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Subject: [Bug 212681] I/O is slow for FreeBSD DOMu on XenServer
Date: Mon, 06 Feb 2017 09:15:13 +0000
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D212681

--- Comment #21 from rainer@ultra-secure.de ---
Still a problem on FreeBSD 12:

root@f12test:~ # dc3dd wipe=3D/dev/ada1

dc3dd 7.2.641 started at 2017-02-06 10:12:31 +0100
compiled options:
command line: dc3dd wipe=3D/dev/ada1
device size: 104857600 sectors (probed),   53,687,091,200 bytes
sector size: 512 bytes (probed)
  1153433600 bytes ( 1.1 G ) copied (  2% ),  131 s, 8.4 M/s=20=20=20=20=20=
=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20

input results for pattern `00':
   2252800 sectors in

output results for device `/dev/ada1':
   2252800 sectors out

dc3dd aborted at 2017-02-06 10:14:42 +0100

root@f12test:~ # uname -a
FreeBSD f12test 12.0-CURRENT FreeBSD 12.0-CURRENT #0 r313113: Fri Feb  3
01:47:24 UTC 2017     root@releng3.nyi.freebsd.org:/usr/obj/usr/src/sys/GEN=
ERIC
 amd64

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