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List: kde-pim
Subject: [Kde-pim] Review Request: Optimize ChangeRecorder to only update 8 bytes on disk when dequeuing.
From: "David Faure" <faure () kde ! org>
Date: 2012-10-19 13:33:29
Message-ID: 20121019133329.25966.77027 () vidsolbach ! de
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This is an automatically generated e-mail. To reply, visit:
http://git.reviewboard.kde.org/r/106950/
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Review request for Akonadi, Volker Krause and Andras Mantia.
Description
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Optimize ChangeRecorder to only update 8 bytes on disk when dequeuing.
Rather than saving the whole file (of pending notifications) every
time, just because the first item was dequeued. This reduces disk I/O
considerably, and speeds up processing (especially in the nepomuk
feeder). In the IMAP resource (when marking 2000 emails as read) I
couldn't time a difference since it's mostly network-based anyway.
But at least the disk is usable by other processes meanwhile ;)
This addresses bug 300572.
http://bugs.kde.org/show_bug.cgi?id=300572
Diffs
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akonadi/changerecorder.cpp c3d3640679a9a679449fa6f0ce1a34a9d79cf351
akonadi/changerecorder_p.h 1100579aaa6beb53725bb5fc96e2e5c356cbab54
akonadi/changerecorder_p.cpp 6582ba4e8391bf77686e4feabf06b4bdf6c1bfc3
Diff: http://git.reviewboard.kde.org/r/106950/diff/
Testing
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changerecorder and monitornotification unit tests [is there any other that might apply?]
Applying the patch and restarting akonadi (existing files get converted to new format).
Running with the patch for a few days.
Marking 2000 emails as read.
Watching nepomukfeeder process all pending notifications.
Thanks,
David Faure
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