linux-kernel - Re: btrfs: 21 minutes to read 1.2M file directory

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Message-ID: <AANLkTikjuoiCJvbBTLuyh3-d=QRyVVdatc4Ybcx5UOdf@mail.gmail.com>
Date:	Tue, 21 Dec 2010 03:07:33 +0200
From:	Felipe Contreras <felipe.contreras@...il.com>
To:	Andy Isaacson <adi@...apodia.org>
Cc:	linux-kernel@...r.kernel.org, linux-btrfs@...r.kernel.org
Subject: Re: btrfs: 21 minutes to read 1.2M file directory

On Tue, Dec 21, 2010 at 12:24 AM, Andy Isaacson <adi@...apodia.org> wrote:
> I have a directory with 1.2M files in it, which makes readdir very slow
> on btrfs with cold caches (although it's reasonably fast with hot caches
> as in the first example below):

Sounds like:

Bug 21562 - btrfs is dead slow due to fragmentation
https://bugzilla.kernel.org/show_bug.cgi?id=21562

-- 
Felipe Contreras
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