C674 Timing Benchmarks

Target Platform: ti.platforms.evmTI814X

Tool Chain Version: 8.3.2

BIOS Version: bios_6_76_00_06_eng_k3

XDCTools Version: xdctools_3_55_00_09_core_eng

Benchmark	Cycles
Interrupt Latency	245
Hwi_restore()	2
Hwi_disable()	3
Hwi dispatcher prolog	132
Hwi dispatcher epilog	154
Hwi dispatcher	281
Hardware Interrupt to Blocked Task	485
Hardware Interrupt to Software Interrupt	283
Swi_enable()	61
Swi_disable()	13
Post Software Interrupt Again	45
Post Software Interrupt without Context Switch	77
Post Software Interrupt with Context Switch	148
Create a New Task without Context Switch	1890
Set a Task Priority without a Context Switch	141
Task_yield()	237
Post Semaphore No Waiting Task	83
Post Semaphore No Task Switch	166
Post Semaphore with Task Switch	265
Pend on Semaphore No Context Switch	81
Pend on Semaphore with Task Switch	257
Clock_getTicks()	13
POSIX Create a New Task without Context Switch	3068
POSIX Set a Task Priority without a Context Switch	120
POSIX Post Semaphore No Waiting Task	99
POSIX Post Semaphore No Task Switch	183
POSIX Post Semaphore with Task Switch	281
POSIX Pend on Semaphore No Context Switch	99
POSIX Pend on Semaphore with Task Switch	272

The benchmark application was built using BIOS.LibType_Custom with the following BIOS.customCCOpts settings: “-mv6740 -mi10 -mo -pdr -pden -pds=238 -pds=880 -pds1110 –program_level_compile -o3”.

As the timer used to run these benchmarks is run at 1/25 the CPU frequency, a deviation of +-25 cycles is to be expected.

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