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Add speedups from pyston (#264)

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This should make Python go 30% faster. It does that by trading
away some debuggability, like _tracemalloc. It can be re-enabled
using `make MODE=dbg`.
This commit is contained in:
Gautham 2021-09-04 14:51:37 +05:30 • committed by GitHub
parent 31dd714081
commit 27f7ffd4fd
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GPG key ID: 4AEE18F83AFDEB23
15 changed files with 175 additions and 12 deletions
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22
third_party/python/Python/pylifecycle.c vendored
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@ -21,6 +21,7 @@
#include "third_party/python/Include/ast.h"
#include "third_party/python/Include/boolobject.h"
#include "third_party/python/Include/code.h"
#include "third_party/python/Include/cosmo.h"
#include "third_party/python/Include/codecs.h"
#include "third_party/python/Include/dictobject.h"
#include "third_party/python/Include/errcode.h"
@ -75,9 +76,10 @@ extern void PyLong_Fini(void);
extern int _PyFaulthandler_Init(void);
extern void _PyFaulthandler_Fini(void);
extern void _PyHash_Fini(void);
#ifdef MODE_DBG
extern int _PyTraceMalloc_Init(void);
extern int _PyTraceMalloc_Fini(void);
#endif
#ifdef WITH_THREAD
extern void _PyGILState_Init(PyInterpreterState *, PyThreadState *);
extern void _PyGILState_Fini(void);
@ -257,6 +259,7 @@ import_init(PyInterpreterState *interp, PyObject *sysmod)
{
PyObject *importlib;
PyObject *impmod;
PyObject *cosmomod;
PyObject *sys_modules;
PyObject *value;
@ -296,6 +299,18 @@ import_init(PyInterpreterState *interp, PyObject *sysmod)
Py_FatalError("Py_Initialize: can't save _imp to sys.modules");
}
/* Import the _cosmo module */
cosmomod = PyInit_cosmo();
if (impmod == NULL) {
Py_FatalError("Py_Initialize: can't import _cosmo");
}
else if (Py_VerboseFlag) {
PySys_FormatStderr("import _cosmo # for bonus Cosmopolitan Libc features\n");
}
if (PyDict_SetItemString(sys_modules, "_cosmo", cosmomod) < 0) {
Py_FatalError("Py_Initialize: can't save _cosmo to sys.modules");
}
/* Install importlib as the implementation of import */
value = PyObject_CallMethod(importlib, "_install", "OO", sysmod, impmod);
if (value == NULL) {
@ -462,8 +477,10 @@ _Py_InitializeEx_Private(int install_sigs, int install_importlib)
if (install_sigs)
initsigs(); /* Signal handling stuff, including initintr() */
#ifdef MODE_DBG
if (_PyTraceMalloc_Init() < 0)
Py_FatalError("Py_Initialize: can't initialize tracemalloc");
#endif
initmain(interp); /* Module __main__ */
if (initstdio() < 0) {
@ -652,10 +669,11 @@ Py_FinalizeEx(void)
_PyGC_CollectIfEnabled();
#endif
#ifdef MODE_DBG
/* Disable tracemalloc after all Python objects have been destroyed,
so it is possible to use tracemalloc in objects destructor. */
_PyTraceMalloc_Fini();
#endif
/* Destroy the database used by _PyImport_{Fixup,Find}Extension */
_PyImport_Fini();