linux-ext4 - Re: EXT4 Statistics

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Message-ID: <20151229152301.GD3248@thunk.org>
Date:	Tue, 29 Dec 2015 10:23:01 -0500
From:	Theodore Ts'o <tytso@....edu>
To:	funky.shelf@...il.com
Cc:	"linux-ext4@...r.kernel.org" <linux-ext4@...r.kernel.org>
Subject: Re: EXT4 Statistics

On Mon, Dec 28, 2015 at 02:23:54PM -0800, funky.shelf@...il.com wrote:
> Would it be possible to store the number of successful read and
> write operations that a regular file witnesses during its lifetime?
> I'm sorry if this question has been asked before. If the information
> is already available, where may one find it?

Ext4 doesn't currently do this; if it did it would be a performance
disaster, so it's not likely that it's something we would add.

Why would you want such a thing?  What are you trying to do?

						- Ted
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