Texas Instruments

Table of Contents

TI Cortex-M4 with hard FP Timing Benchmarks

Target Platform: ti.platforms.tiva:TM4C123GH6PM:1

Tool Chain Version: 16.9.0

BIOS Version: bios_6_46_02_46_eng

XDCTools Version: xdctools_3_32_01_22

Benchmark Cycles
Interrupt Latency 135
Hwi_restore() 6
Hwi_disable() 8
Hwi dispatcher prolog 114
Hwi dispatcher epilog 208
Hwi dispatcher 312
Hardware Interrupt to Blocked Task 498
Hardware Interrupt to Software Interrupt 325
Swi_enable() 60
Swi_disable() 8
Post Software Interrupt Again 30
Post Software Interrupt without Context Switch 84
Post Software Interrupt with Context Switch 157
Create a New Task without Context Switch 1603
Set a Task Priority without a Context Switch 133
Task_yield() 202
Post Semaphore No Waiting Task 42
Post Semaphore No Task Switch 156
Post Semaphore with Task Switch 247
Pend on Semaphore No Context Switch 62
Pend on Semaphore with Task Switch 259
Clock_getTicks() 7
POSIX Create a New Task without Context Switch 3105
POSIX Set a Task Priority without a Context Switch 180
POSIX Post Semaphore No Waiting Task 51
POSIX Post Semaphore No Task Switch 167
POSIX Post Semaphore with Task Switch 257
POSIX Pend on Semaphore No Context Switch 74
POSIX Pend on Semaphore with Task Switch 272

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.

See the SYS/BIOS User’s Guide for more information regarding how interrupt latency is calculated.