Java programs versus C# .NET Core by benchmark task performance regex-redux source secs mem gz cpu cpu load Java 10.51 573,972 929 31.30 70% 73% 70% 86% C# .NET Core 30.74 1,483,936 659 110.24 92% 89% 90% 88% k-nucleotide source secs mem gz cpu cpu load Java 8.75 385,056 1812 27.09 85% 72% 70% 85% C# .NET Core 11.47 189,036 2044 40.36 96% 95% 74% 87% binary-trees source secs mem gz cpu cpu load Java 8.39 933,808 835 28.28 82% 86% 84% 88% C# .NET Core 8.26 877,360 810 26.13 80% 80% 81% 79% pidigits source secs mem gz cpu cpu load Java 3.13 36,984 938 3.36 4% 4% 99% 3% C# .NET Core 3.03 35,360 1026 3.03 1% 0% 0% 100% n-body source secs mem gz cpu cpu load Java 22.17 33,040 1489 22.27 100% 1% 0% 1% C# .NET Core 21.37 34,120 1542 21.36 100% 1% 0% 1% mandelbrot source secs mem gz cpu cpu load Java 6.10 76,520 796 23.59 97% 98% 98% 96% C# .NET Core 5.83 65,344 794 22.93 99% 98% 98% 99% reverse-complement source secs mem gz cpu cpu load Java 3.15 680,424 2183 7.07 52% 70% 43% 63% C# .NET Core 2.95 1,032,860 1621 7.17 41% 35% 94% 75% spectral-norm source secs mem gz cpu cpu load Java 4.38 35,388 950 16.80 96% 96% 95% 97% C# .NET Core 4.07 32,608 878 15.82 99% 97% 97% 97% fasta source secs mem gz cpu cpu load Java 2.27 43,628 2473 5.93 51% 75% 57% 81% C# .NET Core 2.09 65,216 2098 7.97 95% 99% 95% 95% fannkuch-redux source secs mem gz cpu cpu load Java 18.27 31,820 1282 72.06 99% 99% 98% 98% C# .NET Core 14.44 32,724 1049 55.77 97% 92% 98% 99% Java java 10 2018-03-20 Java(TM) SE Runtime Environment 18.3 (build 10+46) Java HotSpot(TM) 64-Bit Server VM 18.3 (build 10+46, mixed mode) C# .NET Core 2.0.2 a04b4bf512 "System.GC.Server": true vs C vs C++ vs C# .NET Core