Skip to content

Use CRC32C for checksums instead of MD5#6442

Open
nadav-govari wants to merge 1 commit into
mainfrom
nadav/crc32
Open

Use CRC32C for checksums instead of MD5#6442
nadav-govari wants to merge 1 commit into
mainfrom
nadav/crc32

Conversation

@nadav-govari
Copy link
Copy Markdown
Collaborator

Description

Spans show that MD5 computations can take on the order of seconds, and were being computed on the non-blocking threads. Luckily we were only doing multipart uploads on massive splits so the vast majority of our uploads were unaffected.

MD5 isn't recommended anymore anyway, and on modern architecture, CRC32C has hardware acceleration. (Theres a software fallback if the architecture doesnt support it: https://docs.rs/crc32c/latest/crc32c/)

How was this PR tested?

Local deployment uploads succeed.

@nadav-govari nadav-govari requested a review from a team as a code owner May 18, 2026 20:23
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment

Labels

None yet

Projects

None yet

Development

Successfully merging this pull request may close these issues.

1 participant