<table><tr><td style="">jtamate added a comment.
</td><a style="text-decoration: none; padding: 4px 8px; margin: 0 8px 8px; float: right; color: #464C5C; font-weight: bold; border-radius: 3px; background-color: #F7F7F9; background-image: linear-gradient(to bottom,#fff,#f1f0f1); display: inline-block; border: 1px solid rgba(71,87,120,.2);" href="https://phabricator.kde.org/D12511">View Revision</a></tr></table><br /><div><div><blockquote style="border-left: 3px solid #8C98B8;
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<div style="font-style: normal;
padding-bottom: 4px;">In <a href="https://phabricator.kde.org/D12511#258193" style="background-color: #e7e7e7;
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color: rgb(107, 116, 140);"><p>Actually, no. Ignore what I said. The pictures you are showing are pretty meaningless. Did you run perf with <tt style="background: #ebebeb; font-size: 13px;">--call-graph dwarf</tt>? Better look at the flamegraph and search for the function you are interested in (Kate::TextBuffer::notifyAboutRangeChange) or use the Caller/Callee view to get an aggregated view of your change.</p></div>
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<p>That's not the impression I got running kwrite in live and under a slow machine (valgrind), before I had to wait for the paste to finish, and after the patch not. But kwrite is still slow undoing the paste.</p>
<p>I did run perf record -g, the same test with the patch applied after pasting the text 25 times and undoing with this result: <a href="https://phabricator.kde.org/F5833430" style="background-color: #e7e7e7;
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color: black;text-decoration: none;">F5833430: kwrite_perf_after_25.png</a>.<br />
The same test (pasting 25 times and undoing) with --call-graph dwarf with this result: <a href="https://phabricator.kde.org/F5833432" style="background-color: #e7e7e7;
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color: black;text-decoration: none;">F5833432: kwrite_perf_after_25_dwarf.png</a>, and <a href="https://phabricator.kde.org/F5833445" style="background-color: #e7e7e7;
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color: black;text-decoration: none;">F5833445: kwrite_perf_after_25_dwarf_caller.png</a>.</p></div></div><br /><div><strong>REPOSITORY</strong><div><div>R241 KIO</div></div></div><br /><div><strong>REVISION DETAIL</strong><div><a href="https://phabricator.kde.org/D12511">https://phabricator.kde.org/D12511</a></div></div><br /><div><strong>To: </strong>jtamate, Kate, cullmann, mwolff<br /><strong>Cc: </strong>mwolff, cullmann, Frameworks, michaelh, kevinapavew, ngraham, bruns, demsking, sars, dhaumann<br /></div>