Hi! Recently I've upgraded internal cf on my c3000. So now I have a better idea of what cf storage performance you can get with c3000 hardwire.
Benchmark results (2.6.19 kernel, dd if=/dev/hda of=/dev/null): 1) unmodified kernel: ~ 2MB/sec 2) optimized timings, 250ns io cycle: ~ 3MB/sec 3) optimized timings, DMA patch, 250ns io cycle: ~ 4MB/sec 4) optimized timings, DMA patch, 120ns io cycle: ~ 5.5MB/sec 5) optimized timings, DMA patch, 120ns io cycle, different cf card: ~ 6.3MB/sec optimized timings = Changes I described in "pxa pcmcia timings" thread. 120ns io cycle = CFA advanced I/O timing mode supported by the card. DMA patch = ide-cs patch, which adds support for memory-to-memory style DMA to transfer data from IDE data register to memory buffer. _______________________________________________ Zaurus-devel mailing list Zaurus-devel@lists.linuxtogo.org http://lists.linuxtogo.org/cgi-bin/mailman/listinfo/zaurus-devel
