From 0d4a5fb070de28fd58e67ab0d87b4d1cbe5ec8ea Mon Sep 17 00:00:00 2001
From: Victor Stinner <vstinner@redhat.com>
Date: Mon, 26 Nov 2018 17:28:22 +0100
Subject: [PATCH] bpo-33723: Remove busy loop from test_time

The "busy loops" of test_process_time() and test_thread_time() are
not reliable and fail randomly on different CIs. Remove the tests
to make the CIs more reliable.
---
 Lib/test/test_time.py | 37 -------------------------------------
 1 file changed, 37 deletions(-)

diff --git a/Lib/test/test_time.py b/Lib/test/test_time.py
index 16b48a92f327dc..2a1a6748cd41b2 100644
--- a/Lib/test/test_time.py
+++ b/Lib/test/test_time.py
@@ -495,24 +495,6 @@ def test_process_time(self):
         # on Windows
         self.assertLess(stop - start, 0.020)
 
-        # bpo-33723: A busy loop of 100 ms should increase process_time()
-        # by at least 15 ms
-        min_time = 0.015
-        busy_time = 0.100
-
-        # process_time() should include CPU time spent in any thread
-        start = time.process_time()
-        busy_wait(busy_time)
-        stop = time.process_time()
-        self.assertGreaterEqual(stop - start, min_time)
-
-        t = threading.Thread(target=busy_wait, args=(busy_time,))
-        start = time.process_time()
-        t.start()
-        t.join()
-        stop = time.process_time()
-        self.assertGreaterEqual(stop - start, min_time)
-
         info = time.get_clock_info('process_time')
         self.assertTrue(info.monotonic)
         self.assertFalse(info.adjustable)
@@ -533,25 +515,6 @@ def test_thread_time(self):
         # on Windows
         self.assertLess(stop - start, 0.020)
 
-        # bpo-33723: A busy loop of 100 ms should increase thread_time()
-        # by at least 15 ms
-        min_time = 0.015
-        busy_time = 0.100
-
-        # thread_time() should include CPU time spent in current thread...
-        start = time.thread_time()
-        busy_wait(busy_time)
-        stop = time.thread_time()
-        self.assertGreaterEqual(stop - start, min_time)
-
-        # ...but not in other threads
-        t = threading.Thread(target=busy_wait, args=(busy_time,))
-        start = time.thread_time()
-        t.start()
-        t.join()
-        stop = time.thread_time()
-        self.assertLess(stop - start, min_time)
-
         info = time.get_clock_info('thread_time')
         self.assertTrue(info.monotonic)
         self.assertFalse(info.adjustable)