From mboxrd@z Thu Jan  1 00:00:00 1970
From: NeilBrown <neilb@suse.com>
Subject: Re: RAID6 rebuild oddity
Date: Thu, 30 Mar 2017 12:53:33 +1100
Message-ID: <87r31f5y3m.fsf@notabene.neil.brown.name>
References: <9eb215dd-437e-ac62-c4df-f3307d8fc4b4@fnarfbargle.com> <87zig467z3.fsf@notabene.neil.brown.name> <5584b8b1-b4f1-0d2e-cbf3-f14b4127d031@fnarfbargle.com> <87wpb7612w.fsf@notabene.neil.brown.name> <a8ad0de2-5cec-1e70-0fff-1df911a02932@fnarfbargle.com>
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In-Reply-To: <a8ad0de2-5cec-1e70-0fff-1df911a02932@fnarfbargle.com>
Sender: linux-raid-owner@vger.kernel.org
To: Brad Campbell <lists2009@fnarfbargle.com>, Linux-RAID <linux-raid@vger.kernel.org>
Cc: Dan Williams <dan.j.williams@intel.com>
List-Id: linux-raid.ids

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On Thu, Mar 30 2017, Brad Campbell wrote:

>        [=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D>......]  recovery =3D =
72.0% (4222847296/5860391360)=20
> finish=3D541.6min speed=3D50382K/sec
...
>        [=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D>......]  recovery =3D =
73.3% (4297641980/5860391360)=20
> finish=3D284.7min speed=3D91465K/sec
>

>
> So that has significantly increased the rebuild speed, as you would expec=
t.
>

Not quite twice as fast, but close!
Everyone has been suffering with that poor speed for years and nobody
noticed until you did.  Thanks for being thorough!  And thanks for
confirming the patch.

NeilBrown

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