languages/cpython
languages/cpython
1
0
Fork 0
mirror of https://github.com/python/cpython synced 2024-09-16 00:17:02 +00:00
Code Issues Packages Projects Releases Wiki Activity
cpython/Misc
History
Guido van Rossum 8deb8bc2e5
gh-112287: Speed up Tier 2 (uop) interpreter a little (#112286) 
This makes the Tier 2 interpreter a little faster.
I calculated by about 3%,
though I hesitate to claim an exact number.

This starts by doubling the trace size limit (to 512),
making it more likely that loops fit in a trace.

The rest of the approach is to only load
`oparg` and `operand` in cases that use them.
The code generator know when these are used.

For `oparg`, it will conditionally emit
```
oparg = CURRENT_OPARG();
```
at the top of the case block.
(The `oparg` variable may be referenced multiple times
by the instructions code block, so it must be in a variable.)

For `operand`, it will use `CURRENT_OPERAND()` directly
instead of referencing the `operand` variable,
which no longer exists.
(There is only one place where this will be used.)
2023-11-20 11:25:32 -08:00
..
NEWS.d gh-112287: Speed up Tier 2 (uop) interpreter a little (#112286) 2023-11-20 11:25:32 -08:00
rhel7
ACKS gh-90890: New methods to access mailbox.Maildir message info and flags (#103905) 2023-11-11 17:41:33 +00:00
coverity_model.c
HISTORY Fix a misspelling of Interpeter -> Interpreter (GH-111040) 2023-10-18 15:09:45 -07:00
indent.pro
platform_triplet.c gh-108447: Detect platform triplets for x86_64 GNU/Hurd (#108045) 2023-08-24 22:37:20 +02:00
Porting
python-config.in gh-105407: Remove unused imports (#105554) 2023-06-09 12:50:31 +00:00
python-config.sh.in
python-embed.pc.in
python.man GH-92584: Remove references to Distutils in `PYTHONUSERBASE` (#108040) 2023-08-16 22:43:30 +02:00
python.pc.in gh-99942: python.pc on android/cygwin should link to libpython per configure.ac (GH-100356) 2023-02-21 17:21:24 -08:00
README gh-102809: Remove gdbinit mention in Misc/README (#103269) 2023-04-08 00:04:23 -07:00
README.AIX
README.coverity
README.valgrind
SpecialBuilds.txt gh-108634: Py_TRACE_REFS uses a hash table (#108663) 2023-08-31 18:33:34 +02:00
stable_abi.toml gh-111089: Revert PyUnicode_AsUTF8() changes (#111833) 2023-11-07 22:36:13 +00:00
svnmap.txt
valgrind-python.supp gh-105182: Remove PyEval_AcquireLock() and PyEval_InitThreads() (#105183) 2023-06-01 13:41:56 +02:00
vgrindefs

README 

Python Misc subdirectory
========================

This directory contains files that wouldn't fit in elsewhere.  Some
documents are only of historic importance.

Files found here
----------------

ACKS                    Acknowledgements
HISTORY                 News from previous releases -- oldest last
indent.pro              GNU indent profile approximating my C style
NEWS                    News for this release (for some meaning of "this")
Porting                 Mini-FAQ on porting to new platforms
python-config.in        Python script template for python-config
python.man              UNIX man page for the python interpreter
python.pc.in            Package configuration info template for pkg-config
README                  The file you're reading now
README.AIX              Information about using Python on AIX
README.coverity         Information about running Coverity's Prevent on Python
README.valgrind         Information for Valgrind users, see valgrind-python.supp
SpecialBuilds.txt       Describes extra symbols you can set for debug builds
svnmap.txt              Map of old SVN revs and branches to hg changeset ids,
                        help history-digging
valgrind-python.supp    Valgrind suppression file, see README.valgrind
vgrindefs               Python configuration for vgrind (a generic pretty printer)