On 08/23/13 14:50, Andrew Bradford wrote:
andrew@brick:~/git/flashbench$ sudo ./flashbench --find-fat --erasesize=$[1024*1024] --fat-nr=16 /dev/mmcblk0 1MiB 5.08M/s 4.94M/s 4.9M/s 6.36M/s 7.45M/s 7.57M/s 6.4M/s 6.03M/s 6.24M/s 5.44M/s 6.27M/s 6.17M/s 5.47M/s 6.25M/s 6.17M/s 5.36M/s 512KiB 6.04M/s 6.21M/s 7.21M/s 4.08M/s 2.82M/s 4.09M/s 4.64M/s 5.3M/s 6.04M/s 6.23M/s 5.46M/s 6.23M/s 6.19M/s 5.39M/s 6.26M/s 6.14M/s 256KiB 5.4M/s 6.27M/s 6.27M/s 3.85M/s 2.84M/s 4.02M/s 4.78M/s 5.17M/s 6.26M/s 6.21M/s 5.47M/s 6.17M/s 6.26M/s 5.4M/s 6.2M/s 6.27M/s 128KiB 4.66M/s 6.27M/s 6.21M/s 3.89M/s 2.79M/s 4.15M/s 4.71M/s 5.31M/s 6.19M/s 6.24M/s 5.46M/s 6.05M/s 6.25M/s 5.51M/s 6.24M/s 6.21M/s 64KiB 5.44M/s 6.24M/s 6.13M/s 3.79M/s 2.82M/s 4.06M/s 4.71M/s 5.26M/s 6.28M/s 6.27M/s 5.42M/s 6.21M/s 6.27M/s 5.45M/s 6.15M/s 6.24M/s 32KiB 4.38M/s 4.71M/s 4.83M/s 6.78M/s 8.47M/s 8.43M/s 8.44M/s 8.14M/s 8.28M/s 8.66M/s 8.85M/s 8.36M/s 3.9M/s 2.77M/s 4.15M/s 4.7M/s 16KiB 2.46M/s 3.57M/s 5.92M/s 6.44M/s 6.43M/s 6.38M/s 6.4M/s 6.43M/s 6.43M/s 6.84M/s 6.83M/s 6.86M/s 4.89M/s 3.35M/s 3.28M/s 4.76M/s
## No special fat area really stands out
After review, the 5th erase block is actually slower and is the start of the fat partition, so that could be it. Same for the 4 GB version.
-Andrew