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40 References: <87633wlrrk.fsf@SSpaeth.de>
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41 <87tyrgeopc.fsf@servo.finestructure.net> <87iq7wpubw.fsf@SSpaeth.de>
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42 <87ljcsr3tu.fsf@willster.local.flamingspork.com>
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43 <m3sk705zr0.fsf@x200.gr8dns.org>
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44 Date: Mon, 12 Apr 2010 19:10:25 -0400
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47 Message-ID: <w2ib22065d01004121610m15069cfdx67e8e06d05d6cd9@mail.gmail.com>
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48 Subject: Re: please eat my data!
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49 From: Servilio Afre Puentes <servilio@gmail.com>
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50 To: Dirk Hohndel <hohndel@infradead.org>
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67 On 12 April 2010 13:47, Dirk Hohndel <hohndel@infradead.org> wrote:
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68 > On Mon, 12 Apr 2010 10:14:05 -0700, Stewart Smith <stewart@flamingspork.com> wrote:
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69 >> On Mon, 12 Apr 2010 17:24:35 +0200, "Sebastian Spaeth" <Sebastian@SSpaeth.de> wrote:
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70 >> > What I find intersting is that we have a 2x speedup and a 10x speedup
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71 >> > for different queries. Olly was saying on IRC that both *should* really be
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72 >> > behaving in much the same manner.
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74 >> Remember that on ext3 (and pretty sure ext4) fsync is the same as
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75 >> sync(). So performance depends on how much dirty data you have in your cache.
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77 >> libeatmydata also gets rid of msync(), O_SYNC etc as well.
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79 > Which is why so many of us have started to use BTRFS...
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81 How stable is it now? What kernel version and distro are you using?
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