Repository navigation

bpo-31336: Speed up type creation, which is highly dominated by slow dict lookups. - #3279

Merged

serhiy-storchaka merged 20 commits into

python:masterfrom

scoder:_fast_pytype_lookup

Oct 1, 2017

Merged

bpo-31336: Speed up type creation, which is highly dominated by slow dict lookups.#3279
serhiy-storchaka merged 20 commits into
python:masterfrom
scoder:_fast_pytype_lookup

Commits on Sep 4, 2017
- Speed up type creation, which is highly dominated by slow dict lookups.
  Stefan Behnel
  committed
  0a865c9
- Update comment after changing the function call that it refers to.
  Stefan Behnel
  committed
  c4779e3
- Ignore any errors (however unlikely) that may happen during the mro chained name lookups in _PyType_Lookup().
  Stefan Behnel
  committed
  ff2ea63
Commits on Sep 5, 2017
- Extract non-caching code from _PyType_Lookup() to use it directly from update_one_slot().
  Stefan Behnel
  committed
  76b1986
- Avoid some useless overhead for the no-basetype case. If "object" ever ceases to be a valid base type, there'll probably be larger code sections to change than this one.
  Stefan Behnel
  committed
  6f98485
Commits on Sep 6, 2017
- Add comment.
  Stefan Behnel
  committed
  d9b726e
- Avoid uselessly searching empty bases for a metaclass. This is quite common in Python 3 now.
  Stefan Behnel
  committed
  be15255
Commits on Sep 10, 2017
- Avoid unsafe handling of borrowed "mro" reference during hash() call.
  Stefan Behnel
  committed
  0736226
- Clean up code and formatting a little.
  Stefan Behnel
  committed
  8bc783f
- Add braces for code style reasons.
  Stefan Behnel
  committed
  66648dd
- Give internal helper function a local name that does not resemble (existing) API names.
  Stefan Behnel
  committed
  85fb3ae
Commits on Sep 11, 2017
- Allow non-dict types for the class dict when looking up names and call PyObject_GetItem() for them.
  Stefan Behnel
  committed
  09e716a
- Lazily calculate name hash in find_name_in_mro() to avoid potential re-calculation if the mapping is not exactly a dict.
  Stefan Behnel
  committed
  1d52082
- Revert "Lazily calculate name hash in find_name_in_mro() to avoid potential re-calculation if the mapping is not exactly a dict."
  Stefan Behnel
  committed
  f09bfd3
- Revert "Allow non-dict types for the class dict when looking up names and call PyObject_GetItem() for them."
  Stefan Behnel
  committed
  824d7cb
Commits on Sep 13, 2017
- add news entry for faster class creation
  Stefan Behnel
  committed
  5184191
- Change nice interface of "find_name_in_mro()" to evil interface eating lookup exceptions, just like "_PyType_Lookup()" did previously.
  Stefan Behnel
  committed
  4efde8e
- Mention amount of speedup in News entry.
  Stefan Behnel
  committed
  f5bce2a
Commits on Sep 14, 2017
- Revert "Change nice interface of "find_name_in_mro()" to evil interface eating lookup exceptions, just like "_PyType_Lookup()" did previously."
  Stefan Behnel
  committed
  02bfef0
- Guard against external live exceptions when calling find_name_in_mro() from functions that swallow live exceptions.
  Stefan Behnel
  committed
  2497858

Commits

Commits on Sep 4, 2017

Commits on Sep 5, 2017

Commits on Sep 6, 2017

Commits on Sep 10, 2017

Commits on Sep 11, 2017

Commits on Sep 13, 2017

Commits on Sep 14, 2017