traverseda
/
cpython
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

This is a long-ago patch I submitted to SF (1100924) to time the gc passes. 

Barry approved it awhile ago.  Been sitting in my sandbox for awhile as
well.
This commit is contained in:
Skip Montanaro 2006-04-21 01:33:40 +00:00
parent f75225b448
commit c34b931d78
1 changed files with 29 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

29
Modules/gcmodule.c
View File

@ -734,6 +734,8 @@ collect(int generation)
PyGC_Head unreachable; /* non-problematic unreachable trash */ PyGC_Head unreachable; /* non-problematic unreachable trash */
PyGC_Head finalizers; /* objects with, & reachable from, __del__ */ PyGC_Head finalizers; /* objects with, & reachable from, __del__ */
PyGC_Head *gc; PyGC_Head *gc;
static PyObject *tmod = NULL;
double t1 = 0.0;
if (delstr == NULL) { if (delstr == NULL) {
delstr = PyString_InternFromString("__del__"); delstr = PyString_InternFromString("__del__");
@ -741,7 +743,23 @@ collect(int generation)
Py_FatalError("gc couldn't allocate \"__del__\""); Py_FatalError("gc couldn't allocate \"__del__\"");
} }
if (tmod == NULL) {
tmod = PyImport_ImportModule("time");
if (tmod == NULL)
PyErr_Clear();
}
if (debug & DEBUG_STATS) { if (debug & DEBUG_STATS) {
if (tmod != NULL) {
PyObject *f = PyObject_CallMethod(tmod, "time", NULL);
if (f == NULL) {
PyErr_Clear();
}
else {
t1 = PyFloat_AsDouble(f);
Py_DECREF(f);
}
}
PySys_WriteStderr("gc: collecting generation %d...\n", PySys_WriteStderr("gc: collecting generation %d...\n",
generation); generation);
PySys_WriteStderr("gc: objects in each generation:"); PySys_WriteStderr("gc: objects in each generation:");
@ -814,6 +832,17 @@ collect(int generation)
if (debug & DEBUG_COLLECTABLE) { if (debug & DEBUG_COLLECTABLE) {
debug_cycle("collectable", FROM_GC(gc)); debug_cycle("collectable", FROM_GC(gc));
} }
if (tmod != NULL && (debug & DEBUG_STATS)) {
PyObject *f = PyObject_CallMethod(tmod, "time", NULL);
if (f == NULL) {
PyErr_Clear();
}
else {
t1 = PyFloat_AsDouble(f)-t1;
Py_DECREF(f);
PySys_WriteStderr("gc: %.4fs elapsed.\n", t1);
}
}
} }
/* Clear weakrefs and invoke callbacks as necessary. */ /* Clear weakrefs and invoke callbacks as necessary. */