From: Hubert Kario <hka@qbs.com.pl>
To: Olivier Bonvalet <btrfs.list@daevel.fr>
Cc: linux-btrfs@vger.kernel.org
Subject: Re: btrfs-convert processing time
Date: Mon, 20 Feb 2012 14:50:02 +0100 [thread overview]
Message-ID: <1920178.zXOEpupmQW@k85hala03> (raw)
In-Reply-To: <4F424D8D.4030802@daevel.fr>
On Monday 20 of February 2012 14:41:33 Olivier Bonvalet wrote:
> On 20/02/2012 14:20, Hubert Kario wrote:
> > On Monday 20 of February 2012 13:51:29 Olivier Bonvalet wrote:
> >> Hi,
> >>=20
> >> I'm trying to convert two ext4 FS to btrfs, but I'm surprised by t=
he
> >> time needed to do that conversion.
> >>=20
> >> The first FS is on a 500GiB block device, and btrfs-convert is run=
ning
> >> since more than 48h :
> >> root 1978 25.6 47.7 748308 732556 ? D Feb18 944:44
> >> btrfs-convert /dev/vg-backup/backup
> >>=20
> >> The second is on a 340GiB block device, and the processing time is
> >> similar : root 30192 5.2 3.0 73180 61520 pts/0 R Feb1=
8
> >> 121:04 btrfs-convert /dev/vg-balor/backup
> >>=20
> >>=20
> >> Is it "normal", or is there a problem during the processing ?
> >>=20
> >> Thanks,
> >> Olivier
> >=20
> > How much free space did those FS have? How many files were on them =
(was
> > they dominated by small or large files)?
> >=20
> > Regards,
>=20
> Lot of small files (like compressed email from Maildir), and lot of
> hardlinks, and probably low free space (near 15% I suppose).
>=20
>=20
> So I think I have my answer :)
>=20
Yes, this is probably the worst possible combination.
Plese keep us updated. Just to have exact numbers for new users.
Regards,
--=20
Hubert Kario
QBS - Quality Business Software
02-656 Warszawa, ul. Ksawer=F3w 30/85
tel. +48 (22) 646-61-51, 646-74-24
www.qbs.com.pl
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next prev parent reply other threads:[~2012-02-20 13:50 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-02-20 12:51 btrfs-convert processing time Olivier Bonvalet
2012-02-20 13:20 ` Hubert Kario
2012-02-20 13:41 ` Olivier Bonvalet
2012-02-20 13:50 ` Hubert Kario [this message]
2012-02-20 14:00 ` Fajar A. Nugraha
2012-02-20 14:12 ` Hubert Kario
2012-02-20 14:29 ` Olivier Bonvalet
2012-02-21 5:51 ` Fajar A. Nugraha
2012-02-22 16:55 ` Olivier Bonvalet
2012-03-30 19:23 ` Olivier Bonvalet
2012-03-31 20:50 ` Hubert Kario
2012-02-20 13:21 ` Hubert Kario
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