linux-ext4 - Re: [PATCH] libext2fs: readahead for meta

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Message-ID: <20170301200525.glbundivrfmmopli@thunk.org>
Date:   Wed, 1 Mar 2017 15:05:26 -0500
From:   Theodore Ts'o <tytso@....edu>
To:     Artem Blagodarenko <artem.blagodarenko@...il.com>
Cc:     linux-ext4@...r.kernel.org, adilger.kernel@...ger.ca,
        alexey.lyashkov@...il.com
Subject: Re: [PATCH] libext2fs: readahead for meta_bg

On Mon, Feb 20, 2017 at 01:03:45PM +0300, Artem Blagodarenko wrote:
> From: Alexey Lyashkov <alexey.lyashkov@...gate.com>
> 
> There are ~37k of random IOs with meta_bg option on 300T target.
> Debugfs requires 20 minutes to be started. Enabling readahead for
> group blocks metadata save time dramatically. Only 12s to start.
> 
> Signed-off-by: Alexey Lyashkov <alexey.lyashkov@...gate.com>

Applied, thanks!

					- Ted