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gh-131253: free-threaded build support for pystats (gh-137189)

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Allow the --enable-pystats build option to be used with free-threading.  The
stats are now stored on a per-interpreter basis, rather than process global.
For free-threaded builds, the stats structure is allocated per-thread and
then periodically merged into the per-interpreter stats structure (on thread
exit or when the reporting function is called). Most of the pystats related
code has be moved into the file Python/pystats.c.
This commit is contained in:
Neil Schemenauer 2025-11-03 11:36:37 -08:00 • committed by GitHub
parent cf1a2c1ee4
commit c98c5b3449
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24 changed files with 1269 additions and 485 deletions
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16
Python/gc_free_threading.c
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@ -2362,8 +2362,9 @@ gc_collect_main(PyThreadState *tstate, int generation, _PyGC_Reason reason)
assert(generation >= 0 && generation < NUM_GENERATIONS);
#ifdef Py_STATS
if (_Py_stats) {
_Py_stats->object_stats.object_visits = 0;
PyStats *s = _PyStats_GET();
if (s) {
s->object_stats.object_visits = 0;
}
#endif
GC_STAT_ADD(generation, collections, 1);
@ -2426,10 +2427,13 @@ gc_collect_main(PyThreadState *tstate, int generation, _PyGC_Reason reason)
GC_STAT_ADD(generation, objects_collected, m);
#ifdef Py_STATS
if (_Py_stats) {
GC_STAT_ADD(generation, object_visits,
_Py_stats->object_stats.object_visits);
_Py_stats->object_stats.object_visits = 0;
{
PyStats *s = _PyStats_GET();
if (s) {
GC_STAT_ADD(generation, object_visits,
s->object_stats.object_visits);
s->object_stats.object_visits = 0;
}
}
#endif