- Raspberry Pi3: ARM Cortex A53, 1.2 GHz, 32 bit Raspbian 9 beta (gcc-6.2)
- Odroid-C2: ARM Cortex A53, 1.5 GHz, 64 bit Ubuntu 17.04 alpha (gcc-6.3)
- Intel i5-3337u: Ivy Bridge, 1.8 GHz (turbo 2,7 GHz), 64 bit Ubuntu 16.10 (gcc-6.2)
Architecture measurement: C-fast time in milliseconds at FFT_REPEAT=10 000 (gcc-6.3; 1 core test)
| C-fast_... | double | float | integer |
|---|---|---|---|
| Raspberry Pi1 0.7 GHz ARM11 | 5.884 ms | 4.712 ms | 5.344 ms |
| BeagleBone Black 1 GHz ARM Cortex A8 | 4.009 ms | 3.509 ms | 1.759 ms |
| Odroid-C1 1.5 GHz ARM Cortex A5 | 1.472 ms | 0.787 ms | 1.268 ms |
| Raspberry Pi3 1.2 GHz ARM Cortex A53 | 0.915 ms | 0.671 ms | 1.053 ms |
| Odroid-C2@64 bit 1.5 GHz ARM Cortex A53 | 0.738 ms | 0.496 ms | 0.432 ms |
| Intel Celeron J1900 | 0.371 ms | 0.342 ms | 0.324 ms |
| Intel Core laptop i5-3337u | 0.158 ms | 0.107 ms | 0.113 ms |
C relative speed compared with C-fast_double; floatemu if not FPU in the processor (e.g. some 32 bit microcontroller)
| Language | Raspberry Pi3 | Odroid-C2@64 bit | i5-3337u |
|---|---|---|---|
| C-fast_double | 1 (0.915 ms) | 1 (0.726 ms) | 1 (0.180 ms) |
| C-fast_float | 0.82 | 0.74 | 0.69 |
| C-fast_integer | 1.12 | 0.58 | 0.79 |
| C-fast_longlong_64bit | - | 1.46 | 1.38 |
| C-fast_float-nocomplex-floatemu | 4.77 | 4.21 | 5.87 |
| C++ | |||
| C++-fast_double | 1.03 (clang 6) | 1.13 | 1.02 |
Other compiled language speed compared with C-fast_double
| Language | Raspberry Pi3 | Odroid-C2@64 bit | i5-3337u |
|---|---|---|---|
| C# (.NET 6) | 1.26 | ||
| Rust (rustc-1.14) | 1.34 | 1.35 | |
| Go (gccgo-6.3) | 1.45 | 1.30 | 1.49 |
| C# (mono-5.18) | 2.78 | ||
| Java (Oracle) | 7.94 | 1.38 | |
| C# (mono-4.x) | 8.32 | 5.73 | 5.22 |
| F# (fsharpc 4.0) | 8.31 | 4.93 |
Script language speed compared with C-fast_double
| Language | Raspberry Pi3 | Odroid-C2@64 bit | i5-3337u |
|---|---|---|---|
| LUA (LUAjit) | 8.01 | 8.49 | 5.4 |
| Python (Pypy 5.4) | 27.5 | 4.91 | |
| JavaScript (nodejs 4.x) | 25 | 23.7 | 17.3 |
| PHP7 | 129 | 135 | 88.2 |
| Ruby | 481 | 395 | 287 |
| AWK | 625 | 541 | 499 |
| PERL | 5139 | 5377 | 5710 |
| Octave | 9326 | 7972 |