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From: Martin Steigerwald <Martin@lichtvoll.de>
To: linux-btrfs@vger.kernel.org
Subject: fstrim on BTRFS
Date: Wed, 28 Dec 2011 17:57:15 +0100	[thread overview]
Message-ID: <201112281757.16019.Martin@lichtvoll.de> (raw)

Hi!

With 3.2-rc4 (probably earlier), Ext4 seems to remember what areas it 
trimmed:

merkaba:~> fstrim -v /boot
/boot: 224657408 bytes were trimmed
merkaba:~> fstrim -v /boot
/boot: 0 bytes were trimmed


But BTRFS does not:

merkaba:~> fstrim -v /
/: 4431613952 bytes were trimmed
merkaba:~> fstrim -v /    
/: 4341846016 bytes were trimmed


Is it planned to add this feature to BTRFS as well?


I wish you a relaxed between Christmas and new year time,
-- 
Martin 'Helios' Steigerwald - http://www.Lichtvoll.de
GPG: 03B0 0D6C 0040 0710 4AFA  B82F 991B EAAC A599 84C7

             reply	other threads:[~2011-12-28 16:57 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-12-28 16:57 Martin Steigerwald [this message]
2011-12-29  4:02 ` fstrim on BTRFS Li Zefan
2011-12-29  4:21   ` Fajar A. Nugraha
2011-12-29  4:32     ` Fajar A. Nugraha
2011-12-29  4:37     ` Roman Mamedov
2011-12-29  4:42       ` Fajar A. Nugraha
2011-12-29  5:29         ` cwillu
2011-12-29 10:52   ` Martin Steigerwald
2012-01-03 21:05   ` Chris Mason
2011-12-29  4:29 ` Fajar A. Nugraha
2011-12-29  9:39   ` Li Zefan
2011-12-29  9:52     ` Fajar A. Nugraha
2011-12-30  6:19       ` Li Zefan
2011-12-30  6:35         ` Fajar A. Nugraha
  -- strict thread matches above, loose matches on Subject: below --
2014-10-31  0:21 Noah Massey

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