UART console based on interrupt

[John Pickwick]

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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