Stream: git-wasmtime

Topic: wasmtime / PR #13887 Split current_thread into an inline ...

view this post on Zulip Wasmtime GitHub notifications bot (Jul 16 2026 at 11:51):

tschneidereit opened PR #13887 from tschneidereit:current-thread-fast-path to bytecodealliance:main:

Splitting current_thread into an #[inline] fast path plus #[cold] outlined deferred-promotion slow path reduces call overhead by about 20% (measured in a Linux VM on an M5 Max MBP): sync calls go from about 83ns to about 65ns, immediately ready async calls from 142ns to 117ns.

view this post on Zulip Wasmtime GitHub notifications bot (Jul 16 2026 at 11:51):

tschneidereit added the label wasmtime on PR #13887.

view this post on Zulip Wasmtime GitHub notifications bot (Jul 16 2026 at 11:51):

tschneidereit requested pchickey for a review on PR #13887.

view this post on Zulip Wasmtime GitHub notifications bot (Jul 16 2026 at 11:51):

tschneidereit added the label performance on PR #13887.

view this post on Zulip Wasmtime GitHub notifications bot (Jul 16 2026 at 11:51):

tschneidereit requested wasmtime-core-reviewers for a review on PR #13887.

view this post on Zulip Wasmtime GitHub notifications bot (Jul 16 2026 at 11:52):

tschneidereit updated PR #13887.

view this post on Zulip Wasmtime GitHub notifications bot (Jul 16 2026 at 13:07):

github-actions[bot] added the label wasmtime:api on PR #13887.

view this post on Zulip Wasmtime GitHub notifications bot (Jul 16 2026 at 15:22):

:thumbs_up: alexcrichton submitted PR review.

view this post on Zulip Wasmtime GitHub notifications bot (Jul 16 2026 at 15:22):

alexcrichton added PR #13887 Split current_thread into an inline fast path and a cold slow path to the merge queue.

view this post on Zulip Wasmtime GitHub notifications bot (Jul 16 2026 at 15:47):

github-merge-queue[bot] removed PR #13887 Split current_thread into an inline fast path and a cold slow path from the merge queue.

view this post on Zulip Wasmtime GitHub notifications bot (Jul 16 2026 at 15:54):

alexcrichton added PR #13887 Split current_thread into an inline fast path and a cold slow path to the merge queue.

view this post on Zulip Wasmtime GitHub notifications bot (Jul 16 2026 at 16:19):

github-merge-queue[bot] removed PR #13887 Split current_thread into an inline fast path and a cold slow path from the merge queue.

view this post on Zulip Wasmtime GitHub notifications bot (Jul 16 2026 at 19:19):

alexcrichton added PR #13887 Split current_thread into an inline fast path and a cold slow path to the merge queue.

view this post on Zulip Wasmtime GitHub notifications bot (Jul 16 2026 at 19:44):

github-merge-queue[bot] removed PR #13887 Split current_thread into an inline fast path and a cold slow path from the merge queue.

view this post on Zulip Wasmtime GitHub notifications bot (Jul 16 2026 at 20:06):

alexcrichton added PR #13887 Split current_thread into an inline fast path and a cold slow path to the merge queue.

view this post on Zulip Wasmtime GitHub notifications bot (Jul 16 2026 at 20:29):

:check: alexcrichton merged PR #13887.

view this post on Zulip Wasmtime GitHub notifications bot (Jul 16 2026 at 20:29):

alexcrichton removed PR #13887 Split current_thread into an inline fast path and a cold slow path from the merge queue.

Last updated: Jul 29 2026 at 05:03 UTC