[Webkit-unassigned] [Bug 257622] Add a way to run incremental GC sweeps during runloop idle time in between rendering updates

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=257622

Jarred Sumner <jarred at jarredsumner.com> changed:

           What    |Removed                     |Added
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                 CC|                            |jarred at jarredsumner.com

--- Comment #1 from Jarred Sumner <jarred at jarredsumner.com> ---
We had a similar issue in Bun and ended up doing this: https://github.com/oven-sh/bun/blob/4378ef8e97839f950ddfa180e466d0a8db187681/src/bun.js/event_loop.zig#L320

Just before the event loop idles, we check if the heap size changed since the previous check and if so, we schedule the garbage collector asynchronously. Then every so often we run a synchronous GC

It fixed issues where Bun’s memory usage permanently would go up. But we still have issues with synchronous work. It doesn’t go down much if you do lots of blocking synchronous work

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