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Target Platform: ti.platforms.tiva:TM4C123GH6PM:1
Tool Chain Version: 4.9.3
BIOS Version: bios_6_46_00_22_eng
XDCTools Version: xdctools_3_32_01_11_eng
| Benchmark | Cycles |
|---|---|
| Interrupt Latency | 152 |
| Hwi_restore() | 1 |
| Hwi_disable() | 4 |
| Hwi dispatcher prolog | 139 |
| Hwi dispatcher epilog | 234 |
| Hwi dispatcher | 364 |
| Hardware Interrupt to Blocked Task | 673 |
| Hardware Interrupt to Software Interrupt | 390 |
| Swi_enable() | 66 |
| Swi_disable() | 12 |
| Post Software Interrupt Again | 30 |
| Post Software Interrupt without Context Switch | 77 |
| Post Software Interrupt with Context Switch | 183 |
| Create a New Task without Context Switch | 2148 |
| Set a Task Priority without a Context Switch | 156 |
| Task_yield() | 290 |
| Post Semaphore No Waiting Task | 50 |
| Post Semaphore No Task Switch | 248 |
| Post Semaphore with Task Switch | 388 |
| Pend on Semaphore No Context Switch | 60 |
| Pend on Semaphore with Task Switch | 400 |
| Clock_getTicks() | 8 |
| POSIX Create a New Task without Context Switch | 4030 |
| POSIX Set a Task Priority without a Context Switch | 353 |
| POSIX Post Semaphore No Waiting Task | 61 |
| POSIX Post Semaphore No Task Switch | 261 |
| POSIX Post Semaphore with Task Switch | 401 |
| POSIX Pend on Semaphore No Context Switch | 72 |
| POSIX Pend on Semaphore with Task Switch | 411 |
The benchmark application was built using BIOS.LibType_Custom with the following BIOS.customCCOpts settings:
“-mcpu=cortex-m4 -mthumb -mfloat-abi=hard -mfpu=fpv4-sp-d16 -mabi=aapcs -O3 -Wunused -Wunknown-pragmas -ffunction-sections -fdata-sections -Dti_sysbios_Build_useHwiMacros -Dfar= -D__DYNAMIC_REENT__”.
The M4F target also supports zero latency interrupts. See ti.sysbios.family.arm.m3.Hwi cdocs for details.
See the SYS/BIOS User’s Guide for more information regarding how interrupt latency is calculated.