Quality RTOS & Embedded Software

 Real time embedded FreeRTOS RSS feed 
Quick Start Supported MCUs PDF Books Trace Tools Ecosystem


Loading

Profiling task execution

Posted by Jack Peacock on July 10, 2008
I'd like to profile task execution in a STR750 ARM environment, running FreeRTOS. Is it possible, with trace enabled, to add some code to the timer hook to look at the pxCurentTCB task block and count the number of times a task is active at the time tick, using the uxTCBNumber field as an index into an array of counters? Does pxCurrentTCB still point to the last running task when vApplicationTickHook is called?

I already have a low priority operator command line task running, which I can use to process the counter array and display percentage execution time by task.

RE: Profiling task execution

Posted by Dave on July 10, 2008
The old tick hook is called before a task is selected to run. Look at using the trace macros instead which provide greater flexibility. http://www.freertos.org/rtos-trace-macros.html


[ Back to the top ]    [ About FreeRTOS ]    [ Privacy ]    [ Sitemap ]    [ ]


Copyright (C) Amazon Web Services, Inc. or its affiliates. All rights reserved.

Latest News

FreeRTOS v10.2.0 is available for immediate download. MIT licensed, and including RISC-V and ARMv8-M (Cortex-M33) demos.

NXP tweet showing LPC5500 (ARMv8-M Cortex-M33) running FreeRTOS.

View a recording of the "OTA Update Security and Reliability" webinar, presented by TI and AWS.


Careers

FreeRTOS and other embedded software careers at AWS.



FreeRTOS Partners

ARM Connected RTOS partner for all ARM microcontroller cores

Cadence Tensilica Cortes

Espressif ESP32

IAR Partner

Microchip Premier RTOS Partner

RTOS partner of NXP for all NXP ARM microcontrollers

Mediatek

Renesas

RISC-V

SiFIve RISC-V

STMicro RTOS partner supporting ARM7, ARM Cortex-M3, ARM Cortex-M4 and ARM Cortex-M0

Texas Instruments MCU Developer Network RTOS partner for ARM and MSP430 microcontrollers

OpenRTOS and SafeRTOS

Xilinx Microblaze and Zynq partner