[Bug 244356] Writing to a USB 3.0 stick is very slow

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Fri May 22 07:56:30 UTC 2020


https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=244356

--- Comment #74 from Maurizio <maurizio1018 at gmail.com> ---
Created attachment 214747
  --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=214747&action=edit
dd + iostat on UFS - DataTraveler G4 32GB

(In reply to Olivier Certner from comment #73)

Hi Olivier,

I have updated the script with the GEOM name:

#!/bin/sh
set -x
STICK_GEOM_NAME=da0
FILE_ON_STICK=/media/5ec77cd141597fbc/zero.bin
COUNT=1024
tmux new-window "script /tmp/dd.log dd if=/dev/zero of=$FILE_ON_STICK bs=1M
count=$COUNT; sleep 5; killall iostat"
tmux new-window "script /tmp/iostast.log iostat -w 1 $STICK_GEOM_NAME"
set +x

I have reformatted the stick as UFS and run the test 3 times.
Please let me know if you need more tests.

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