UART console based on interrupt

[Grigori_Khmyrov at uml.edu (Grigori Khmyrov)]

John,

Can you please share or point to how do you measure CPU usage.

Thank you,
Grigori

John Pickwick wrote:

> Hi to all,
>  
> I recently re-compiled my SparcLEON2 BSP / RTEMS4.7.1 using the 
> USE_CONSOLE_INTERRUPT macro and I compared the CPU usage with the 
> default BSP version that uses polled UART.
> I have a task waiting on console input with getchar and I expected the 
> interrupt driven version of the console to be less CPU consuming. 
> Unfortunately I find the same CPU usage percentage for that one.
>  
> Can someone explain this ?
>  
> Best regards,
>  
> John
>
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