Chapel versus Go fastest programs Always look at the source code. These are only the fastest programs. Do some of them use manually vectorized SIMD? Look at the other programs. They may seem more-like a fair comparison to you. fasta source secs mem gz busy cpu load Chapel 0.93 5,252 1391 3.36 100% 87% 88% 87% Go 1.28 11,276 1404 3.78 65% 86% 81% 65% pidigits source secs mem gz busy cpu load Chapel 0.75 6,516 512 0.75 99% 1% 0% 0% Go 1.00 8,952 683 1.04 0% 3% 99% 2% mandelbrot source secs mem gz busy cpu load Chapel 3.32 36,104 588 13.13 99% 98% 99% 99% Go 3.75 34,832 894 14.92 100% 99% 99% 100% spectral-norm source secs mem gz busy cpu load Chapel 1.46 5,204 310 5.80 99% 99% 99% 99% Go 1.44 2,356 548 5.71 99% 99% 99% 99% n-body source secs mem gz busy cpu load Chapel 6.79 5,388 971 7.09 100% 1% 0% 3% Go 6.38 1,896 1200 6.43 0% 100% 1% 0% regex-redux source secs mem gz busy cpu load Chapel 4.29 486,708 493 6.81 99% 21% 21% 17% Go 3.94 323,252 810 6.14 74% 30% 19% 33% reverse-complement source secs mem gz busy cpu load Chapel 1.65 1,882,564 755 3.51 96% 38% 38% 41% Go 1.42 1,344,600 1338 2.66 57% 36% 71% 24% binary-trees source secs mem gz busy cpu load Chapel 7.86 298,696 488 24.18 100% 57% 77% 74% Go 6.68 266,164 745 26.59 100% 99% 99% 100% fannkuch-redux source secs mem gz busy cpu load Chapel 9.35 4,288 731 37.30 100% 100% 100% 100% Go 7.59 2,064 969 30.31 100% 100% 100% 100% k-nucleotide source secs mem gz busy cpu load Chapel 10.43 177,052 996 38.90 100% 90% 91% 92% Go 8.30 160,300 1607 31.96 96% 98% 96% 95% Chapel chpl version 1.23.0 Copyright 2020 Hewlett Packard Enterprise Development LP Copyright (c) 2004-2019, Cray Inc. Go go version go1.16 linux/amd64 all Chapel programs & measurements all Go programs & measurements