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Reuse the chunk size header of full chunks in checksum trailers (6,441 → 39 allocations per 100 MiB) - #3490

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czj wants to merge 11 commits into

aws:version-3from

czj:perf/cache-chunk-header

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Reuse the chunk size header of full chunks in checksum trailers (6,441 → 39 allocations per 100 MiB)#3490
czj wants to merge 11 commits into
aws:version-3from
czj:perf/cache-chunk-header

Commits on Oct 16, 2026
- Reduce memory allocations in chunked checksum uploads
  kpumuk
  committed
  3db5d32
Commits on Nov 2, 2026
- Merge version-3 into chunked-digest
  jterapin
  committed
  d865ff3
Commits on Nov 5, 2026
- Merge version-3 into chunked-digest
  jterapin
  committed
  a60db01
- Preserve custom body compatibility for trailer checksums
  jterapin
  committed
  b708773
- Classify checksum allocation improvements as a core feature
  jterapin
  committed
  cbc11ab
- Temporarily include ruby-ll unpin from PR 3467 for CI
  jterapin
  committed
  e403f90
- Reuse a single read buffer when computing request checksums in a header
  
  czj
  authored and
  jterapin
  committed
  dfeaede
- Preserve custom body compatibility for header checksums
  jterapin
  committed
  32e68dc
Commits on Nov 6, 2026
- Keep the trailer read buffer when a reader returns another String
  
  czj
  and
  claude
  committed
  2f3c5a3
- Reuse the chunk size header of full chunks in checksum trailers
  
  czj
  and
  claude
  committed
  278d7f3
- Cover a full chunk after a short read, size from the cached header
  
  czj
  and
  claude
  committed
  dc8bab5