Cost of Polymorphism (v9)

Revision 9 of this benchmark created on

Description

https://bugs.chromium.org/p/chromium/issues/detail?id=1413961

Setup

const tags = ["a",
"abbr",
"acronym",
"address",
"applet",
"area",
"article",
"aside",
"audio",
"b",
"base",
"basefont",
"bdi",
"bdo",
"bgsound",
"big",
"blink",
"blockquote",
"body",
"br",
"button",
"canvas",
"caption",
"center",
"cite",
"code",
"col",
"colgroup",
"content",
"data",
"datalist",
"dd",
"decorator",
"del",
"details",
"dfn",
"dir",
"div",
"dl",
"dt",
"element",
"em",
"embed",
"fieldset",
"figcaption",
"figure",
"font",
"footer",
"form",
"frame",
"frameset",
"h1",
"h2",
"h3",
"h4",
"h5",
"h6",
"head",
"header",
"hgroup",
"hr",
"html",
"i",
"iframe",
"img",
"input",
"ins",
"isindex",
"kbd",
"keygen",
"label",
"legend",
"li",
"link",
"listing",
"main",
"map",
"mark",
"marquee",
"menu",
"menuitem",
"meta",
"meter",
"nav",
"nobr",
"noframes",
"noscript",
"object",
"ol",
"optgroup",
"option",
"output",
"p",
"param",
"plaintext",
"pre",
"progress",
"q",
"rp",
"rt",
"ruby",
"s",
"samp",
"script",
"section",
"select",
"shadow",
"small",
"source",
"spacer",
"span",
"strike",
"strong",
"style",
"sub",
"summary",
"sup",
"table",
"tbody",
"td",
"template",
"textarea",
"tfoot",
"th",
"thead",
"time",
"title",
"tr",
"track",
"tt",
"u",
"ul",
"var",
"video",
"wbr",
"xmp"];
const elementCount = tags.length;
for(let i=0; i<elementCount) {
  // prime the creation of elements before the test
 document.createElement(tags[i]);
}
const divIndex = tags.indexOf('div');
const setAttribute = HTMLElement.prototype.setAttribute;

Test runner

Ready to run.

Testing in
TestOps/sec
Create All elements as DIVs and set ID
for(let i=0; i<elementCount; i++) {
  document.
     createElement(tags[divIndex]).
     setAttribute('id', 'value');
}
ready
Create all elements as different types and set ID
for(let i=0; i<elementCount; i++) {
  document.
     createElement(tags[i]).
     setAttribute('id', 'value');
}
ready
Create all elements as different types and set ID through monomorphic call
for(let i=0; i<elementCount; i++) {
  setAttribute.call(
    document.
      createElement(tags[i]), 
    'id', 
    'value'
  );
}
ready

Revisions

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