# vllm 0.33.0 (v0.33.0): 3 option(s)

name                             type  default  help
-------------------------------  ----  -------  ----------------------------------------
--enable-prefix-caching          bool  unset    Whether to enable prefix caching.
--mamba-cache-mode [deprecated]  str   unset    --mamba-cache-mode is deprecated and will be removed in
                                                v0.33.0. It has no effect: Mamba prefix caching follows
                                                --enable-prefix-caching.
--prefix-caching-hash-algo       str   sha256   Set the hash algorithm for prefix caching: - "sha256"
                                                uses Pickle for object serialization before hashing.
                                                This is the current default, as SHA256 is the most
                                                secure choice to avoid potential hash collisions. -
                                                "sha256_cbor" provides a reproducible, cross-language
                                                compatible hash. It serializes objects using canonical
                                                CBOR and hashes them with SHA-256. - "xxhash" uses
                                                Pickle serialization with xxHash (128-bit) for faster,
                                                non-cryptographic hashing. Requires the optional
                                                ``xxhash`` package. IMPORTANT: Use of a hashing
                                                algorithm that is not considered cryptographically
                                                secure theoretically increases the risk of hash
                                                collisions, which can cause undefined behavior or even
                                                leak private information in multi-tenant environments.
                                                Even if collisions are still very unlikely, it is
                                                important to consider your security risk tolerance
                                                against the performance benefits before turning this on.
                                                - "xxhash_cbor" combines canonical CBOR serialization
                                                with xxHash for reproducible hashing. Requires the
                                                optional ``xxhash`` package.
