Hello, there, If I understood correctly, my card takes 6.75 seconds to write the >> 19MB and 19 MB / 6.75 = 2.8MB/s should be the maximum data rate my >> cards can handle, is that it? >> > > Yes, the cards are in PIO mode so seem to be disabled. And as I wrote - it > is not only that they are ~16/2.8 ~= 5.5 times slower than those in DMA > mode, they use CPU much more during recording, so no resources fro other > CPU tasks. > > Can you try them with hdparm -I and send the reply? The CPU-limited > recording rate in DMA mode should be ~16MB/s > >
I am wondering about this. Can Elphel deal with RAID? If I format both my CF Cards to RAID 0, maybe I can improve (double) this performance, which could be something... thanks! flavio
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