From: Christian Rohmann <crohmann@netcologne.de>
To: Chris Murphy <lists@colorremedies.com>,
"Austin S. Hemmelgarn" <ahferroin7@gmail.com>
Cc: linux-btrfs <linux-btrfs@vger.kernel.org>
Subject: Re: btrfs-progs 4.4 re-balance of RAID6 is very slow / limited to one cpu core?
Date: Wed, 27 Jan 2016 09:48:18 +0100 [thread overview]
Message-ID: <56A88452.6020306@netcologne.de> (raw)
In-Reply-To: <CAJCQCtTMEHcc1CnuHqS=g23tsirQv3S9cmDcHaK0WXyQrRds1w@mail.gmail.com>
On 01/26/2016 09:20 PM, Chris Murphy wrote:
> nyway,
> it seems reasonable to try a balance without the filters to see if
> that's a factor, because those filters are brand new in btrfs-progs
> 4.4. Granted, I'd expect they've been tested by upstream developers,
> but I don't know if there's an fstest for balance with these specific
> filters yet.
I have another box with 8 disks RAID6 on which I simply did a balance
with no newly added drives. Same issue ... VERY slow running balance
with IO nowhere near 100% utilization and many many days of runtime to
finish.
Regards
Christian
next prev parent reply other threads:[~2016-01-27 8:48 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-01-22 13:38 btrfs-progs 4.4 re-balance of RAID6 is very slow / limited to one cpu core? Christian Rohmann
2016-01-22 14:51 ` Duncan
2016-01-24 2:30 ` Henk Slager
2016-01-25 11:34 ` Christian Rohmann
2016-01-25 22:13 ` Chris Murphy
[not found] ` <CAKZK7uxdX9UBPOKButtPjqBOdVUfHdRTimP+W34fkz1h9P+wHg@mail.gmail.com>
2016-01-26 0:44 ` Fwd: " Justin Brown
2016-01-26 5:17 ` Chris Murphy
2016-01-26 6:14 ` Chris Murphy
2016-01-26 8:54 ` Christian Rohmann
2016-01-26 19:26 ` Chris Murphy
2016-01-26 19:27 ` Chris Murphy
2016-01-26 19:57 ` Austin S. Hemmelgarn
2016-01-26 20:20 ` Chris Murphy
2016-01-27 8:48 ` Christian Rohmann [this message]
2016-01-27 16:34 ` Austin S. Hemmelgarn
2016-01-27 20:58 ` bbrendon
2016-01-27 21:53 ` Chris Murphy
2016-01-28 12:27 ` Austin S. Hemmelgarn
2016-02-01 14:10 ` Christian Rohmann
2016-02-01 20:52 ` Chris Murphy
2016-02-09 13:48 ` Christian Rohmann
2016-02-09 16:46 ` Marc MERLIN
2016-02-09 21:46 ` Chris Murphy
2016-02-10 2:23 ` Chris Murphy
2016-02-10 2:36 ` Chris Murphy
2016-02-10 13:19 ` Christian Rohmann
2016-02-10 19:16 ` Chris Murphy
2016-02-10 19:38 ` Chris Murphy
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