V8 Maglev: compiler design doc

#1

Post by obl » Sun, Jun 04, 2023, 10:14 AM UTC

V8 Maglev: compiler design doc
docs.google.com

Re: V8 Maglev: compiler design doc

#2

Post by taosx » Sun, Jun 04, 2023, 11:01 AM UTC

Thank you to everyone involved in this. I'm wondering, is Node.js fiddling with v8 in order to focus more on the resulting code performance than the initial startup.

Planning to learn C/C++ in order to investigate that and if there any gains there.

Re: V8 Maglev: compiler design doc

#3

Post by fulafel » Sun, Jun 04, 2023, 11:42 AM UTC

Here's a recent post about shipping and results: https://blog.chromium.org/2023/06/how-chrome-achieved-high-s...

Would be interesting to hear where they ended up with the parallelism that was mentioned in passing.

Re: V8 Maglev: compiler design doc

#4

Post by tambourine_man » Sun, Jun 04, 2023, 11:57 AM UTC

This seems similar to Safari’s JSCore 4 tiers architecture.

Imagine keeping execution smooth while switching between all those tiers. Modern JS engines are fascinating beasts.

Re: V8 Maglev: compiler design doc

#5

Post by pawelmurias » Sun, Jun 04, 2023, 12:50 PM UTC

taosx wrote: post #2

Thank you to everyone involved in this. I'm wondering, is Node.js fiddling with v8 in order to focus more on the resulting code performance than the initial startup. Planning to learn C/C++ in order to investigate that and if there any gains there.

I would guess node.js apps can load a ton of code so the startup can be important too.

Re: V8 Maglev: compiler design doc

#6

Post by mkoubaa » Sun, Jun 04, 2023, 12:59 PM UTC

Boy am I glad that huge internet companies are willing to fund these sorts of large engineering projects in the open

Re: V8 Maglev: compiler design doc

#7

Post by _Microft » Sun, Jun 04, 2023, 1:46 PM UTC

mkoubaa wrote: post #6

Boy am I glad that huge internet companies are willing to fund these sorts of large engineering projects in the open

We wanted flying trains and all we got was a js compiler.

Re: V8 Maglev: compiler design doc

#8

Post by mhh__ » Sun, Jun 04, 2023, 1:57 PM UTC

_Microft wrote: post #7

mkoubaa wrote: post #6

Boy am I glad that huge internet companies are willing to fund these sorts of large engineering projects in the open

We wanted flying trains and all we got was a js compiler.

We already have flying trains

Re: V8 Maglev: compiler design doc

#9

Post by mkoubaa » Sun, Jun 04, 2023, 1:59 PM UTC

_Microft wrote: post #7

mkoubaa wrote: post #6

Boy am I glad that huge internet companies are willing to fund these sorts of large engineering projects in the open

We wanted flying trains and all we got was a js compiler.

We wanted flying trains?

Re: V8 Maglev: compiler design doc

#10

Post by rurban » Sun, Jun 04, 2023, 2:01 PM UTC

mkoubaa wrote: post #6

Boy am I glad that huge internet companies are willing to fund these sorts of large engineering projects in the open

Large? This is the simple, fast midtier compiler. Without much optimizations.

Looks similar to the PHP compiler.