def test_update_cpu_metrics(self):
"""Tests updating cpu stats from cgroups."""
cpumetrics = metrics.read_cpu_stats('treadmill/apps/appname')
cpu_usage = 100
cpu_ratio = .5
time_delta = 10
cpu_count = 1
cpu_shares = 10
total_bogomips = 100
requested_ratio = cpu_ratio * 100
usage_ratio = ((cpu_usage * total_bogomips) /
(time_delta * cpu_shares) / cpu_count)
usage = ((cpu_usage * total_bogomips) /
(time_delta * sysinfo.BMIPS_PER_CPU) / cpu_count * 100)
self.assertEquals((usage, requested_ratio, usage_ratio), cpumetrics)
def test_read_cpu_metrics(self):
"""Tests updating cpu stats from cgroups."""
cpumetrics = metrics.read_cpu_stats('treadmill/apps/appname')
self.assertEqual(
cpumetrics, {
'cpu.stat': {
'nr_periods': 0,
'nr_throttled': 0,
'throttled_time': 0
},
'cpuacct.stat': {
'system': 309900720000000,
'user': 183352600000000
},
'cpuacct.usage': 100,
'cpu.shares': 1024,
'cpuacct.usage_percpu': [50, 50]
})