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Target Platform: ti.platforms.tiva:TM4C123GH6PM:1
Tool Chain Version: 16.9.3
BIOS Version: bios_6_51_00_11_eng
XDCTools Version: xdctools_3_50_02_20_core
| Benchmark | Cycles |
|---|---|
| Interrupt Latency | 135 |
| Hwi_restore() | 6 |
| Hwi_disable() | 8 |
| Hwi dispatcher prolog | 114 |
| Hwi dispatcher epilog | 211 |
| Hwi dispatcher | 315 |
| Hardware Interrupt to Blocked Task | 499 |
| Hardware Interrupt to Software Interrupt | 324 |
| Swi_enable() | 60 |
| Swi_disable() | 8 |
| Post Software Interrupt Again | 30 |
| Post Software Interrupt without Context Switch | 82 |
| Post Software Interrupt with Context Switch | 155 |
| Create a New Task without Context Switch | 1559 |
| Set a Task Priority without a Context Switch | 141 |
| Task_yield() | 202 |
| Post Semaphore No Waiting Task | 42 |
| Post Semaphore No Task Switch | 155 |
| Post Semaphore with Task Switch | 246 |
| Pend on Semaphore No Context Switch | 64 |
| Pend on Semaphore with Task Switch | 262 |
| Clock_getTicks() | 7 |
| POSIX Create a New Task without Context Switch | 3057 |
| POSIX Set a Task Priority without a Context Switch | 187 |
| POSIX Post Semaphore No Waiting Task | 51 |
| POSIX Post Semaphore No Task Switch | 168 |
| POSIX Post Semaphore with Task Switch | 258 |
| POSIX Pend on Semaphore No Context Switch | 76 |
| POSIX Pend on Semaphore with Task Switch | 273 |
The benchmark application was built using BIOS.LibType_Custom with the following BIOS.customCCOpts settings: “–endian=little -mv7M4 –abi=eabi –float_support=fpv4spd16 -ms –opt_for_speed=2 –program_level_compile -o3”.
The M4F target also supports zero latency interrupts. See ti.sysbios.family.arm.m3.Hwi cdocs for details.
To minimize the effects of wait states, the performance measurements are collected at optimal CPU clock speeds on MSP432 and Tiva devices.
See the SYS/BIOS User’s Guide for more information regarding how interrupt latency is calculated.