Stream: git-wasmtime

Topic: wasmtime / PR #14341 Add a public method to grow the per-...

Wasmtime GitHub notifications bot (Sep 15 2026 at 18:06):

alexcrichton opened PR #14341 from alexcrichton:manually-grow-gc-heap to bytecodealliance:main:

This commit adds a new Store::gc_heap_grow method (and an async variant, and twins on StoreContextMut) which can be used by embedders to manually grow the GC heap. This is intended as a performance tuning optimization orthogonal from -Ogc-heap-initial-size=N which is a tunable that compilation can take advantage of. This isn't bound in the CLI at this time but could be hooked up there as well given the right name. Otherwise though this is intended to give embedders a performance knob to tune as desired which doesn't affect *.cwasm compilation like -Ogc-heap-initial-size=N does.

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Wasmtime GitHub notifications bot (Sep 15 2026 at 18:06):

alexcrichton requested dicej for a review on PR #14341.

Wasmtime GitHub notifications bot (Sep 15 2026 at 18:06):

alexcrichton requested wasmtime-core-reviewers for a review on PR #14341.

Wasmtime GitHub notifications bot (Sep 15 2026 at 19:42):

:thumbs_up: dicej submitted PR review.

Wasmtime GitHub notifications bot (Sep 15 2026 at 19:44):

alexcrichton added PR #14341 Add a public method to grow the per-store GC heap to the merge queue.

Wasmtime GitHub notifications bot (Sep 15 2026 at 20:10):

github-merge-queue[bot] removed PR #14341 Add a public method to grow the per-store GC heap from the merge queue.

Wasmtime GitHub notifications bot (Sep 15 2026 at 20:44):

github-actions[bot] added the label wasmtime:api on PR #14341.

Wasmtime GitHub notifications bot (Sep 15 2026 at 22:02):

alexcrichton updated PR #14341.

Wasmtime GitHub notifications bot (Sep 15 2026 at 22:02):

alexcrichton has enabled auto merge for PR #14341.

Wasmtime GitHub notifications bot (Sep 15 2026 at 22:11):

alexcrichton added PR #14341 Add a public method to grow the per-store GC heap to the merge queue.

Wasmtime GitHub notifications bot (Sep 15 2026 at 22:37):

github-merge-queue[bot] removed PR #14341 Add a public method to grow the per-store GC heap from the merge queue.

Wasmtime GitHub notifications bot (Sep 15 2026 at 22:53):

alexcrichton added PR #14341 Add a public method to grow the per-store GC heap to the merge queue.

Wasmtime GitHub notifications bot (Sep 15 2026 at 23:19):

:check: alexcrichton merged PR #14341.

Wasmtime GitHub notifications bot (Sep 15 2026 at 23:19):

alexcrichton removed PR #14341 Add a public method to grow the per-store GC heap from the merge queue.

Last updated: Sep 20 2026 at 18:08 UTC