1 |
I'm testing this USB 3.0 bus-powered hard drive: |
2 |
|
3 |
http://www.amazon.com/gp/product/B0041OSQ9S |
4 |
|
5 |
and I get: |
6 |
|
7 |
# hdparm -tT /dev/sdb |
8 |
/dev/sdb: |
9 |
Timing cached reads: 8006 MB in 2.00 seconds = 4004.33 MB/sec |
10 |
Timing buffered disk reads: 252 MB in 3.01 seconds = 83.63 MB/sec |
11 |
|
12 |
# hdparm -tT /dev/sdb |
13 |
/dev/sdb: |
14 |
Timing cached reads: 8230 MB in 2.00 seconds = 4116.54 MB/sec |
15 |
Timing buffered disk reads: 252 MB in 3.02 seconds = 83.55 MB/sec |
16 |
|
17 |
# hdparm -tT /dev/sdb |
18 |
/dev/sdb: |
19 |
Timing cached reads: 8446 MB in 2.00 seconds = 4224.36 MB/sec |
20 |
Timing buffered disk reads: 230 MB in 3.02 seconds = 76.28 MB/sec |
21 |
|
22 |
Wikipedia says USB 3.0 has transmission speeds of up to 5 Gbit/s. |
23 |
Doesn't MB/sec denote mega*bytes* per second? |
24 |
|
25 |
- Grant |