C674 Timing Benchmarks

Target Platform: ti.platforms.evmTI814X

Tool Chain Version: 8.1.2

BIOS Version: bios_6_73_00_11_eng

XDCTools Version: xdctools_3_50_07_20_core

Benchmark	Cycles
Interrupt Latency	164
Hwi_restore()	2
Hwi_disable()	3
Hwi dispatcher prolog	133
Hwi dispatcher epilog	161
Hwi dispatcher	289
Hardware Interrupt to Blocked Task	470
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	1816
Set a Task Priority without a Context Switch	141
Task_yield()	196
Post Semaphore No Waiting Task	83
Post Semaphore No Task Switch	164
Post Semaphore with Task Switch	225
Pend on Semaphore No Context Switch	58
Pend on Semaphore with Task Switch	230
Clock_getTicks()	13
POSIX Create a New Task without Context Switch	3009
POSIX Set a Task Priority without a Context Switch	120
POSIX Post Semaphore No Waiting Task	99
POSIX Post Semaphore No Task Switch	199
POSIX Post Semaphore with Task Switch	279
POSIX Pend on Semaphore No Context Switch	114
POSIX Pend on Semaphore with Task Switch	266

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.