linux-kernel - Re: [rfc] Ignore Fsync Calls in Laptop

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Message-ID: <20211.1306830145@turing-police.cc.vt.edu>
Date:	Tue, 31 May 2011 04:22:25 -0400
From:	Valdis.Kletnieks@...edu
To:	"D. Jansen" <d.g.jansen@...glemail.com>
Cc:	david@...g.hm, Theodore Tso <tytso@....edu>,
	Oliver Neukum <oneukum@...e.de>, akpm@...ux-foundation.org,
	linux-kernel@...r.kernel.org, Dave Chinner <david@...morbit.com>,
	njs@...ox.com, bart@...wel.tk
Subject: Re: [rfc] Ignore Fsync Calls in Laptop_Mode

On Mon, 30 May 2011 23:24:03 +0200, "D. Jansen" said:

> > do you really have so many fsync's going on that the disk spins up so much
> > that you would gain 10-20% battery life?
> 
> Yes. Every autosave in LibreOffice triggers one. And I want autosave,
> but I want them in memory, not on disk.

I think what you want from autosave isn't what the LibreOffice team wants
from autosave.  Remember, if they're in memory, they aren't *really* saved.

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