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import time, os
from autotest_lib.client.bin import test, autotest_utils
from autotest_lib.client.common_lib import utils
class cpu_hotplug(test.test):
version = 2
# http://developer.osdl.org/dev/hotplug/tests/lhcs_regression-1.6.tgz
def setup(self, tarball = 'lhcs_regression-1.6.tgz'):
tarball = utils.unmap_url(self.bindir, tarball,
self.tmpdir)
autotest_utils.extract_tarball_to_dir(tarball, self.srcdir)
def execute(self):
# Check if the kernel supports cpu hotplug
if autotest_utils.running_config():
autotest_utils.check_for_kernel_feature('HOTPLUG_CPU')
# Check cpu nums, if equals 1, quit.
if autotest_utils.count_cpus() == 1:
print 'Just only single cpu online, quiting...'
sys.exit()
# Have a simple and quick check first, FIX me please.
utils.system('dmesg -c > /dev/null')
for cpu in autotest_utils.cpu_online_map():
if os.path.isfile('/sys/devices/system/cpu/cpu%s/online' % cpu):
utils.system('echo 0 > /sys/devices/system/cpu/cpu%s/online' % cpu, 1)
utils.system('dmesg -c')
time.sleep(3)
utils.system('echo 1 > /sys/devices/system/cpu/cpu%s/online' % cpu, 1)
utils.system('dmesg -c')
time.sleep(3)
# Begin this cpu hotplug test big guru.
os.chdir(self.srcdir)
profilers = self.job.profilers
if not profilers.only():
utils.system('./runtests.sh')
# Do a profiling run if necessary
if profilers.present():
profilers.start(self)
utils.system('./runtests.sh')
profilers.stop(self)
profilers.report(self)
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