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This is an automatically generated e-mail. To reply, visit:
<a href="http://git.reviewboard.kde.org/r/105892/">http://git.reviewboard.kde.org/r/105892/</a>
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<p>Ship it!</p>
<pre style="white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">Apart from the little superfluous return the patch is fine. I did not read it properly before. Who would have through that storing dir iterators instead of by arrays would make sure a difference?</pre>
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<a href="http://git.reviewboard.kde.org/r/105892/diff/2/?file=76298#file76298line170" style="color: black; font-weight: bold; text-decoration: underline;">services/filewatch/kinotify.cpp</a>
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(Diff revision 2)
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<td colspan="4"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">public:</pre></td>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "></pre></td>
<th bgcolor="#b1ebb0" style="border-left: 1px solid #C0C0C0; border-right: 1px solid #C0C0C0;" align="right"><font size="2">156</font></th>
<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="n">kDebug</span><span class="p">()</span> <span class="o"><<</span> <span class="s">"Done adding watches"</span><span class="p">;</span></pre></td>
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<pre style="margin-left: 2em; white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">I dont think this is necessary. Originally the method would return here if addWatchesRec would return false. The dirIterators list is also checked below.</pre>
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<p>- Sebastian</p>
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<p>On August 6th, 2012, 10:03 a.m., Vishesh Handa wrote:</p>
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<div>Review request for Nepomuk and Sebastian Trueg.</div>
<div>By Vishesh Handa.</div>
<p style="color: grey;"><i>Updated Aug. 6, 2012, 10:03 a.m.</i></p>
<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Description </h1>
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<pre style="margin: 0; padding: 0; white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;"> kinotify: Do not store the paths to be added
kinotify used a QQueue<QByteArray> to store all the directories which
need to be added. Since we use QDirIterator, each path is presented as a
QString which is then encoded to its QByteArray (QFile::encodeName).
This results in *large* chunks of memory being allocated, and then
slowly being deallocated.
Instead, we now use a QDirIterator, and do not store all the directories
which need to be added, we simply iterate over them. This way we do not
allocate large amounts of memory.
There is a large performance improvement as well. On my system, with
38829 directories, adding all the watches now takes only about 10 seconds,
instead of about 65.
Patch possible due to massif output provided by Jure Repinc <jlp@holodeck1.com>.
Thanks a lot.
tldr: Use DFS instead of BFS -> Less memory consumption
BUG: 304476
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<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Testing </h1>
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<pre style="margin: 0; padding: 0; white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">kinotify tests pass successfully.</pre>
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<b style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Bugs: </b>
<a href="http://bugs.kde.org/show_bug.cgi?id=304476">304476</a>
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<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Diffs</b> </h1>
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<li>services/filewatch/kinotify.cpp <span style="color: grey">(e8843c8)</span></li>
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<p><a href="http://git.reviewboard.kde.org/r/105892/diff/" style="margin-left: 3em;">View Diff</a></p>
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