Hooking a deterministic classifier into V8's JIT
Cover is generated by this site (not the creator's media).
WHAT IT DOES
The idea: let the JIT ask a classifier whether a function is worth promoting to the next optimisation tier.
The experiment failed, and the author says so plainly. It is here because the negative result is the useful part — a model inside a hot path has to be fast and cheap enough to justify itself, and this attempt was neither.
Reported by the creator on X.
Summary written by this site
FROM THE ORIGINAL POST
with "deterministic" models like Jev showing up, I spent the last few days trying to integrate a classifier like it into V8 to see if it could help the JIT decide when to promote code to the next optimization tier yeah, it was as dumb as it sounds — Kapeka · Original post
JEV ROLE
Decision
Choice
#experiment#javascript#code
WHERE IT SITS
HOW IT WORKS
INPUTJIT state for a function
JEVDecision
OUTPUTpromote or do not promote
WHAT THE POST SHOWED
No observable metrics recorded. Metrics are only published when they can be tied to a source link.
SOURCE
↗ Original postSource checked
Evidence is a status, not a ranking. It says how the claim can be checked — not whether the case is good.
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