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test_pendingcalls_threaded times out on Windows free-threading builds #114746
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I cannot reproduce on my Windows 11 (10.0.22621.3007) VM :(
Faulthandler tracebacks (with source lines added):
Thread 0x00001f80 (most recent call first): File "C:\Users\Administrator\buildarea\3.x.itamaro-win64-srv-22-aws.x64.nogil\build\Lib\test\test_capi\test_misc.py", line 1344 in pendingcalls_thread context.event.set() File "C:\Users\Administrator\buildarea\3.x.itamaro-win64-srv-22-aws.x64.nogil\build\Lib\threading.py", line 1027 in run ... Thread 0x000032d0 (most recent call first): File "C:\Users\Administrator\buildarea\3.x.itamaro-win64-srv-22-aws.x64.nogil\build\Lib\test\test_capi\test_misc.py", line 1304 in pendingcalls_wait a = i*i File "C:\Users\Administrator\buildarea\3.x.itamaro-win64-srv-22-aws.x64.nogil\build\Lib\test\test_capi\test_misc.py", line 1332 in test_pendingcalls_threaded self.pendingcalls_wait(context.l, n, context) ...On my Win10 fresh debug nogil build, test.test_capi paused several minutes on
test_trashcan_python_class1 (test.test_capi.test_misc.CAPITest.test_trashcan_python_class1)
I went away to eat and upon return it had finished ok in 14 minutes, which I believe is a few times as long as normal.@colesbury Is this a high-priority issue for you, or normal behaviour at this stage of the feature?
We might want to increase the timeout, and revisit GC performance later.- added a commit that references this issue
on Jan 31, 2024 The six builds since the PR merged are all green: https://buildbot.python.org/all/#/builders/1241
test.test_capi.test_misc.TestPendingCalls.test_pendingcalls_threadedusually (but not always) times out on the AMD64 Windows Server 2022 NoGIL 3.x buildbot, e.g. here: https://buildbot.python.org/all/#/builders/1241/builds/1116/steps/4/logs/stdioIt started 5 days ago, after #114262 (Implement GC for free-threaded builds) and #114479 (Make threading.Lock a real class, not a factory function), and it looks like it got more frequent after #113412 (Use pointer for interp->obmalloc state). (This is just from looking at the buildbot logs, I haven't bisected.)
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