Texas Instruments

Table of Contents

C28x large model Timing Benchmarks

Target Platform: ti.platforms.ezdsp28335

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 171
Hwi_restore() 24
Hwi_disable() 17
Hwi dispatcher prolog 239
Hwi dispatcher epilog 172
Hwi dispatcher 412
Hardware Interrupt to Blocked Task 648
Hardware Interrupt to Software Interrupt 475
Swi_enable() 101
Swi_disable() 18
Post Software Interrupt Again 39
Post Software Interrupt without Context Switch 134
Post Software Interrupt with Context Switch 259
Create a New Task without Context Switch 3846
Set a Task Priority without a Context Switch 208
Task_yield() 253
Post Semaphore No Waiting Task 55
Post Semaphore No Task Switch 215
Post Semaphore with Task Switch 302
Pend on Semaphore No Context Switch 85
Pend on Semaphore with Task Switch 358
Clock_getTicks() 13
POSIX Create a New Task without Context Switch 7128
POSIX Set a Task Priority without a Context Switch 281
POSIX Post Semaphore No Waiting Task 62
POSIX Post Semaphore No Task Switch 230
POSIX Post Semaphore with Task Switch 313
POSIX Pend on Semaphore No Context Switch 99
POSIX Pend on Semaphore with Task Switch 373

The benchmark application was built using BIOS.LibType_Custom with the following BIOS.customCCOpts settings: “-v28 -DLARGE_MODEL=1 -ml -mo –program_level_compile -o3”.

The C28x targets also supports zero latency interrupts. See ti.sysbios.family.c28.Hwi cdocs for details.

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