mirror of
https://github.com/explosion/spaCy.git
synced 2024-11-14 21:57:15 +03:00
5d0d2de955
Add a context manage nlp.memory_zone(), which will begin memory_zone() blocks on the vocab, string store, and potentially other components. Once the memory_zone() block expires, spaCy will free any shared resources that were allocated for the text-processing that occurred within the memory_zone. If you create Doc objects within a memory zone, it's invalid to access them once the memory zone is expired. The purpose of this is that spaCy creates and stores Lexeme objects in the Vocab that can be shared between multiple Doc objects. It also interns strings. Normally, spaCy can't know when all Doc objects using a Lexeme are out-of-scope, so new Lexemes accumulate in the vocab, causing memory pressure. Memory zones solve this problem by telling spaCy "okay none of the documents allocated within this block will be accessed again". This lets spaCy free all new Lexeme objects and other data that were created during the block. The mechanism is general, so memory_zone() context managers can be added to other components that could benefit from them, e.g. pipeline components. I experimented with adding memory zone support to the tokenizer as well, for its cache. However, this seems unnecessarily complicated. It makes more sense to just stick a limit on the cache size. This lets spaCy benefit from the efficiency advantage of the cache better, because we can maintain a (bounded) cache even if only small batches of documents are being processed.
48 lines
1.3 KiB
Cython
48 lines
1.3 KiB
Cython
from cymem.cymem cimport Pool
|
|
from libcpp.vector cimport vector
|
|
from murmurhash.mrmr cimport hash64
|
|
from preshed.maps cimport PreshMap
|
|
|
|
from .morphology cimport Morphology
|
|
from .strings cimport StringStore
|
|
from .structs cimport LexemeC, TokenC
|
|
from .typedefs cimport attr_t, hash_t
|
|
|
|
|
|
cdef LexemeC EMPTY_LEXEME
|
|
|
|
|
|
cdef union LexemesOrTokens:
|
|
const LexemeC* const* lexemes
|
|
const TokenC* tokens
|
|
|
|
|
|
cdef struct _Cached:
|
|
LexemesOrTokens data
|
|
bint is_lex
|
|
int length
|
|
|
|
|
|
cdef class Vocab:
|
|
cdef Pool mem
|
|
cdef readonly StringStore strings
|
|
cdef public Morphology morphology
|
|
cdef public object _vectors
|
|
cdef public object _lookups
|
|
cdef public object writing_system
|
|
cdef public object get_noun_chunks
|
|
cdef readonly int length
|
|
cdef public object lex_attr_getters
|
|
cdef public object cfg
|
|
|
|
cdef const LexemeC* get(self, str string) except NULL
|
|
cdef const LexemeC* get_by_orth(self, attr_t orth) except NULL
|
|
cdef const TokenC* make_fused_token(self, substrings) except NULL
|
|
|
|
cdef const LexemeC* _new_lexeme(self, str string) except NULL
|
|
cdef int _add_lex_to_vocab(self, hash_t key, const LexemeC* lex, bint is_transient) except -1
|
|
|
|
cdef PreshMap _by_orth
|
|
cdef Pool _non_temp_mem
|
|
cdef vector[attr_t] _transient_orths
|