Skip to content

fix: use Buffer.alloc() with snappy-wasm #8671

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Open
twoeths wants to merge 3 commits into
base: cayman/snappy
Choose a base branch
from
+6 −4
Open

fix: use Buffer.alloc() with snappy-wasm #8671

Changes from 1 commit
Commits
Show all changes
3 commits
Select commit Hold shift + click to select a range
3d1e1c7
fix: use Buffer.alloc()
twoeths Dec 5, 2025
a84c178
fix: use Buffer.alloc() in benchmark
twoeths Dec 5, 2025
7fc5ed0
chore: fix comments
twoeths Dec 5, 2025
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
6 changes: 4 additions & 2 deletions packages/beacon-node/src/network/gossip/encoding.ts
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -104,7 +104,8 @@ export class DataTransformSnappy implements DataTransform {
}

// Only after sanity length checks, we can decompress the data
const uncompressedData = Buffer.allocUnsafe(uncompressedDataLength);
// using Buffer.allocUnsafe() caused huge MarkSweepCompact gc on the main thread of sas nodes
const uncompressedData = Buffer.alloc(uncompressedDataLength);
decoder.decompress_into(data, uncompressedData);
return uncompressedData;
}
Expand All @@ -120,7 +121,8 @@ export class DataTransformSnappy implements DataTransform {
throw Error(`ssz_snappy encoded data length ${data.length} > ${this.maxSizePerMessage}`);
}

const compressedData = Buffer.allocUnsafe(snappyWasm.max_compress_len(data.length));
// using Buffer.allocUnsafe() caused huge MarkSweepCompact gc on the main thread of sas nodes
const compressedData = Buffer.alloc(snappyWasm.max_compress_len(data.length));
const compressedLen = encoder.compress_into(data, compressedData);
return compressedData.subarray(0, compressedLen);
}
Expand Down
Loading