Test out building the C API artifacts with LTO #11475
Closed
Conversation
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Trying to shrink the size of compiled artifacts... prtest:full
alexcrichton
added a commit
to alexcrichton/wasmtime
that referenced
this pull request
Aug 20, 2025
This is needed to currently shrink our `*.a` artifacts under 100M in size which is required downstream in the wasmtime-go embedding. Some testing in bytecodealliance#11475 of using full LTO or only building Linux/macOS with 1 CGU shows that this'll likely increase cycle time by ~1 minute. Windows builders are already the slowest release build builders and this is adding 1 minute using 1 CGU vs 2-3 extra minutes for full LTO. Linux/macOS are switched to using full LTO which the CI builders currently have plenty of time for. This shaves 50M off the C API artifacts for Linux which buys a good amount of headroom for future changes. Closes bytecodealliance#11476
Member
Author
|
Closing in favor of #11483 |
github-merge-queue bot
pushed a commit
that referenced
this pull request
Aug 21, 2025
This is needed to currently shrink our `*.a` artifacts under 100M in size which is required downstream in the wasmtime-go embedding. Some testing in #11475 of using full LTO or only building Linux/macOS with 1 CGU shows that this'll likely increase cycle time by ~1 minute. Windows builders are already the slowest release build builders and this is adding 1 minute using 1 CGU vs 2-3 extra minutes for full LTO. Linux/macOS are switched to using full LTO which the CI builders currently have plenty of time for. This shaves 50M off the C API artifacts for Linux which buys a good amount of headroom for future changes. Closes #11476
alexcrichton
added a commit
to alexcrichton/wasmtime
that referenced
this pull request
Aug 21, 2025
This is needed to currently shrink our `*.a` artifacts under 100M in size which is required downstream in the wasmtime-go embedding. Some testing in bytecodealliance#11475 of using full LTO or only building Linux/macOS with 1 CGU shows that this'll likely increase cycle time by ~1 minute. Windows builders are already the slowest release build builders and this is adding 1 minute using 1 CGU vs 2-3 extra minutes for full LTO. Linux/macOS are switched to using full LTO which the CI builders currently have plenty of time for. This shaves 50M off the C API artifacts for Linux which buys a good amount of headroom for future changes. Closes bytecodealliance#11476
alexcrichton
added a commit
to alexcrichton/wasmtime
that referenced
this pull request
Aug 21, 2025
This is needed to currently shrink our `*.a` artifacts under 100M in size which is required downstream in the wasmtime-go embedding. Some testing in bytecodealliance#11475 of using full LTO or only building Linux/macOS with 1 CGU shows that this'll likely increase cycle time by ~1 minute. Windows builders are already the slowest release build builders and this is adding 1 minute using 1 CGU vs 2-3 extra minutes for full LTO. Linux/macOS are switched to using full LTO which the CI builders currently have plenty of time for. This shaves 50M off the C API artifacts for Linux which buys a good amount of headroom for future changes. Closes bytecodealliance#11476
alexcrichton
added a commit
that referenced
this pull request
Aug 21, 2025
This is needed to currently shrink our `*.a` artifacts under 100M in size which is required downstream in the wasmtime-go embedding. Some testing in #11475 of using full LTO or only building Linux/macOS with 1 CGU shows that this'll likely increase cycle time by ~1 minute. Windows builders are already the slowest release build builders and this is adding 1 minute using 1 CGU vs 2-3 extra minutes for full LTO. Linux/macOS are switched to using full LTO which the CI builders currently have plenty of time for. This shaves 50M off the C API artifacts for Linux which buys a good amount of headroom for future changes. Closes #11476
bongjunj
pushed a commit
to prosyslab/wasmtime
that referenced
this pull request
Oct 20, 2025
This is needed to currently shrink our `*.a` artifacts under 100M in size which is required downstream in the wasmtime-go embedding. Some testing in bytecodealliance#11475 of using full LTO or only building Linux/macOS with 1 CGU shows that this'll likely increase cycle time by ~1 minute. Windows builders are already the slowest release build builders and this is adding 1 minute using 1 CGU vs 2-3 extra minutes for full LTO. Linux/macOS are switched to using full LTO which the CI builders currently have plenty of time for. This shaves 50M off the C API artifacts for Linux which buys a good amount of headroom for future changes. Closes bytecodealliance#11476
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
1 participant
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
Trying to shrink the size of compiled artifacts...
cc bytecodealliance/wasmtime-go#250