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A comment on Space Jam's 1996 website is still alive. Parent comment

Re:Space Jam's 1996 website is still alive by mattmanser on Thursday July 02, 2020 @08:37PM (#23719747)
That seems an optimistic reading of those graphs. As far as I can tell. a lot of them are 20-30% the speed of native, not 40-60%.
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Re:Space Jam's 1996 website is still alive by gridlockd on Friday July 03, 2020 @04:47AM (#23722237)
For the Firefox graph, none of them are below 35%, only three are below 40%. The average is well above 60%.

That said, there's a lot going on there. Javascript can not use SIMD or multiple threads. Some tests are heavier on C#, which is converted to C++ in the Javascript version and thus becomes "faster than native C#".

The point is not give an exact number on how fast Javascript is compared to any other language, there's wide variance across usage and implementations. The point is to show that Javascript to rival C# performance is feasible.

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