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From: A L <crimsoncottage@gmail.com>
To: linux-btrfs@vger.kernel.org
Subject: Re: Is autodefrag recommended?
Date: Tue, 5 Sep 2017 14:36:06 +0200 (GMT+02:00)	[thread overview]
Message-ID: <967c296.1c5a576e.15e520a6623@gmail.com> (raw)
In-Reply-To: <710ec5d1-adbf-4ce5-50a5-8b8266ccb672@rqc.ru>

There is a drawback in that defragmentation re-dups data that is previously deduped or shared in snapshots/subvolumes.

---- From: Marat Khalili <mkh@rqc.ru> -- Sent: 2017-09-04 - 11:31 ----

> Hello list,
> good time of the day,
> 
> More than once I see mentioned in this list that autodefrag option 
> solves problems with no apparent drawbacks, but it's not the default. 
> Can you recommend to just switch it on indiscriminately on all 
> installations?
> 
> I'm currently on kernel 4.4, can switch to 4.10 if necessary (it's 
> Ubuntu that gives us this strange choice, no idea why it's not 4.9). 
> Only spinning rust here, no SSDs.
> 
> --
> 
> With Best Regards,
> Marat Khalili
> --
> To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html



  parent reply	other threads:[~2017-09-05 12:36 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-09-04  9:31 Is autodefrag recommended? Marat Khalili
2017-09-04 10:23 ` Henk Slager
2017-09-04 10:34 ` Duncan
2017-09-04 11:09   ` Henk Slager
2017-09-04 22:27     ` Duncan
2017-09-04 10:54 ` Hugo Mills
2017-09-05 11:45   ` Austin S. Hemmelgarn
2017-09-05 12:49     ` Henk Slager
2017-09-05 13:00       ` Austin S. Hemmelgarn
2017-09-05 12:36 ` A L [this message]
2017-09-05 14:01 ` Is autodefrag recommended? -- re-duplication??? Marat Khalili
2017-09-05 14:39   ` Hugo Mills

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