4 Aug
2011
4 Aug
'11
2:37 p.m.
On 4 August 2011 15:28, James Tunnicliffe james.tunnicliffe@linaro.org wrote:
On 4 August 2011 14:56, David Gilbert david.gilbert@linaro.org wrote:
On 4 August 2011 14:52, James Tunnicliffe james.tunnicliffe@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