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Tweak some docs.

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Bob Nystrom
2016-01-21 21:38:27 -08:00
parent 39b29ee07a
commit 056ae61493
4 changed files with 56 additions and 49 deletions
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doc/site/performance.markdown
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@@ -6,76 +6,76 @@ seem to like them, so here's a few:
<h3>Method Call</h3>
<table class="chart">
<tr>
<th>wren</th><td><div class="chart-bar wren" style="width: 11%;">0.15s&nbsp;</div></td>
<th>wren</th><td><div class="chart-bar wren" style="width: 14%;">0.12s&nbsp;</div></td>
</tr>
<tr>
<th>luajit (-joff)</th><td><div class="chart-bar" style="width: 17%;">0.23s&nbsp;</div></td>
<th>luajit (-joff)</th><td><div class="chart-bar" style="width: 18%;">0.16s&nbsp;</div></td>
</tr>
<tr>
<th>ruby</th><td><div class="chart-bar" style="width: 26%;">0.36s&nbsp;</div></td>
<th>ruby</th><td><div class="chart-bar" style="width: 23%;">0.20s&nbsp;</div></td>
</tr>
<tr>
<th>lua</th><td><div class="chart-bar" style="width: 43%;">0.58s&nbsp;</div></td>
<th>lua</th><td><div class="chart-bar" style="width: 41%;">0.35s&nbsp;</div></td>
</tr>
<tr>
<th>python3</th><td><div class="chart-bar" style="width: 88%;">1.18s&nbsp;</div></td>
<th>python3</th><td><div class="chart-bar" style="width: 91%;">0.78s&nbsp;</div></td>
</tr>
<tr>
<th>python</th><td><div class="chart-bar" style="width: 100%;">1.33s&nbsp;</div></td>
<th>python</th><td><div class="chart-bar" style="width: 100%;">0.85s&nbsp;</div></td>
</tr>
</table>
<h3>DeltaBlue</h3>
<table class="chart">
<tr>
<th>wren</th><td><div class="chart-bar wren" style="width: 27%;">0.13s&nbsp;</div></td>
<th>wren</th><td><div class="chart-bar wren" style="width: 22%;">0.13s&nbsp;</div></td>
</tr>
<tr>
<th>python3</th><td><div class="chart-bar" style="width: 94%;">0.44s&nbsp;</div></td>
<th>python3</th><td><div class="chart-bar" style="width: 83%;">0.48s&nbsp;</div></td>
</tr>
<tr>
<th>python</th><td><div class="chart-bar" style="width: 100%;">0.47s&nbsp;</div></td>
<th>python</th><td><div class="chart-bar" style="width: 100%;">0.57s&nbsp;</div></td>
</tr>
</table>
<h3>Binary Trees</h3>
<table class="chart">
<tr>
<th>luajit (-joff)</th><td><div class="chart-bar" style="width: 20%;">0.16s&nbsp;</div></td>
<th>luajit (-joff)</th><td><div class="chart-bar" style="width: 20%;">0.11s&nbsp;</div></td>
</tr>
<tr>
<th>wren</th><td><div class="chart-bar wren" style="width: 39%;">0.29s&nbsp;</div></td>
<th>wren</th><td><div class="chart-bar wren" style="width: 41%;">0.22s&nbsp;</div></td>
</tr>
<tr>
<th>ruby</th><td><div class="chart-bar" style="width: 49%;">0.37s&nbsp;</div></td>
<th>ruby</th><td><div class="chart-bar" style="width: 46%;">0.24s&nbsp;</div></td>
</tr>
<tr>
<th>python3</th><td><div class="chart-bar" style="width: 68%;">0.52s&nbsp;</div></td>
<th>python</th><td><div class="chart-bar" style="width: 71%;">0.37s&nbsp;</div></td>
</tr>
<tr>
<th>lua</th><td><div class="chart-bar" style="width: 97%;">0.73s&nbsp;</div></td>
<th>python3</th><td><div class="chart-bar" style="width: 73%;">0.38s&nbsp;</div></td>
</tr>
<tr>
<th>python</th><td><div class="chart-bar" style="width: 100%;">0.75s&nbsp;</div></td>
<th>lua</th><td><div class="chart-bar" style="width: 100%;">0.52s&nbsp;</div></td>
</tr>
</table>
<h3>Recursive Fibonacci</h3>
<table class="chart">
<tr>
<th>luajit (-joff)</th><td><div class="chart-bar" style="width: 17%;">0.15s&nbsp;</div></td>
<th>luajit (-joff)</th><td><div class="chart-bar" style="width: 17%;">0.10s&nbsp;</div></td>
</tr>
<tr>
<th>wren</th><td><div class="chart-bar wren" style="width: 38%;">0.31s&nbsp;</div></td>
<th>wren</th><td><div class="chart-bar wren" style="width: 35%;">0.20s&nbsp;</div></td>
</tr>
<tr>
<th>ruby</th><td><div class="chart-bar" style="width: 40%;">0.33s&nbsp;</div></td>
<th>ruby</th><td><div class="chart-bar" style="width: 39%;">0.22s&nbsp;</div></td>
</tr>
<tr>
<th>lua</th><td><div class="chart-bar" style="width: 43%;">0.35s&nbsp;</div></td>
<th>lua</th><td><div class="chart-bar" style="width: 49%;">0.28s&nbsp;</div></td>
</tr>
<tr>
<th>python3</th><td><div class="chart-bar" style="width: 96%;">0.78s&nbsp;</div></td>
<th>python</th><td><div class="chart-bar" style="width: 90%;">0.51s&nbsp;</div></td>
</tr>
<tr>
<th>python</th><td><div class="chart-bar" style="width: 100%;">0.81s&nbsp;</div></td>
<th>python3</th><td><div class="chart-bar" style="width: 100%;">0.57s&nbsp;</div></td>
</tr>
</table>
@@ -184,6 +184,19 @@ means that we can copy down all inherited methods in the subclass when it's
created since we know those will never change. Method dispatch then just
requires locating the method in the class of the receiver.
### Method signatures
Wren supports overloading by arity using its concept of [signatures]. This makes
the language more expressive, but also faster. When a method is called, we look
it up on the receiver's class. If we succeed in finding it, we also know it has
the right number of parameters.
This lets Wren avoid the extra checking most languages need to do at runtime to
handle too few or too many arguments being passed to a method. In Wren, it's not
*syntactically* possible to call a method with the wrong number of arguments.
[signatures]: method-calls.html#signature
### Computed gotos
On compilers that support it, Wren's core bytecode interpreter loop uses