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Performance monitoring is a very important part of the ChibiOS/RT development process, included in each release there are test reports regarding functionality, performance, size and code coverage. Benchmarking of ChibiOS/RT is explicitly allowed, please feel free to test, benchmark and measure it in any way you like. |
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The following results have been taken from the test reports of the version 2.4.0 stable.
| Platform-Frequency-Compiler | Context Switch | Kernel Size (bytes) |
|---|---|---|
| ARM7(ARM)/LPC2148-48-GCC4.6.2 | 2.03µS | 9224 |
| ARM7(THUMB)/LPC2148-48-GCC4.6.2 | 2.43µS | 6052 |
| ARMCM0/LPC1114-48-GCC4.6.2 | 2.60µS | 5500 |
| ARMCM0/LPC1343-72-GCC4.6.2 | 1.02µS | 6172 |
| ARMCM3/STM32F1xx-72-GCC4.6.2 | 1.03µS | 6172 |
| ARMCM3/STM32F4xx-168-GCC4.6.2 | 0.40µS | 6172 |
| MSP430F1611-8-GCC3.2.3 | 16.93µS | 6108 |
| AVR/ATMega128-16-GCC4.3.0 | 11.24µS | N/A ~7500 |
| STM8L152-16-Cosmic | N/A | N/A ~6500 |
| STM8L152-16-Raisonance | 9.03µS | N/A ~7000 |
| STM8S105-16-Cosmic | N/A | N/A ~6500 |
| STM8S105-16-Raisonance | 9.03µS | N/A ~7000 |
| PA/SPC563M64-80-GCC4.4.1 | 1.11µS | 11944 |
Note, the reported values are for the kernel compiled for maximum speed and with all the non-debug subsystems enabled. The reported sizes include only the kernel and the port layers, the optional HAL and device drivers are not included.
Latest test reports, the following data is also included in each ChibiOS/RT distribution under the directory ./docs/reports as text files. Note that the test reports also contain the results of many kernel related benchmarks.
