system response issue

Patrick O'Callaghan pocallaghan at gmail.com
Mon Jul 13 21:13:02 UTC 2015


On Mon, 2015-07-13 at 13:50 -0600, jd1008 wrote:
> I started a tar command from
> one external eSATA drive (ext4), connected to eSATA port,
> out to a USB flash drive (with vfat). The USB stick is touted
> to support 50MB/s write, 160MB/s read.

Have you actually measured its real write speed for large files? Try
something like:

time dd if=/dev/zero of=/the/usb/drive count=1000 bs=1M

You might be surprised.

poc


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