V8 Release v8.0 (opens in new tab)

(v8.dev)

78 pointscoldlestat6y ago12 comments

12 comments

| Pointer compression saves an average of 40% of memory.

This is really awesome. Can't wait it to be shipped everywhere.

ksec6y ago

I wonder if this is specific to v8 or could SpiderMonkey and JavascriptCore could benefits from the same optimisation technique.

MaxBarraclough6y ago

I believe JVMs were the first to use pointer-compression.

A good summary is at https://stackoverflow.com/a/25120926/

Also worth reading: https://blog.codecentric.de/en/2014/02/35gb-heap-less-32gb-j...

coldtea6y ago

It's used in other languages too, but how easy it is to apply to another JS engine depends on its implementation.

Nothing v8 exclusive about it though

haecceity6y ago

I'm impressed by the amount effort that went into that header svg.

est316y ago

It's pretty cool how it's done via vector graphics AND CSS effects. Also note how it only takes 8kb! However, it doesn't render well in Firefox: it's moved to the right by a lot.

sidpatil6y ago

> However, it doesn't render well in Firefox: it's moved to the right by a lot.

Which version of Firefox are you using? I'm on 71.0 and it looks okay to me. (It's consistent with the IE11 that I have access to.)

1 more reply

keyle6y ago

I'm so excited for optional chaining in JS. It's?.going?.to?.be?.so?.much?.better #nosarcasm

creative-coder6y ago

Dear pattern lovers, you're witnessing a once-in-a-lifetime event — V8 v8

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