8:28 p.m.
Signed-off-by: Luyao Huang <lhuang(a)redhat.com>
---
cases/linux_domain.conf | 6 +++
repos/domain/cpu_status.py | 113 +++++++++++++++++++++++++++++++++++++++++++++
2 files changed, 119 insertions(+)
create mode 100644 repos/domain/cpu_status.py
diff --git a/cases/linux_domain.conf b/cases/linux_domain.conf
index 0a7d134..9f64226 100644
--- a/cases/linux_domain.conf
+++ b/cases/linux_domain.conf
@@ -269,6 +269,12 @@ virconn:connection_security_model
guestname
$defaultname
+domain:virDomain_getCPUStats
+ guestname
+ $defaultname
+ conn
+ qemu:///system
+
domain:destroy
guestname
$defaultname
diff --git a/repos/domain/cpu_status.py b/repos/domain/cpu_status.py
new file mode 100644
index 0000000..6e511c0
--- /dev/null
+++ b/repos/domain/cpu_status.py
@@ -0,0 +1,113 @@
+#!/usr/bin/env python
+import libvirt
+from libvirt import libvirtError
+from utils import utils
+
+required_params = ('guestname',)
+optional_params = {'conn': 'qemu:///system'}
+
+ONLINE_CPU = '/sys/devices/system/cpu/online'
+CGROUP_PERCPU =
'/sys/fs/cgroup/cpuacct/machine.slice/machine-qemu\\x2d%s.scope/cpuacct.usage_percpu'
+CGROUP_PERVCPU =
'/sys/fs/cgroup/cpuacct/machine.slice/machine-qemu\\x2d%s.scope/vcpu%d/cpuacct.usage_percpu'
+CGROUP_USAGE =
'/sys/fs/cgroup/cpuacct/machine.slice/machine-qemu\\x2d%s.scope/cpuacct.usage'
+CGROUP_STAT =
'/sys/fs/cgroup/cpuacct/machine.slice/machine-qemu\\x2d%s.scope/cpuacct.stat'
+
+def getcputime(a):
+ return open(a[0]).read().split()[a[1]]
+
+def virtgetcputime(a):
+ return a[0].getCPUStats(0)[a[1]][a[2]]
+
+def getvcputime(a):
+ ret = 0
+ for i in range(int(a[0])):
+ ret += int(open(CGROUP_PERVCPU % (a[1], i)).read().split()[a[2]])
+
+ return ret
+
+def virtgettotalcputime(a):
+ return a[0].getCPUStats(1)[0][a[1]]
+
+def virtgettotalcputime2(a):
+ return a[0].getCPUStats(1)[0][a[1]]/10000000
+
+def cpu_status(params):
+ """
+ test API for getCPUStats in class virDomain
+ """
+ logger = params['logger']
+ fail=0
+
+ cpu = utils.file_read(ONLINE_CPU)
+ logger.info("host online cpulist is %s" % cpu)
+
+ cpu_tuple = utils.param_to_tuple_nolength(cpu)
+ if not cpu_tuple:
+ logger.info("error in function param_to_tuple_nolength")
+ return 1
+
+ try:
+ conn = libvirt.open(params['conn'])
+
+ logger.info("get connection to libvirtd")
+ guest = params['guestname']
+ vm = conn.lookupByName(guest)
+ vcpus = vm.info()[3]
+ for n in range(len(cpu_tuple)):
+ if not cpu_tuple[n]:
+ continue
+
+ D = utils.get_standard_deviation(getcputime, virtgetcputime, \
+ [CGROUP_PERCPU % guest, n], [vm,n,'cpu_time'])
+ logger.info("Standard Deviation for host cpu %d cputime is %d" %
(n, D))
+
+ """ expectations 403423 is a average collected in a x86_64 low
load machine"""
+ if D > 403423*5:
+ fail=1
+ logger.info("FAIL: Standard Deviation is too big \
+ (biger than %d) for host cpu %d" % (403423*5, n))
+
+ D = utils.get_standard_deviation(getvcputime, virtgetcputime, \
+ [vcpus, guest, n], [vm,n,'vcpu_time'])
+ logger.info("Standard Deviation for host cpu %d vcputime is %d" %
(n, D))
+
+ """ expectations 4034 is a average collected in a x86_64 low
load machine"""
+ if D > 4034*5*vcpus:
+ fail=1
+ logger.info("FAIL: Standard Deviation is too big \
+ (biger than %d) for host cpu time %d" % (4034*5*vcpus,
n))
+
+ D = utils.get_standard_deviation(getcputime, virtgettotalcputime, \
+ [CGROUP_USAGE % guest, 0], [vm,'cpu_time'])
+ logger.info("Standard Deviation for host cpu total cputime is %d" % D)
+
+ """ expectations 313451 is a average collected in a x86_64 low
load machine"""
+ if D > 313451*5*len(cpu_tuple):
+ fail=1
+ logger.info("FAIL: Standard Deviation is too big \
+ (biger than %d) for host cpu time %d" %
(313451*5*len(cpu_tuple), n))
+
+ D = utils.get_standard_deviation(getcputime, virtgettotalcputime2, \
+ [CGROUP_STAT % guest, 3], [vm,'system_time'])
+ logger.info("Standard Deviation for host cpu total system time is %d" %
D)
+
+ """ expectations 10 is a average collected in a x86_64 low load
machine"""
+ if D > 10*5:
+ fail=1
+ logger.info("FAIL: Standard Deviation is too big \
+ (biger than %d) for host system cpu time %d" % (10*5, n))
+
+ D = utils.get_standard_deviation(getcputime, virtgettotalcputime2, \
+ [CGROUP_STAT % guest, 1], [vm,'user_time'])
+ logger.info("Standard Deviation for host cpu total user time is %d" %
D)
+
+ """ expectations 10 is a average collected in a x86_64 low load
machine"""
+ if D > 10*5:
+ fail=1
+ logger.info("FAIL: Standard Deviation is too big \
+ (biger than %d) for host user cpu time %d" % (10*5, n))
+
+ except libvirtError, e:
+ logger.error("API error message: %s" % e.message)
+ fail=1
+ return fail
--
1.8.3.1