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

Khalid Baheyeldin kb at 2bits.com
Mon Sep 22 21:42:59 EDT 2014


On Mon, 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 was not testing for the sake of testing.

I actually needed to copy those files, and measured the copying process
(rsync -av outputs bytes/second).
-- 
Khalid M. Baheyeldin
2bits.com, Inc.
Fast Reliable Drupal
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For every complex problem, there is an answer that is clear, simple, and
wrong." -- H.L. Mencken
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