Commit 2847d743 authored by Damien George's avatar Damien George
Browse files

tests/thread: Replace busy waiting loops with a loop that sleeps.

Depending on the thread scheduler, a busy-wait loop can hog the CPU and
make the tests very slow.  So convert such loops to loops that have an
explicit sleep, allowing the worker threads to do their job.
parent f2d732f4
......@@ -3,6 +3,10 @@
#
# MIT license; Copyright (c) 2016 Damien P. George on behalf of Pycom Ltd
try:
import utime as time
except ImportError:
import time
import _thread
def last(l):
......@@ -37,6 +41,6 @@ n_finished = 0
for i in range(n_thread):
_thread.start_new_thread(thread_entry, (10000,))
# busy wait for threads to finish
# wait for threads to finish
while n_finished < n_thread:
pass
time.sleep(1)
......@@ -2,6 +2,10 @@
#
# MIT license; Copyright (c) 2016 Damien P. George on behalf of Pycom Ltd
try:
import utime as time
except ImportError:
import time
import _thread
def fac(n):
......@@ -39,6 +43,7 @@ while True:
with jobs_lock:
if len(output) == n_jobs:
break
time.sleep(1)
# sort and print the results
output.sort(key=lambda x: x[0])
......
......@@ -2,6 +2,10 @@
#
# MIT license; Copyright (c) 2016 Damien P. George on behalf of Pycom Ltd
try:
import utime as time
except ImportError:
import time
import _thread
# function to check the interned string
......@@ -28,8 +32,8 @@ n_qstr_per_thread = 100 # make 1000 for a more stressful test (uses more heap)
for i in range(n_thread):
_thread.start_new_thread(th, (i * n_qstr_per_thread, n_qstr_per_thread))
# busy wait for threads to finish
# wait for threads to finish
while n_finished < n_thread:
pass
time.sleep(1)
print('pass')
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