Programming Language and compiler
Benchmarks

Dart VS Python benchmarks

Current benchmark data was generated on Mon Mar 31 2025, full log can be found HERE

CONTRIBUTIONS are WELCOME!

[x86_64][4 cores] AMD EPYC 7763 64-Core Processor (Model 1)

* -m in a file name stands for multi-threading or multi-processing

* -i in a file name stands for direct intrinsics usage. (Usage of simd intrinsics via libraries is not counted)

* -ffi in a file name stands for non-stdlib FFI usage

* (You may find time < time(user) + time(sys) for some non-parallelized programs, the overhead is from GC or JIT compiler, which are allowed to take advantage of multi-cores as that's more close to real-world scenarios.)

binarytrees

Input: 18

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
dart 1.dart 694ms 4.4ms 80.7MB 657ms 40ms dart/exe 3.7.2
python 1.py 1210ms 7.0ms 96.2MB 1147ms 47ms pypy 3.10.16
python 1.py timeout 0.0ms 40.8MB 4963ms 20ms cpython 3.13.2
python 1.py timeout 0.0ms 40.5MB 4747ms 240ms pyston 3.8.12

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
dart 1.dart 74ms 0.1ms 42.6MB 50ms 17ms dart/exe 3.7.2
python 1.py 95ms 1.1ms 68.8MB 67ms 17ms pypy 3.10.16
python 1.py 479ms 4.3ms 11.9MB 453ms 10ms pyston 3.8.12
python 1.py 718ms 7.5ms 12.6MB 703ms 0ms cpython 3.13.2

coro-prime-sieve

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
python 1.py 1217ms 27ms 107.0MB 1170ms 30ms pypy 3.10.16
dart 1-m.dart 1665ms 2884ms 19.1MB 5463ms 67ms dart/exe 3.7.2
python 1.py 2643ms 6.3ms 25.0MB 2620ms 13ms cpython 3.13.2
python 1.py timeout 0.0ms 17.3MB 4980ms 7ms pyston 3.8.12

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
python 1.py 224ms 3.9ms 86.3MB 190ms 20ms pypy 3.10.16
python 1.py 228ms 1.1ms 20.2MB 207ms 10ms cpython 3.13.2
dart 1.dart 347ms 4.8ms 10.5MB 347ms 10ms dart/exe 3.7.2
python 1.py 685ms 12ms 16.8MB 667ms 7ms pyston 3.8.12

edigits

Input: 250001

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
python 1.py 254ms 5.1ms 83.6MB 217ms 20ms pypy 3.10.16
python 1.py 360ms 1.5ms 12.5MB 343ms 3ms cpython 3.13.2
python 1.py 2006ms 5.2ms 9.6MB 1990ms 0ms pyston 3.8.12
dart 1.dart 3684ms 4.5ms 18.0MB 3650ms 30ms dart/exe 3.7.2

Input: 100000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
python 1.py 100ms 1.7ms 63.4MB 73ms 13ms pypy 3.10.16
python 1.py 139ms 55ms 12.0MB 100ms 0ms cpython 3.13.2
python 1.py 350ms 0.8ms 8.8MB 340ms 0ms pyston 3.8.12
dart 1.dart 598ms 3.5ms 10.0MB 577ms 10ms dart/exe 3.7.2

fannkuch-redux

Input: 11

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
dart 2.dart 2741ms 18ms 6.3MB 2730ms 0ms dart/exe 3.7.2

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
dart 2.dart 222ms 1.7ms 6.3MB 210ms 0ms dart/exe 3.7.2

fasta

Input: 2500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
dart 1.dart 360ms 2.9ms 8.6MB 350ms 0ms dart/exe 3.7.2
python 1.py 1852ms 1.6ms 88.8MB 1807ms 30ms pypy 3.10.16
python 5-m.py 2282ms 30ms 65.4MB 3493ms 843ms pypy 3.10.16
python 5-m.py 2455ms 13ms 12.5MB 3537ms 1010ms pyston 3.8.12
python 1.py 3017ms 14ms 8.1MB 3007ms 0ms pyston 3.8.12
python 5-m.py 3351ms 11ms 13.5MB 4443ms 913ms cpython 3.13.2
python 1.py 4656ms 26ms 8.8MB 4640ms 0ms cpython 3.13.2

Input: 250000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
dart 1.dart 42ms 0.3ms 8.6MB 30ms 0ms dart/exe 3.7.2
python 1.py 251ms 5.7ms 63.3MB 223ms 13ms pypy 3.10.16
python 5-m.py 311ms 1.4ms 12.4MB 393ms 143ms pyston 3.8.12
python 1.py 318ms 0.3ms 8.1MB 310ms 0ms pyston 3.8.12
python 5-m.py 397ms 5.6ms 13.6MB 480ms 133ms cpython 3.13.2
python 5-m.py 445ms 6.3ms 65.4MB 737ms 310ms pypy 3.10.16
python 1.py 488ms 7.2ms 8.6MB 477ms 0ms cpython 3.13.2

helloworld

Input: QwQ

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
dart 1.dart 3.8ms 0.3ms 5.3MB 0ms 0ms dart/exe 3.7.2
python 1.py 11ms 0.5ms 7.6MB 0ms 0ms pyston 3.8.12
python 1.py 14ms 1.0ms 8.6MB 10ms 0ms cpython 3.13.2
python 1.py 29ms 1.1ms 51.6MB 10ms 10ms pypy 3.10.16

http-server

Input: 3000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
dart 2-m.dart 1395ms 29ms 95.6MB 1307ms 1560ms dart/exe 3.7.2
python 1.py 2132ms 36ms 26.8MB 1117ms 1563ms pyston 3.8.12
python 1.py 2559ms 231ms 27.3MB 1567ms 1620ms cpython 3.13.2
dart 1.dart 4512ms 421ms 95.6MB 1510ms 1877ms dart/exe 3.7.2
python 1.py 4884ms 99ms 101.8MB 2890ms 1217ms pypy 3.10.16

Input: 500

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
dart 2-m.dart 263ms 8.2ms 50.0MB 173ms 297ms dart/exe 3.7.2
python 1.py 1096ms 17ms 21.3MB 240ms 270ms pyston 3.8.12
python 1.py 1100ms 22ms 22.9MB 307ms 290ms cpython 3.13.2
python 1.py 1425ms 69ms 87.3MB 723ms 237ms pypy 3.10.16
dart 1.dart 1960ms 614ms 50.5MB 170ms 270ms dart/exe 3.7.2

json-serde

Input: sample 5000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
dart 1.dart 164ms 1.6ms 53.4MB 140ms 13ms dart/exe 3.7.2
python 1.py 194ms 6.5ms 38.4MB 163ms 20ms pyston 3.8.12
python 1.py 214ms 1.4ms 38.6MB 187ms 13ms cpython 3.13.2
python 1.py 298ms 2.7ms 89.5MB 260ms 20ms pypy 3.10.16

Input: canada 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
dart 1.dart 1505ms 18ms 206.4MB 1730ms 110ms dart/exe 3.7.2
python 1.py 1815ms 17ms 220.5MB 1643ms 160ms pyston 3.8.12
python 1.py 1915ms 31ms 222.2MB 1830ms 73ms pypy 3.10.16
python 1.py 1927ms 7.1ms 221.4MB 1830ms 87ms cpython 3.13.2

knucleotide

Input: 2500000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
dart 3-m.dart 1118ms 24ms 274.4MB 3333ms 110ms dart/exe 3.7.2
python 3-m.py 2435ms 14ms 136.4MB 8277ms 343ms pypy 3.10.16
python 3-m.py 3135ms 60ms 34.3MB 11840ms 123ms pyston 3.8.12
python 3.py timeout 0.0ms 35.6MB 93ms 20ms cpython 3.13.2

Input: 250000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
dart 3-m.dart 201ms 4.8ms 186.6MB 523ms 47ms dart/exe 3.7.2
python 3-m.py 389ms 1.1ms 75.7MB 983ms 170ms pypy 3.10.16
python 3-m.py 393ms 4.9ms 14.2MB 1303ms 70ms pyston 3.8.12
python 3-m.py 634ms 4.3ms 15.1MB 2240ms 53ms cpython 3.13.2

lru

Input: 1000 1000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
python 2.py 144ms 0.5ms 58.3MB 120ms 10ms pypy 3.10.16
dart 2.dart 170ms 1.9ms 9.4MB 160ms 0ms dart/exe 3.7.2
python 1.py 179ms 2.6ms 59.4MB 157ms 10ms pypy 3.10.16
dart 1.dart 492ms 1.7ms 9.1MB 480ms 0ms dart/exe 3.7.2
python 1.py 719ms 5.8ms 8.9MB 707ms 0ms pyston 3.8.12
python 2.py 833ms 11ms 8.5MB 820ms 0ms pyston 3.8.12
python 1.py 1138ms 4.4ms 9.4MB 1127ms 0ms cpython 3.13.2
python 2.py 1348ms 40ms 9.0MB 1337ms 0ms cpython 3.13.2

Input: 1000 3000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
python 2.py 338ms 2.7ms 59.3MB 320ms 3ms pypy 3.10.16
python 1.py 380ms 6.1ms 60.3MB 353ms 10ms pypy 3.10.16
dart 2.dart 484ms 3.7ms 9.3MB 470ms 0ms dart/exe 3.7.2
dart 1.dart 1462ms 8.8ms 9.3MB 1447ms 3ms dart/exe 3.7.2
python 1.py 2132ms 18ms 8.9MB 2123ms 0ms pyston 3.8.12
python 2.py 2501ms 6.7ms 8.5MB 2490ms 0ms pyston 3.8.12
python 1.py 3370ms 28ms 9.4MB 3357ms 0ms cpython 3.13.2
python 2.py 3950ms 27ms 9.0MB 3937ms 0ms cpython 3.13.2

Input: 100 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
dart 2.dart 77ms 1.6ms 8.9MB 70ms 0ms dart/exe 3.7.2
python 2.py 106ms 5.2ms 57.9MB 83ms 10ms pypy 3.10.16
dart 1.dart 110ms 0.5ms 8.8MB 100ms 0ms dart/exe 3.7.2
python 1.py 122ms 1.9ms 58.7MB 100ms 10ms pypy 3.10.16
python 1.py 348ms 6.0ms 8.5MB 333ms 0ms pyston 3.8.12
python 2.py 387ms 2.2ms 8.1MB 373ms 0ms pyston 3.8.12
python 1.py 539ms 4.9ms 9.0MB 523ms 0ms cpython 3.13.2
python 2.py 634ms 5.0ms 8.6MB 623ms 0ms cpython 3.13.2

merkletrees

Input: 17

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
dart 1.dart 325ms 2.6ms 63.8MB 300ms 27ms dart/exe 3.7.2
python 1.py 2202ms 10ms 203.1MB 2083ms 107ms pypy 3.10.16
python 1.py timeout 0.0ms 93.9MB 4950ms 40ms cpython 3.13.2
python 1.py timeout 0.0ms 130.4MB 4940ms 50ms pyston 3.8.12

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
dart 1.dart 84ms 0.4ms 43.8MB 60ms 13ms dart/exe 3.7.2
python 1.py 377ms 5.4ms 105.2MB 323ms 40ms pypy 3.10.16
python 1.py 3111ms 151ms 37.2MB 3083ms 13ms cpython 3.13.2
python 1.py timeout 0.0ms 48.9MB 4940ms 43ms pyston 3.8.12

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
dart 3.dart 408ms 3.7ms 6.1MB 400ms 0ms dart/exe 3.7.2
python 2.py 1353ms 7.7ms 60.3MB 1330ms 10ms pypy 3.10.16
python 1.py 2647ms 8.4ms 57.2MB 2623ms 10ms pypy 3.10.16
python 1.py timeout 0.0ms 8.6MB 4990ms 0ms cpython 3.13.2
python 2.py timeout 0.0ms 8.8MB 4990ms 0ms cpython 3.13.2
python 1.py timeout 0.0ms 8.3MB 4990ms 0ms pyston 3.8.12
python 2.py timeout 0.0ms 8.1MB 4990ms 0ms pyston 3.8.12

Input: 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
dart 3.dart 45ms 0.2ms 6.4MB 33ms 0ms dart/exe 3.7.2
python 2.py 182ms 1.3ms 58.1MB 160ms 10ms pypy 3.10.16
python 1.py 299ms 2.7ms 57.1MB 280ms 10ms pypy 3.10.16
python 1.py 932ms 16ms 8.3MB 920ms 0ms pyston 3.8.12
python 2.py 1282ms 11ms 8.3MB 1270ms 0ms pyston 3.8.12
python 1.py 2968ms 4.6ms 8.8MB 2953ms 0ms cpython 3.13.2
python 2.py 3214ms 99ms 8.8MB 3200ms 0ms cpython 3.13.2

pidigits

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
dart 2.dart 1354ms 5.1ms 14.8MB 1330ms 33ms dart/exe 3.7.2
python 4.py 1915ms 5.6ms 8.9MB 1873ms 30ms pyston 3.8.12
python 4.py 1945ms 3.8ms 9.4MB 1893ms 40ms cpython 3.13.2
python 4.py 2174ms 1.1ms 89.4MB 2133ms 30ms pypy 3.10.16

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
dart 2.dart 343ms 7.4ms 14.8MB 327ms 10ms dart/exe 3.7.2
python 4.py 451ms 0.7ms 8.6MB 440ms 0ms pyston 3.8.12
python 4.py 468ms 3.4ms 9.0MB 457ms 0ms cpython 3.13.2
python 4.py 549ms 3.3ms 83.8MB 513ms 20ms pypy 3.10.16

regex-redux

Input: 2500000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
python 1.py 2244ms 5.8ms 243.6MB 2190ms 40ms pypy 3.10.16
python 1.py 4741ms 7.8ms 225.5MB 4550ms 173ms pyston 3.8.12
dart 1.dart timeout 0.0ms 188.2MB 4983ms 50ms dart/exe 3.7.2
python 1.py timeout 0.0ms 146.4MB 4933ms 57ms cpython 3.13.2

Input: 250000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
python 1.py 330ms 3.2ms 85.6MB 293ms 20ms pypy 3.10.16
python 1.py 497ms 6.0ms 29.8MB 463ms 17ms pyston 3.8.12
dart 1.dart 570ms 22ms 43.2MB 550ms 10ms dart/exe 3.7.2
python 1.py 606ms 2.2ms 30.7MB 573ms 20ms cpython 3.13.2

spectral-norm

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
dart 1.dart 3773ms 14ms 6.4MB 3763ms 0ms dart/exe 3.7.2
dart 2.dart 4338ms 5.9ms 6.4MB 4327ms 0ms dart/exe 3.7.2
python 8.py timeout 0.0ms 14.9MB 40ms 10ms cpython 3.13.2
python 8.py timeout 0.0ms 95.4MB 790ms 77ms pypy 3.10.16
python 8.py timeout 0.0ms 14.2MB 37ms 13ms pyston 3.8.12

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
dart 1.dart 944ms 2.2ms 6.3MB 930ms 0ms dart/exe 3.7.2
dart 2.dart 1088ms 11ms 6.1MB 1080ms 0ms dart/exe 3.7.2
python 8.py timeout 0.0ms 14.4MB 43ms 10ms cpython 3.13.2
python 8.py timeout 0.0ms 96.7MB 1313ms 177ms pypy 3.10.16
python 8.py timeout 0.0ms 13.7MB 53ms 20ms pyston 3.8.12

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
dart 1.dart 241ms 2.5ms 6.3MB 230ms 0ms dart/exe 3.7.2
dart 2.dart 285ms 8.1ms 6.3MB 273ms 0ms dart/exe 3.7.2
python 8-m.py 1974ms 19ms 92.9MB 6383ms 260ms pypy 3.10.16
python 8.py timeout 0.0ms 14.0MB 90ms 20ms cpython 3.13.2
python 8.py timeout 0.0ms 13.1MB 123ms 37ms pyston 3.8.12