I compare performance of my devices with common tools.
For the storage and overall cpu-memory-storage performance:
hdparm -tT /dev/sd?
For the memory:
mbw 100 | grep AVG
/dev/sda:
Timing cached reads: 1674 MB in 2.00 seconds = 837.16 MB/sec
Timing buffered disk reads: 780 MB in 3.00 seconds = 259.71 MB/sec
MEMCPY Elapsed: 0.08145 MiB: 100.00000 Copy: 1227.699 MiB/s
DUMB Elapsed: 0.08961 MiB: 100.00000 Copy: 1115.902 MiB/s
MCBLOCK Elapsed: 0.03009 MiB: 100.00000 Copy: 3323.805 MiB/
/dev/mmcblk0:
Timing cached reads: 1248 MB in 2.00 seconds = 623.82 MB/sec
Timing buffered disk reads: 68 MB in 3.02 seconds = 22.54 MB/sec
MEMCPY Elapsed: 0.10468 MiB: 100.00000 Copy: 955.336 MiB/s
DUMB Elapsed: 0.09871 MiB: 100.00000 Copy: 1013.038 MiB/s
MCBLOCK Elapsed: 0.06056 MiB: 100.00000 Copy: 1651.260 MiB/s
Timing cached reads: 2114 MB in 2.00 seconds = 1058.37 MB/sec
Timing buffered disk reads: 380 MB in 3.01 seconds = 126.18 MB/sec
/dev/sda:
Timing cached reads: 1438 MB in 2.00 seconds = 719.17 MB/sec
Timing buffered disk reads: 132 MB in 3.00 seconds = 43.95 MB/sec
MEMCPY Elapsed: 0.10666 MiB: 100.00000 Copy: 937.557 MiB/s
DUMB Elapsed: 0.06547 MiB: 100.00000 Copy: 1527.503 MiB/s
MCBLOCK Elapsed: 0.03526 MiB: 100.00000 Copy: 2835.850 MiB/s