Files
project_6/vllm
muh-pipeline 6148e03bc7 [BASE] vllm/core/evictor_v2.py: CCCL bucket_sort2d design pattern annotation
Random CCCL pick: thrust/examples/bucket_sort2d.cu (108 lines, full read)
Maps to: vllm/core/evictor_v2.py (LRU cache eviction)

bucket_sort2d.cu pattern: transform→sort_by_key→lower_bound/upper_bound
  - point_to_bucket_index ↔ content_hash (prefix cache key)
  - sort_by_key ↔ eviction priority ordering
  - lower_bound/upper_bound ↔ block range lookup

Current LRUEvictor.evict() is O(n) linear scan over OrderedDict.
CCCL pattern suggests sort_by_key → O(1) pop for production scale.
For competition (max_num_seqs=1, bounded blocks): current is sufficient.

Also read: vllm/core/block/prefix_caching_block.py (200 lines)
2026-08-06 02:29:19 +00:00
..