From mboxrd@z Thu Jan  1 00:00:00 1970
From: Rolf Fokkens <rolf-6w2rdlBuEQTpMFipWq+H6g@public.gmane.org>
Subject: Re: [RFC] bcache-status
Date: Wed, 04 Sep 2013 22:52:53 +0200
Message-ID: <52279DA5.7050505@rolffokkens.nl>
References: <521A55D4.20908@rolffokkens.nl> <521A6B92.60001@rolffokkens.nl> <20130826163055.GB4780@blackbox.djwong.org> <521BBC3B.9010003@rolffokkens.nl> <20130829004646.GA3099@blackbox.djwong.org> <52264AAD.3050401@rolffokkens.nl> <20130904202600.GA4554@blackbox.djwong.org>
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To: "Darrick J. Wong" <darrick.wong-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org>
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I'm not sure if I understand.

On 09/04/2013 10:26 PM, Darrick J. Wong wrote:
> Yeah... I calculate total cache size, then cache-used = cache-size * whatever
> percentage bcache reports.  It won't add up exactly due to rounding errors.
> 0.999 -> 1.00.  That's rather a lot, really.
Is the following (snippet of the output I sent) the result of rounding 
errors?

Total Cache Size            1.00GiB
Total Cache Used            204.00MiB    (10%)
Total Cache Unused          1.00GiB    (90%)

I mean: the percentages are 10% and 90%..

>> - "Dirty Data" is -6 MB?
> I think this was fixed in 3.11.
OK, so that is a kernel issue.