[kwlug-disc] USB 2.0 vs. 3.0 on Linux

[Andrew Kohlsmith (mailing lists account)]

On Sep 22, 2014, at 8:53 PM, William Park <opengeometry at yahoo.ca> wrote:
> For sequential write, I usually do
> 
>    - dd if=/dev/zero of=/dev/sdX bs=32M oflag=direct
>    - sg_dd if=/dev/zero of=/dev/sdX blk_sgio=1 time=1
> 
> After a shot of expresso or two, send USR1 to the process to get some
> stats.

I never thought to give the machine a shot of espresso or two to get it going. Is this only required in the morning, or at anytime during the day? Does your machine have trouble sleeping at night if you give it the espresso too late in the day?

-A.