GCC Cortex-M4 with hard FP Timing Benchmarks
Target Platform: ti.platforms.simplelink:CC2642:1
Tool Chain Version: 7.2.1
BIOS Version: bios_6_55_00_05_eng
XDCTools Version: xdctools_3_50_05_12_core
Benchmark | Cycles |
---|---|
Interrupt Latency | 176 |
Hwi_restore() | 17 |
Hwi_disable() | 16 |
Hwi dispatcher prolog | 151 |
Hwi dispatcher epilog | 240 |
Hwi dispatcher | 382 |
Hardware Interrupt to Blocked Task | 650 |
Hardware Interrupt to Software Interrupt | 454 |
Swi_enable() | 90 |
Swi_disable() | 20 |
Post Software Interrupt Again | 37 |
Post Software Interrupt without Context Switch | 117 |
Post Software Interrupt with Context Switch | 240 |
Create a New Task without Context Switch | 4650 |
Set a Task Priority without a Context Switch | 190 |
Task_yield() | 287 |
Post Semaphore No Waiting Task | 61 |
Post Semaphore No Task Switch | 224 |
Post Semaphore with Task Switch | 335 |
Pend on Semaphore No Context Switch | 75 |
Pend on Semaphore with Task Switch | 375 |
Clock_getTicks() | 220 |
POSIX Create a New Task without Context Switch | 7599 |
POSIX Set a Task Priority without a Context Switch | 274 |
POSIX Post Semaphore No Waiting Task | 73 |
POSIX Post Semaphore No Task Switch | 238 |
POSIX Post Semaphore with Task Switch | 349 |
POSIX Pend on Semaphore No Context Switch | 90 |
POSIX Pend on Semaphore with Task Switch | 388 |
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.