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Re: Ext4 performance regression: Post 2.6.30

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From: Greg Freemyer
Subject: Re: Ext4 performance regression: Post 2.6.30
Date: Monday, March 29, 2010 - 8:10 am

On Mon, Mar 29, 2010 at 2:25 AM, Keith Mannthey <kmannth@us.ibm.com> wrote:

Is mdraid involved?

They added barrier support for some configs after 2.6.30 I believe.
It can cause a drastic perf change, but it increases reliability and
is "correct".

Greg
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Messages in current thread:
Ext4 performance regression: Post 2.6.30, Keith Mannthey, (Sun Mar 28, 11:25 pm)
Re: Ext4 performance regression: Post 2.6.30, Greg Freemyer, (Mon Mar 29, 8:10 am)
Re: Ext4 performance regression: Post 2.6.30, Keith Mannthey, (Tue Mar 30, 6:56 pm)
Re: Ext4 performance regression: Post 2.6.30, Eric Sandeen, (Tue Mar 30, 9:06 pm)
Re: Ext4 performance regression: Post 2.6.30, Keith Mannthey, (Wed Mar 31, 3:02 pm)
Re: Ext4 performance regression: Post 2.6.30, Greg Freemyer, (Wed Mar 31, 3:06 pm)
Re: Ext4 performance regression: Post 2.6.30, Keith Mannthey, (Wed Mar 31, 3:14 pm)
Re: Ext4 performance regression: Post 2.6.30, Greg Freemyer, (Wed Mar 31, 3:55 pm)