Compiler/TMS570LC4357: TMS570LC4357

Soundes Marzougui

Part Number: TMS570LC4357
Other Parts Discussed in Thread: HALCOGEN

Tool/software: TI C/C++ Compiler

Hello,

I am using TMS570LC and GIO Driver generated by HALCOGEN tool. I want to measure the performance of my algorithm in terms of cycles and time in micro seconds.

How can I measure cpu cyles and time and print the results.

Best,

Soundes.

over 7 years ago

0 QJ Wang over 7 years ago

TI__Guru**** 199216 points

Hello Soundes.,

The ARM Cortex-R5F CPU has one PMU (performance monitoring unit). The PMU consists of three event counting registers, and those counting registers can be used to measure the performance of your algorithm.

0 Soundes Marzougui over 7 years ago in reply to QJ Wang

Intellectual 310 points

Hello,

I can't find any code example of that.

Best regards,

Soundes.

0 QJ Wang over 7 years ago in reply to Soundes Marzougui

TI__Guru**** 199216 points

Hello Soundes,

The AHLCoGen generates functions for enabling, start/stop PMU: sys_pmu.asm

1. enable PMU:
/ -- Measurement Initialization; want to measure how many cycles are used to receive data from nodes
_pmuInit_();
_pmuEnableCountersGlobal_();
_pmuSetCountEvent_(pmuCOUNTER0, PMU_CYCLE_COUNT); // PMU_INST_ARCH_EXECUTED

2. start PMU counter
// -- Measurement Execution --
_pmuResetCounters_();
_pmuStartCounters_(pmuCOUNTER0);
cycles_PMU_start = _pmuGetEventCount_(pmuCOUNTER0);

3. code section

4. Stop PMU
_pmuStopCounters_(pmuCOUNTER0);
cycles_PMU_end = _pmuGetEventCount_(pmuCOUNTER0);
cycles_PMU_measure = cycles_PMU_end - cycles_PMU_start;
seconds_PMU = cycles_PMU_measure / (CPU frequency);

0 Soundes Marzougui over 7 years ago in reply to QJ Wang

Intellectual 310 points

Thanks a lot!

Arm-based microcontrollers

Arm-based microcontrollers forum

Compiler/TMS570LC4357: TMS570LC4357