[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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Simplicity is prerequisite for reliability. -- Edsger W.Dijkstra
Simplicity is the ultimate sophistication. -- Leonardo da Vinci
For every complex problem, there is an answer that is clear, simple, and
wrong." -- H.L. Mencken
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