On 4 August 2011 15:28, James Tunnicliffe <james.tunnicli...@linaro.org> wrote: > On 4 August 2011 14:56, David Gilbert <david.gilb...@linaro.org> wrote: >> On 4 August 2011 14:52, James Tunnicliffe <james.tunnicli...@linaro.org> >> wrote: >>> I have seen poor performance when DDing to a card, which I assume is >>> because dd is not writing large aligned chunks. If we can dd the first >>> meg or so of data onto the card, then write in 4MB chunks that are all >>> 4MB aligned that should be quick (at least, if my reading of my >>> flashbench results is correct). >> >> What options to dd are you using? dd if=file of=/dev/thewholedevice bs=4096k >> should write 4MB chunks out > > My understanding is they are 4MB chunks, but not aligned to 4MB boundaries.
What exactly is your dd line? Dave _______________________________________________ linaro-dev mailing list linaro-dev@lists.linaro.org http://lists.linaro.org/mailman/listinfo/linaro-dev
