C674 Timing Benchmarks

Target Platform: ti.platforms.evmTI814X

Tool Chain Version: 8.1.2

BIOS Version: bios_6_70_00_18_eng

XDCTools Version: xdctools_3_50_04_43_core

Benchmark	Cycles
Interrupt Latency	233
Hwi_restore()	2
Hwi_disable()	3
Hwi dispatcher prolog	121
Hwi dispatcher epilog	157
Hwi dispatcher	273
Hardware Interrupt to Blocked Task	559
Hardware Interrupt to Software Interrupt	279
Swi_enable()	61
Swi_disable()	13
Post Software Interrupt Again	45
Post Software Interrupt without Context Switch	77
Post Software Interrupt with Context Switch	149
Create a New Task without Context Switch	1910
Set a Task Priority without a Context Switch	143
Task_yield()	242
Post Semaphore No Waiting Task	90
Post Semaphore No Task Switch	212
Post Semaphore with Task Switch	310
Pend on Semaphore No Context Switch	58
Pend on Semaphore with Task Switch	276
Clock_getTicks()	13
POSIX Create a New Task without Context Switch	3036
POSIX Set a Task Priority without a Context Switch	120
POSIX Post Semaphore No Waiting Task	106
POSIX Post Semaphore No Task Switch	252
POSIX Post Semaphore with Task Switch	369
POSIX Pend on Semaphore No Context Switch	121
POSIX Pend on Semaphore with Task Switch	313

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.