Andy Wingo | Igalia - Open Source Consultancy and Development

Andy Wingo

Andy Wingo

Hacker.

North Carolina (USA)

I enjoy practicing aikido in my free time – and hacking, of course!

POSTS

Jan 13, 2025

an annoying failure mode of copying nurseries

I just found a funny failure mode in the Whippet garbage collector and thought readers might be amused.Say you have a semi-space nursery and a semi-space old generation. Both are...

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Jan 9, 2025

ephemerons vs generations in whippet

Happy new year, hackfolk! Today, a note about ephemerons. I thought I was done with them, but it seems they are not done with me. The question at hand is,...

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Oct 3, 2024

preliminary notes on a nofl field-logging barrier

When you have a generational collector, you aim to trace only the part of the object graph that has been allocated recently. To do so, you need to keep a...

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Sep 26, 2024

needed-bits optimizations in guile

Hey all, I had a fun bug this week and want to share it with you.numbers and representationsFirst, though, some background. Guile’s numeric operations are defined over the complex numbers,...

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Commits

[Chromium V8] [isolate-groups] Free code range before reservation is freed In pointer-compression configuratio...

[Chromium V8] [isolate-groups] Attach CodeRange to IsolateGroup, not process For multi-cage configurations, we...

[Chromium V8] [isolate-groups] Simplify non-pointer-compression configuration. NFC Without pointer compression...

[Chromium V8] [isolate-groups] Without pointer compression, just one isolate group There is no sensible meanin...