Grant <emailgr...@gmail.com> wrote:
> I'm testing this USB 3.0 bus-powered hard drive:
>
> http://www.amazon.com/gp/product/B0041OSQ9S
>
> and I get:
>
> # hdparm -tT /dev/sdb
> /dev/sdb:
> Timing cached reads: 8006 MB in 2.00 seconds = 4004.33 MB/sec
> Timing buffered disk reads: 252 MB in 3.01 seconds = 83.63 MB/sec
>
> # hdparm -tT /dev/sdb
> /dev/sdb:
> Timing cached reads: 8230 MB in 2.00 seconds = 4116.54 MB/sec
> Timing buffered disk reads: 252 MB in 3.02 seconds = 83.55 MB/sec
>
> # hdparm -tT /dev/sdb
> /dev/sdb:
> Timing cached reads: 8446 MB in 2.00 seconds = 4224.36 MB/sec
> Timing buffered disk reads: 230 MB in 3.02 seconds = 76.28 MB/sec
>
> Wikipedia says USB 3.0 has transmission speeds of up to 5 Gbit/s.
> Doesn't MB/sec denote mega*bytes* per second?
What usb3 is supported by Linux? Is it a pci card?
--
Your life is like a penny. You're going to lose it. The question is:
How do
you spend it?
John Covici
cov...@ccs.covici.com
