is there usb bandwidth mearing tool?

[Hendrik Sattler]

Zitat von loody <miloody at gmail.com>:
> When I drag files from/to usb flash on my ubuntu, I can see there is a file
> operation dialog which tells me how fast it is right now.
> Like 20Mbytes/s,etc.
> How does ubuntu do that?

I guess they just count the number of bytes accepted by write(),  
devided by the time from the start of the operation. All done in  
userspace. It doesn't necessarily mean that this is the rate that the  
data is written to disk.

HS