gh-150114: Reduce memory usage of test_free_threading.test_iteration (gh-150115)

Reduce NUMITEMS from 100000 to 5000. Peak RSS for the full
test_free_threading suite drops from ~850 MB to ~175 MB.

diff --git a/Lib/test/test_free_threading/test_iteration.py b/Lib/test/test_free_threading/test_iteration.py
index a51ad0cf83a0065453afca5634cf406b6023437f..44d3e9ccfdd14e018d059000325d032e36e63ce7 100644 (file)
--- a/Lib/test/test_free_threading/test_iteration.py
+++ b/Lib/test/test_free_threading/test_iteration.py
@@ -12,7 +12,7 @@ if support.check_sanitizer(thread=True):
     NUMITEMS = 1000
     NUMTHREADS = 2
 else:
-    NUMITEMS = 100000
+    NUMITEMS = 5000
     NUMTHREADS = 5
 NUMMUTATORS = 2