C674 Timing Benchmarks

Target Platform: ti.platforms.evmTI814X

Tool Chain Version: 8.2.5

BIOS Version: bios_6_75_00_12_eng_keystone3

XDCTools Version: xdctools_3_51_00_13_core_eng

Benchmark	Cycles
Interrupt Latency	205
Hwi_restore()	2
Hwi_disable()	3
Hwi dispatcher prolog	127
Hwi dispatcher epilog	159
Hwi dispatcher	281
Hardware Interrupt to Blocked Task	445
Hardware Interrupt to Software Interrupt	271
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	1991
Set a Task Priority without a Context Switch	141
Task_yield()	199
Post Semaphore No Waiting Task	83
Post Semaphore No Task Switch	166
Post Semaphore with Task Switch	228
Pend on Semaphore No Context Switch	103
Pend on Semaphore with Task Switch	280
Clock_getTicks()	13
POSIX Create a New Task without Context Switch	3235
POSIX Set a Task Priority without a Context Switch	166
POSIX Post Semaphore No Waiting Task	99
POSIX Post Semaphore No Task Switch	183
POSIX Post Semaphore with Task Switch	244
POSIX Pend on Semaphore No Context Switch	123
POSIX Pend on Semaphore with Task Switch	294

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.