Quality RTOS & Embedded Software

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




Loading

Scheduler doubt

Posted by Nobody/Anonymous on January 11, 2007
Hi

When in the Test results you have:

Scheduler tick function
66.2μs with optimization. 68.4μs with no optimization.

That is the time the secheduler takes to make the context switch between two threads running?

regards

RE: Scheduler doubt

Posted by Richard on January 11, 2007
As described on the WEB site: "The saving and restoration of a task context is not included within the measurement. Each microcontroller requires a different set of registers to be saved meaning a comparison is not directly possible. The PUSH and POP test detailed in the next section can be used as a guide to how efficient the context switch itself may be." Therefore it is the time taken to run the function that selects the task but excluded the push and pop of the context.

Regards.

RE: Scheduler doubt

Posted by Jeff Smith on January 15, 2007
For these vague speed questions, which port are you even talking about? It sounds like you haven't even picked one, so you've got no context, and no wonder you don't know how fast it is.

I hope this is not a test question because you're going to miss that one for sure.


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




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

Latest News

FreeRTOS kernel V10 is available for immediate download. Now MIT licensed.


FreeRTOS Partners

ARM Connected RTOS partner for all ARM microcontroller cores

IAR Partner

Microchip Premier RTOS Partner

RTOS partner of NXP for all NXP ARM microcontrollers

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