Public bug reported:
Binary package hint: virtualbox-ose
Creating small fixed size VDI images is OK; but as the size of the image grows,
the time required grows exponentially as can be seen from the console grab
below.
If I project these data up to 20 GiB size, that should take 14 hrs !
It basically takes so long, with VboxSVC hangs with 100% CPU that you might as
well think that the computer stops, see Bug #352248.
This is really weird since the created file must be pretty much full of
zeros, as the size of the bz2-compressed file shows (compression ratio =
1e6)
pao...@zzzzzzzzzz:~/.VirtualBox/HardDisks$ time VBoxManage createhd --filename
testimage.vdi --size 10 --variant Fixed
Sun VirtualBox Command Line Management Interface Version 3.1.6_OSE
(C) 2005-2010 Sun Microsystems, Inc.
All rights reserved.
0%...10%...20%...30%...40%...50%...60%...70%...80%...90%...100%
Disk image created. UUID: dd5d9434-a8bf-47d0-a437-e59b5ab4edd2
real 0m0.677s
user 0m0.012s
sys 0m0.012s
pao...@zzzzzzzzzz:~/.VirtualBox/HardDisks$ rm testimage.vdi
pao...@zzzzzzzzzz:~/.VirtualBox/HardDisks$ time VBoxManage createhd --filename
testimage.vdi --size 100 --variant Fixed
Sun VirtualBox Command Line Management Interface Version 3.1.6_OSE
(C) 2005-2010 Sun Microsystems, Inc.
All rights reserved.
0%...10%...20%...30%...40%...50%...60%...70%...80%...90%...100%
Disk image created. UUID: ae0a7328-cd03-455c-9363-600950347a45
real 0m4.861s
user 0m0.012s
sys 0m0.032s
pao...@zzzzzzzzzz:~/.VirtualBox/HardDisks$ rm testimage.vdi
pao...@zzzzzzzzzz:~/.VirtualBox/HardDisks$ time VBoxManage createhd --filename
testimage.vdi --size 1000 --variant Fixed
Sun VirtualBox Command Line Management Interface Version 3.1.6_OSE
(C) 2005-2010 Sun Microsystems, Inc.
All rights reserved.
0%...10%...20%...30%...40%...50%...60%...70%...80%...90%...100%
Disk image created. UUID: 7f14597a-0256-4113-9c83-6703caad1cfc
real 0m31.489s
user 0m0.052s
sys 0m0.096s
pao...@zzzzzzzzzz:~/.VirtualBox/HardDisks$ rm testimage.vdi
pao...@zzzzzzzzzz:~/.VirtualBox/HardDisks$ time VBoxManage createhd --filename
testimage.vdi --size 2000 --variant Fixed
Sun VirtualBox Command Line Management Interface Version 3.1.6_OSE
(C) 2005-2010 Sun Microsystems, Inc.
All rights reserved.
0%...10%...20%...30%...40%...50%...60%...70%...80%...90%...100%
Disk image created. UUID: 23c2c1da-320b-454a-a1c2-5a25cb21df7b
real 2m13.335s
user 0m0.316s
sys 0m0.440s
pao...@zzzzzzzzzz:~/.VirtualBox/HardDisks$ rm testimage.vdi
pao...@zzzzzzzzzz:~/.VirtualBox/HardDisks$ time VBoxManage createhd --filename
testimage.vdi --size 3000 --variant Fixed
Sun VirtualBox Command Line Management Interface Version 3.1.6_OSE
(C) 2005-2010 Sun Microsystems, Inc.
All rights reserved.
0%...10%...20%...30%...40%...50%...60%...70%...80%...90%...100%
Disk image created. UUID: 2dd17c56-723b-47d3-bc0f-d7ffedcec8f7
real 3m38.469s
user 0m0.488s
sys 0m0.688s
pao...@zzzzzzzzzz:~/.VirtualBox/HardDisks$ ls -al
...
-rw------- 1 paolog paolog 3145740800 2010-06-18 09:11 testimage.vdi
...
pao...@zzzzzzzzzz:~/.VirtualBox/HardDisks$ bzip2 testimage.vdi
pao...@zzzzzzzzzz:~/.VirtualBox/HardDisks$ ls -al
...
-rw------- 1 paolog paolog 3948 2010-06-18 09:11 testimage.vdi.bz2
ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: virtualbox-ose 3.1.6-dfsg-2ubuntu2
ProcVersionSignature: Ubuntu 2.6.32-22.36-generic-pae 2.6.32.11+drm33.2
Uname: Linux 2.6.32-22-generic-pae i686
Architecture: i386
Date: Fri Jun 18 09:20:13 2010
EcryptfsInUse: Yes
InstallationMedia: Kubuntu 10.04 LTS "Lucid Lynx" - Release i386 (20100427)
ProcEnviron:
LANGUAGE=
LANG=it_IT.UTF-8
SHELL=/bin/bash
SourcePackage: virtualbox-ose
** Affects: virtualbox-ose (Ubuntu)
Importance: Undecided
Status: New
--
VBoxManage createhd --variant Fixed does not scale well with image size
https://bugs.launchpad.net/bugs/595820
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