[release-v2.1] main: Use backported wire updates.#3582
Merged
davecgh merged 2 commits intodecred:release-v2.1from Dec 8, 2025
Merged
[release-v2.1] main: Use backported wire updates.#3582davecgh merged 2 commits intodecred:release-v2.1from
davecgh merged 2 commits intodecred:release-v2.1from
Conversation
For at least the past 5 years, due to garbage collector design, Go has not optimized small non-pointer types to fit inside interface headers, and instead always uses a pointer to data, if the type is not already a pointer. This means that writeElement, which was written before this time to avoid unnecessary heap allocations, was now causing heap allocations for each special cased non-pointer type. This commit rewrites writeElement to only special case pointers to types, and to pass all elements by pointer. Co-authored-by: David Hill <dhill@mindcry.org>
This updates the 2.1 release branch to use the latest version of the wire module which includes reduced allocations writing messages to the p2p network. In particular, the following updated module version is used: - github.com/decred/dcrd/wire@v1.7.2
jrick
approved these changes
Dec 8, 2025
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
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
2 participants
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Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be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.
This updates the 2.1 release branch to use the latest version of the
wiremodule which includes reduced allocations writing messages to the p2p network.In particular, the following updated module version is used:
Note that it also cherry picks all of the commits included in updates to the
wiremodule to ensure they are also included in the release branch even though it is not strictly necessary sincego.modhas been updated to require the new release and thus will pull in the new code. However, from past experience, not having code backported to modules available in the release branch too leads to headaches for devs building from source in their local workspace with overrides such as those ingo.work.The following PRs are included: