .NET Core 1.86 33,240 1168 2.35 2% 20% 5% 99% C# aot 1.85 33,168 1168 1.89 1% 3% 98% 1% binary-trees source secs mem gz busy cpu load C# .NET Core 5.77 844,952 753 20.47 93% 87% 89% 86% C# aot 5.65 869,108 753 20.10 89% 88% 88% 91% regex-redux source secs mem gz busy cpu load C# .NET Core 2.82 365,156 1869 4.97 27% 86% 26% 38% C# aot 2.75 352,736 1869 4.96 86% 21% 40% 33% C# .NET Core .NET Core SDK 3.1.201 Host Version: 3.1.3; Commit: 4a9f85e9f8 <ServerGarbageCollection>true <ConcurrentGarbageCollection>true C# aot .NET Core SDK 3.1.201 Host Version: 3.1.3; Commit: 4a9f85e9f8 <ServerGarbageCollection>true <ConcurrentGarbageCollection>true /p:PublishReadyToRun=true /p:RuntimeIdentifier=linux-x64 all C# .NET Core programs & measurements all C# aot programs & measurements