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This is an automatically generated e-mail. To reply, visit:
<a href="http://git.reviewboard.kde.org/r/108946/">http://git.reviewboard.kde.org/r/108946/</a>
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<h1 style="margin-right: 0.2em; padding: 0; font-size: 10pt;">This change has been marked as submitted.</h1>
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<div>Review request for kdelibs.</div>
<div>By Bernd Buschinski.</div>
<p style="color: grey;"><i>Updated March 30, 2013, 3:14 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;">kjs: Extend PropertySlot like JSC does, introduce new GetValueNumberFunc to
avoid doing unneeded Identifier::from(unsigned) if we already know its an unsigned.
Before we used to do something like:
store unsigned -> Identifier::from(unsigned) -> call -> Identifier.toArrayIndex to get the unsigned again -> use unsigned
now:
store unsigned -> call -> use unsigned.
The pure Identifier/"String" case is unchanged.
Also (like JSC too) add function to directly store the Value, this avoids extra function call.
Now we no longer need to create a static GetValueFunc for getting a tiny value. (less code, more fun)
This overall improves the performance for kjs:
with SunSpider 1.0-svn, (less is better, 3*10 runs)
before: 2887.5ms, 2836.9ms, 2865.4ms
after: 2748.5ms, 2756.4ms, 2747.3ms
octane benchmark (more is better)
before score: 225
after score: 272
and most important not a single testcase got slower.
For typed-arrays, my extra bloated worstcase bubble sort testcase (less is better)
before: ~44sec
after: ~18sec
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<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Diffs</b> </h1>
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<li>khtml/ecma/kjs_arraybufferview.h <span style="color: grey">(PRE-CREATION)</span></li>
<li>khtml/ecma/kjs_binding.h <span style="color: grey">(b967744)</span></li>
<li>kjs/property_slot.h <span style="color: grey">(d59d0a6)</span></li>
<li>kjs/string_object.h <span style="color: grey">(3158d2f)</span></li>
<li>kjs/string_object.cpp <span style="color: grey">(0d10e53)</span></li>
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<p><a href="http://git.reviewboard.kde.org/r/108946/diff/" style="margin-left: 3em;">View Diff</a></p>
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