linux-kernel - Re: GIT PULL] ext4 updates for 3.4

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Message-ID: <m2y5qhyfly.fsf@firstfloor.org>
Date:	Fri, 30 Mar 2012 13:54:17 -0700
From:	Andi Kleen <andi@...stfloor.org>
To:	Linus Torvalds <torvalds@...ux-foundation.org>
Cc:	"Theodore Ts'o" <tytso@....edu>, linux-ext4@...r.kernel.org,
	linux-kernel@...r.kernel.org, Jan Kara <jack@...e.cz>,
	Fengguang Wu <fengguang.wu@...el.com>
Subject: Re: GIT PULL] ext4 updates for 3.4

Linus Torvalds <torvalds@...ux-foundation.org> writes:

> On Mon, Mar 26, 2012 at 11:07 AM, Theodore Ts'o <tytso@....edu> wrote:
>>
>> Ext4 commits for 3.3 merge window; mostly cleanups and bug fixes
>
> Ted, is there any chance that the dirty handling (or something else)
> has some serious latency bug?

There's at least a serious scalability bug. That new extent cache 
statistic count in the super block is showing up badly on IO profiles
on larger systems.

-Andi

-- 
ak@...ux.intel.com -- Speaking for myself only
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