SDIO Performance once again
rgetz at blackfin.uclinux.org
Tue Feb 10 07:52:02 EST 2009
On Mon 9 Feb 2009 08:09, Dominik S. Herwald pondered:
> In the meantime I found out that my Problem seems to be related to the
> Kernel timer tick of 4ms
> (see my second posting on this list with the 4ms frames)...
> On Blackfin the Timer tick is set to 250Hz (4ms) by default. If I set it
> to 1000Hz,
> performance rises up to 11.2MBit/s performance!
What happens when you select tickless?
Select GENERIC_TIME && GENERIC_CLOCKEVENTS && CYCLES_CLOCKSOURCE
And it should show up as "Tickless System (Dynamic Ticks)".
More information about the libertas-dev