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This is an automatically generated e-mail. To reply, visit:
<a href="http://git.reviewboard.kde.org/r/108914/">http://git.reviewboard.kde.org/r/108914/</a>
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<p style="margin-top: 0;">On February 11th, 2013, 11:26 p.m. UTC, <b>Andreas Pakulat</b> wrote:</p>
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<a href="http://git.reviewboard.kde.org/r/108914/diff/1/?file=113723#file113723line58" style="color: black; font-weight: bold; text-decoration: underline;">outputview/outputmodel.cpp</a>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="n">m_timer</span><span class="o">-></span><span class="n">setInterval</span><span class="p">(</span><span class="n">m_maxProcessDelay</span><span class="p">);</span></pre></td>
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<pre style="white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">Why this timer for processing? Whats wrong with blocking the event loop until a set of lines is done?</pre>
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<pre style="margin-left: 1em; white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">The idea is that the cache is more likely to be filled with lines, in turn reducing the number of calls to beginInsertRow() later on.</pre>
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<p style="margin-top: 0;">On February 11th, 2013, 11:26 p.m. UTC, <b>Andreas Pakulat</b> wrote:</p>
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<a href="http://git.reviewboard.kde.org/r/108914/diff/1/?file=113723#file113723line59" style="color: black; font-weight: bold; text-decoration: underline;">outputview/outputmodel.cpp</a>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="n">m_timer</span><span class="o">-></span><span class="n">setSingleShot</span><span class="p">(</span><span class="nb">true</span><span class="p">);</span></pre></td>
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<pre style="white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">This contradicts the interval-thing, please decide wether you want a single-shot timer that is restarted manually or one that runs in an interval.</pre>
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<pre style="margin-left: 1em; white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">Why is that an issue? Interval sets the timeout delay of the timer, single shot defines whether it is restarted or not. They are not mutually exclusive.</pre>
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<p style="margin-top: 0;">On February 11th, 2013, 11:26 p.m. UTC, <b>Andreas Pakulat</b> wrote:</p>
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<a href="http://git.reviewboard.kde.org/r/108914/diff/1/?file=113723#file113723line180" style="color: black; font-weight: bold; text-decoration: underline;">outputview/outputmodel.cpp</a>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="n">parsingThread</span><span class="o">-></span><span class="n">wait</span><span class="p">();</span></pre></td>
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<pre style="white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">I can't find anything about this in the Qt docs at the moment, but does QThread actually support "restarting" the thread? I thought I once read that this is not really supported (might work or not), but maybe my recollection is wrong.</pre>
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<pre style="margin-left: 1em; white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">Seems to be fine, and worksforme. Related: http://www.qtcentre.org/threads/6548-Multiple-start()-on-same-QThread-Object.</pre>
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<p style="margin-top: 0;">On February 11th, 2013, 11:26 p.m. UTC, <b>Andreas Pakulat</b> wrote:</p>
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<a href="http://git.reviewboard.kde.org/r/108914/diff/1/?file=113723#file113723line199" style="color: black; font-weight: bold; text-decoration: underline;">outputview/outputmodel.cpp</a>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="n">m_sleepTimer</span><span class="p">.</span><span class="n">setInterval</span><span class="p">(</span><span class="mi">10000</span><span class="p">);</span></pre></td>
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<pre style="white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">Hmm, what happens if the timer times out, but there are still queued lines in the thread? i.e. the thread is currently working on some lines when its event loop is being exited. Since the event-queue is local in QThread::run() (IIRC) all the still-queued things would be lost in this case.
So I guess whats needed here is for the outputmodel to keep track of how many lines that where sent to the thread have been finished and if all are done, then start the timer to shut down the thread.</pre>
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<pre style="margin-left: 1em; white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">Not an issue. ParseWorker::process() does not return to the event-loop until *all* items were processed.</pre>
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<p>- Kevin</p>
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<p>On February 11th, 2013, 10:11 p.m. UTC, Kevin Funk wrote:</p>
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<div>Review request for KDevelop.</div>
<div>By Kevin Funk.</div>
<p style="color: grey;"><i>Updated Feb. 11, 2013, 10:11 p.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;">Thread for OutputModel contents filtering.
Fixes performance issues in the OutputView tool view when inserting (and filtering) a large number of lines.
As discussed in IRC.
The patch consists of 6 commits which were pulled from the wip/filter_output_threaded branch.</pre>
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<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Diffs</b> </h1>
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<li>outputview/filtereditem.h <span style="color: grey">(8eab5e9d6dbefefc203884291f6894ca2a1411a9)</span></li>
<li>outputview/outputexecutejob.cpp <span style="color: grey">(56167e6267d5d60caf5378bc1ea994a8a731e789)</span></li>
<li>outputview/outputmodel.h <span style="color: grey">(55920beab6ee16643ef449d816d210ba343046e6)</span></li>
<li>outputview/outputmodel.cpp <span style="color: grey">(c482222c2448fe75d97911d10aaa7b89fa15bfbf)</span></li>
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<p><a href="http://git.reviewboard.kde.org/r/108914/diff/" style="margin-left: 3em;">View Diff</a></p>
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