[Libdlo] CPU usage

Bernie Thompson bernie at plugable.com
Wed Oct 14 08:12:44 PDT 2009

Hi Ben,

The Linux drivers, and displaylink-mod in particular, is relatively
simple and efficient.  There will be a CPU load when pixels are
changing on the USB dislpay, but there should/will be none when no
pixels are changing.  Of course, another thing is with more screen
real-estate, we tend to run more applications.

Are you seeing different CPU behavior than that?

But as far as CPU/memory access cost per pixel, displaylink-mod isn't
bad, but probably there's lots of optimizations in that inner loop
which could yet be had ...

Best wishes,

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