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40 18 Jan 2010 10:35:11 -0800 (PST)
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41 In-Reply-To: <87d41ce0qf.fsf@yoom.home.cworth.org>
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42 References: <5641883d1001140730l22832715ld6bdc95c9938d314@mail.gmail.com>
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43 <87d41ce0qf.fsf@yoom.home.cworth.org>
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44 Date: Mon, 18 Jan 2010 18:35:11 +0000
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45 Message-ID: <5641883d1001181035j534d8f5cxc3b5b0db315ff290@mail.gmail.com>
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46 From: Oliver Charles <oliver.g.charles@googlemail.com>
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47 To: Carl Worth <cworth@cworth.org>
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50 Cc: notmuch@notmuchmail.org
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51 Subject: Re: [notmuch] Notmuch performance problems on OSX
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66 On Thu, Jan 14, 2010 at 11:16 PM, Carl Worth <cworth@cworth.org> wrote:
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67 > Hi Oliver, welcome to notmuch!
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69 > On Thu, 14 Jan 2010 15:30:48 +0000, Oliver Charles <oliver.g.charles@goog=
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71 >> I've installed the latest notmuch from Git at this time of writing,
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72 >> along with Xapian from SVN head. However, just tagging a single thread
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73 >> with only one message seems to take too long:
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75 >> $ time notmuch tag +dissertation thread:7dc536441e6deade4256a46d46451221
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81 > Things work quite a bit faster than that on my machine:
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83 > $ time notmuch tag +foo id:5641883d1001140730l22832715ld6bdc95c9938d314@m=
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86 > real =A0 =A00m0.024s
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87 > user =A0 =A00m0.012s
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88 > sys =A0 =A0 0m0.004s
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90 > But that could just be system differences.
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92 Possibly, though my machine is more than capable of what it's doing -
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93 a Q6600 with 4gb RAM
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95 >> And tagging all my messages is really horrible:
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97 >> $ time notmuch tag +foobar tag:inbox
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100 >> user =A00m3.688s
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101 >> sys =A0 0m0.105s
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103 > For this operation, I can't really compare. How many messages are you
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104 > tagging? Here's that operation for me with 525 messages in my inbox:
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106 A few thousand (4k, I believe)
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108 >> That xapian-svn was built from svn HEAD right now, so I'm assuming it
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109 >> contains the #250 fix (http://trac.xapian.org/changeset/13808)
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111 > Which I think means that things could have been even *much* slower
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114 > The Xapian defect #250 was just one, initial (and obvious) performance
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115 > problem. [Though, as I mentioned in a previous thread, if you're using a
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116 > Xapian flint database, (look for .notmuch/xapian/iamflint), then you
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117 > won't get the benefit of the Xapian fix until you rebuild your notmuch
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118 > database from scratch with a current notmuch.]
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120 I didn't know about this need to rebuild, but I tried that and didn't
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121 have any more success sadly.
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123 > Once you've verified that you've got the #250 fix functional, there
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124 > could still be lots of performance bugs. And it would be time to start
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129 I'm pressed for time at the moment, but in a few weeks I might have
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130 some time to investigate here...
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133 Oliver Charles / aCiD2
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