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25 From: Dirk Hohndel <hohndel@infradead.org>
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26 To: Servilio Afre Puentes <servilio@gmail.com>
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27 Subject: Re: please eat my data!
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28 In-Reply-To: <w2ib22065d01004121610m15069cfdx67e8e06d05d6cd9@mail.gmail.com>
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29 References: <87633wlrrk.fsf@SSpaeth.de>
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30 <87tyrgeopc.fsf@servo.finestructure.net> <87iq7wpubw.fsf@SSpaeth.de>
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31 <87ljcsr3tu.fsf@willster.local.flamingspork.com>
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32 <m3sk705zr0.fsf@x200.gr8dns.org>
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33 <w2ib22065d01004121610m15069cfdx67e8e06d05d6cd9@mail.gmail.com>
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34 Date: Mon, 12 Apr 2010 16:35:28 -0700
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55 On Mon, 12 Apr 2010 19:10:25 -0400, Servilio Afre Puentes <servilio@gmail.com> wrote:
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56 > On 12 April 2010 13:47, Dirk Hohndel <hohndel@infradead.org> wrote:
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57 > > On Mon, 12 Apr 2010 10:14:05 -0700, Stewart Smith <stewart@flamingspork.com> wrote:
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58 > >> On Mon, 12 Apr 2010 17:24:35 +0200, "Sebastian Spaeth" <Sebastian@SSpaeth.de> wrote:
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59 > >> > What I find intersting is that we have a 2x speedup and a 10x speedup
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60 > >> > for different queries. Olly was saying on IRC that both *should* really be
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61 > >> > behaving in much the same manner.
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63 > >> Remember that on ext3 (and pretty sure ext4) fsync is the same as
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64 > >> sync(). So performance depends on how much dirty data you have in your cache.
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66 > >> libeatmydata also gets rid of msync(), O_SYNC etc as well.
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68 > > Which is why so many of us have started to use BTRFS...
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70 > How stable is it now? What kernel version and distro are you using?
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72 Several. Fedora 12 with 2.6.34-rc3. Moblin-2.1 (derivative) with 2.6.33.
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73 Debian sid with 2.6.33
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75 I've been using it for most everything I do since some point in the
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82 Intel Open Source Technology Center
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