Boston Linux & Unix (BLU) Home | Calendar | Mail Lists | List Archives | Desktop SIG | Hardware Hacking SIG
Wiki | Flickr | PicasaWeb | Video | Maps & Directions | Installfests | Keysignings
Linux Cafe | Meeting Notes | Blog | Linux Links | Bling | About BLU

BLU Discuss list archive

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

[Discuss] USB speeds

Two factors come immediately to mind, neither of which have anything to 
do with the bus.

On Unix, file systems are mounted asynchronously by default.  I've seen 
this cause horrible performance degradation on USB flash media.  Try 
mounting sync instead.

You neglected to specify a block size so dd defaults to 512 byte blocks. 
  This is horribly inefficient.  Try powers of 2 starting at 1MB to find 
an optimal value.

Rich P.

BLU is a member of BostonUserGroups
BLU is a member of BostonUserGroups
We also thank MIT for the use of their facilities.

Valid HTML 4.01! Valid CSS!

Boston Linux & Unix /