评论者：mfikes
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加速摘要
Engine small, medium, with sub-object
V8: 1.42, 1.31, 1.19
SpiderMonkey: 1.14, 1.48, 1.41
JavaScriptCore: 1.48, 1.58, 1.62
Nashorn: 1.27, 1.36, 1.20
ChakraCore: 1.49, 1.77, 1.77
之前
使用V8进行基准测试
[obj (js-obj "a" 1 "b" 2)], (pr-str obj), 1000次运行，74毫秒
[obj (js-obj "a" 1 "b" 2 "c" 3 "d" 4 "e" 5 "f" 6)], (pr-str obj), 1000次运行，84毫秒
[sub-obj (js-obj "g" 7 "h" 8 "i" 9 "j" 10) obj (js-obj "a" 1 "b" 2 "c" 3 "d" 4 "e" 5 "f" 6 "s" sub-obj)], (pr-str obj), 1000次运行，75毫秒
使用SpiderMonkey进行基准测试
[obj (js-obj "a" 1 "b" 2)], (pr-str obj), 1000次运行，95毫秒
[obj (js-obj "a" 1 "b" 2 "c" 3 "d" 4 "e" 5 "f" 6)], (pr-str obj), 1000次运行，92毫秒
[sub-obj (js-obj "g" 7 "h" 8 "i" 9 "j" 10) obj (js-obj "a" 1 "b" 2 "c" 3 "d" 4 "e" 5 "f" 6 "s" sub-obj)], (pr-str obj), 1000次运行，134毫秒
使用JavaScriptCore进行基准测试
[obj (js-obj "a" 1 "b" 2)], (pr-str obj), 1000次运行，46毫秒
[obj (js-obj "a" 1 "b" 2 "c" 3 "d" 4 "e" 5 "f" 6)], (pr-str obj), 1000次运行，41毫秒
[sub-obj (js-obj "g" 7 "h" 8 "i" 9 "j" 10) obj (js-obj "a" 1 "b" 2 "c" 3 "d" 4 "e" 5 "f" 6 "s" sub-obj)], (pr-str obj), 1000次运行，55毫秒
使用Nashorn进行基准测试
[obj (js-obj "a" 1 "b" 2)], (pr-str obj), 1000次运行，1228毫秒
[obj (js-obj "a" 1 "b" 2 "c" 3 "d" 4 "e" 5 "f" 6)], (pr-str obj), 1000次运行，1048毫秒
[sub-obj (js-obj "g" 7 "h" 8 "i" 9 "j" 10) obj (js-obj "a" 1 "b" 2 "c" 3 "d" 4 "e" 5 "f" 6 "s" sub-obj)], (pr-str obj), 1000次运行，620毫秒
使用ChakraCore进行基准测试
[obj (js-obj "a" 1 "b" 2)], (pr-str obj), 1000次运行，55毫秒
对象 [obj (js-obj "a" 1 "b" 2 "c" 3 "d" 4 "e" 5 "f" 6)], 打印字符串，1000 次运行，76 毫秒
子对象 [sub-obj (js-obj "g" 7 "h" 8 "i" 9 "j" 10) obj (js-obj "a" 1 "b" 2 "c" 3 "d" 4 "e" 5 "f" 6 "s" sub-obj)], 打印字符串，1000 次运行，129 毫秒
之后
使用V8进行基准测试
[obj (js-obj "a" 1 "b" 2)], 打印字符串，1000 次运行，52 毫秒
[obj (js-obj "a" 1 "b" 2 "c" 3 "d" 4 "e" 5 "f" 6)], 打印字符串，1000 次运行，64 毫秒
[sub-obj (js-obj "g" 7 "h" 8 "i" 9 "j" 10) obj (js-obj "a" 1 "b" 2 "c" 3 "d" 4 "e" 5 "f" 6 "s" sub-obj)], 打印字符串，1000 次运行，63 毫秒
使用SpiderMonkey进行基准测试
[obj (js-obj "a" 1 "b" 2)], 打印字符串，1000 次运行，83 毫秒
[obj (js-obj "a" 1 "b" 2 "c" 3 "d" 4 "e" 5 "f" 6)], 打印字符串，1000 次运行，62 毫秒
[sub-obj (js-obj "g" 7 "h" 8 "i" 9 "j" 10) obj (js-obj "a" 1 "b" 2 "c" 3 "d" 4 "e" 5 "f" 6 "s" sub-obj)], 打印字符串，1000 次运行，95 毫秒
使用JavaScriptCore进行基准测试
[obj (js-obj "a" 1 "b" 2)], 打印字符串，1000 次运行，31 毫秒
[obj (js-obj "a" 1 "b" 2 "c" 3 "d" 4 "e" 5 "f" 6)], 打印字符串，1000 次运行，26 毫秒
[sub-obj (js-obj "g" 7 "h" 8 "i" 9 "j" 10) obj (js-obj "a" 1 "b" 2 "c" 3 "d" 4 "e" 5 "f" 6 "s" sub-obj)], 打印字符串，1000 次运行，34 毫秒
使用Nashorn进行基准测试
[obj (js-obj "a" 1 "b" 2)], 打印字符串，1000 次运行，970 毫秒
[obj (js-obj "a" 1 "b" 2 "c" 3 "d" 4 "e" 5 "f" 6)], 打印字符串，1000 次运行，769 毫秒
[sub-obj (js-obj "g" 7 "h" 8 "i" 9 "j" 10) obj (js-obj "a" 1 "b" 2 "c" 3 "d" 4 "e" 5 "f" 6 "s" sub-obj)], 打印字符串，1000 次运行，518 毫秒
使用ChakraCore进行基准测试
[obj (js-obj "a" 1 "b" 2)], 打印字符串，1000 次运行，37 毫秒
[obj (js-obj "a" 1 "b" 2 "c" 3 "d" 4 "e" 5 "f" 6)], 打印字符串，1000 次运行，43 毫秒
[sub-obj (js-obj "g" 7 "h" 8 "i" 9 "j" 10) obj (js-obj "a" 1 "b" 2 "c" 3 "d" 4 "e" 5 "f" 6 "s" sub-obj)], 打印字符串，1000 次运行，73 毫秒
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