M3 Timing Benchmarks

ti.platforms.evmLM3S8962

Benchmark Cycles (1)
Interrupt latency 91 (2)
Hwi_enable 1
Hwi_disable 6
Hwi dispatcher prolog 88
Hwi dispatcher epilog 163
Hwi dispatcher 243
Hardware Interrupt to Blocked Task 388
Hardware Interrupt to Software Interrupt 276
Swi_enable 59
Swi_disable 12
Post Software Interrupt Again 30
Post Software Interrupt without Context Switch 99
Post Software Interrupt with Context Switch 158
Create a New Task without Context Switch 1546
Set a Task Priority without a Context Switch 171
Task_yield 162
Post Semaphore, No Waiting Task 46
Post Semaphore No Task Switch 146
Post Semaphore with Task Switch 193
Pend on Semaphore, No Context Switchi 55
Pend on Semaphore with Task Switch 203
Clock_getTicks 10

(1) The benchmark application was built using BIOS.LibType_Custom with the following BIOS.customCCOpts settings: "--endian=little -mv7M3 --abi=eabi -ms --embed_inline_assembly --opt_for_speed=2 --program_level_compile -o3".

Timings were obtained using the Stellaris evmLM3S8962 board running at 80MHz.

(2) The M3 target also supports zero latency interrupts. See ti.sysbios.family.arm.m3.Hwi cdocs for details.