---
cases/sched_params.conf | 120 +++++++++++++++++++++++++++++++
repos/domain/sched_params.py | 136 ++++++++++++++++-------------------
repos/domain/sched_params_flag.py | 148 ++++++++++++++++++++++++++++++++++++++
3 files changed, 330 insertions(+), 74 deletions(-)
create mode 100755 cases/sched_params.conf
create mode 100644 repos/domain/sched_params_flag.py
diff --git a/cases/sched_params.conf b/cases/sched_params.conf
new file mode 100755
index 0000000..6f7acce
--- /dev/null
+++ b/cases/sched_params.conf
@@ -0,0 +1,120 @@
+domain:install_linux_cdrom
+ guestname
+ $defaultname
+ guestos
+ $defaultos
+ guestarch
+ $defaultarch
+ vcpu
+ $defaultvcpu
+ memory
+ $defaultmem
+ hddriver
+ $defaulthd
+ nicdriver
+ $defaultnic
+ imageformat
+ qcow2
+
+domain:sched_params
+ guestname
+ $defaultname
+ vcpuquota
+ 1000
+ vcpuperiod
+ 200000
+ emulatorperiod
+ 300000
+ emulatorquota
+ 4000
+ cpushares
+ 5000
+
+domain:sched_params_flag
+ guestname
+ $defaultname
+ vcpuquota
+ 1001
+ vcpuperiod
+ 200001
+ emulatorperiod
+ 300001
+ emulatorquota
+ 4001
+ cpushares
+ 5001
+ flag
+ current
+
+domain:sched_params_flag
+ guestname
+ $defaultname
+ vcpuquota
+ 1002
+ vcpuperiod
+ 200002
+ emulatorperiod
+ 300002
+ emulatorquota
+ 4002
+ cpushares
+ 5002
+ flag
+ live
+
+domain:sched_params_flag
+ guestname
+ $defaultname
+ vcpuquota
+ 1003
+ vcpuperiod
+ 200003
+ emulatorperiod
+ 300003
+ emulatorquota
+ 4003
+ cpushares
+ 5003
+ flag
+ config
+
+domain:destroy
+ guestname
+ $defaultname
+
+domain:sched_params_flag
+ guestname
+ $defaultname
+ vcpuquota
+ 1004
+ vcpuperiod
+ 200004
+ emulatorperiod
+ 300004
+ emulatorquota
+ 4004
+ cpushares
+ 5004
+ flag
+ current
+
+domain:sched_params_flag
+ guestname
+ $defaultname
+ vcpuquota
+ 1005
+ vcpuperiod
+ 200005
+ emulatorperiod
+ 300005
+ emulatorquota
+ 4005
+ cpushares
+ 5005
+ flag
+ config
+
+domain:undefine
+ guestname
+ $defaultname
+
diff --git a/repos/domain/sched_params.py b/repos/domain/sched_params.py
index 786e357..1be5986 100644
--- a/repos/domain/sched_params.py
+++ b/repos/domain/sched_params.py
@@ -1,95 +1,83 @@
#!/usr/bin/evn python
-# To test domain scheduler parameters
-
-import os
-import sys
-import time
-import commands
+# Set and show scheduler parameters
import libvirt
+from libvirt import libvirtError
from src import sharedmod
from utils import utils
-required_params = ('guestname', 'capshares',)
+import os
+
+required_params = ('guestname', 'vcpuquota', 'vcpuperiod', 'emulatorperiod', \
+ 'emulatorquota', 'cpushares',)
optional_params = {}
-def check_guest_status(domobj):
- """Check guest current status"""
- state = domobj.info()[0]
- if state == libvirt.VIR_DOMAIN_SHUTOFF or state == libvirt.VIR_DOMAIN_SHUTDOWN:
- domobj.create()
- time.sleep(30)
- # Add check function
- return True
+def check_sched_params(guestname, sched_params_after):
+ """Check scheduler parameters validity after setting
+ """
+
+ if os.path.exists("/cgroup"):
+ """ Add the judgment method, since the cgroup path is different on
+ rhel6 and rhel7.
+ if the folder cgroup is existed, it means the host os is rhel6,
+ if not existed, it means the the host of is rhel7
+ """
+
+ cgroup_path = "cat /cgroup/cpu/libvirt/qemu/%s/" % guestname
else:
- return True
-
-def check_sched_params(*args):
- """Check scheduler parameters validity after setting"""
- hypervisor, dicts, guestname, domobj = args
- sched_dict = {}
- if hypervisor == "xen":
- sched_dict = eval(commands.getoutput('xm sched-credit -d %s'
- % guestname))
- if sched_dict['weight'] == dicts['weight'] and \
- sched_dict['cap'] == dicts['cap']:
- return 0
- else:
+ cgroup_path = "cat /sys/fs/cgroup/cpu\,cpuacct/machine.slice/" \
+ "machine-qemu\\\\x2d%s.scope/" % guestname
+
+ sched_dicts = {'vcpu_quota': 'vcpu0/cpu.cfs_quota_us', \
+ 'vcpu_period': 'vcpu0/cpu.cfs_period_us', \
+ 'emulator_period': 'emulator/cpu.cfs_period_us', \
+ 'emulator_quota': 'emulator/cpu.cfs_quota_us', \
+ 'cpu_shares': 'cpu.shares'}
+
+ for sched_key in sched_dicts:
+ cmd = cgroup_path + sched_dicts[sched_key]
+ status, cmd_value = utils.exec_cmd(cmd, shell=True)
+ if status:
+ logger.error("failed to get ***%s*** value" % sched_key)
return 1
- if hypervisor == "kvm":
- sched_dict = domobj.schedulerParameters()
- if sched_dict['cpu_shares'] == dicts['cpu_shares']:
- return 0
- else:
+ sched_dicts[sched_key] = int(cmd_value[0])
+ if sched_dicts[sched_key] != sched_params_after[sched_key]:
+ logger.error("set scheduler parameters failed")
return 1
+ logger.info("set scheduler parameters success")
+ return 0
+
def sched_params(params):
- """Setting scheduler parameters, argument params is a
- dictionary data type.which includes 'weight' and 'cap'
- keys, by assigning different value to 'weight' and 'cap'
- to verify validity of the result
+ """ Change and get the scheduler parameters
"""
- hypervisor = utils.get_hypervisor()
+ global logger
logger = params['logger']
guestname = params['guestname']
- conn = sharedmod.libvirtobj['conn']
-
- domobj = conn.lookupByName(guestname)
-
- if check_guest_status(domobj):
- sched_params = domobj.schedulerParameters()
- logger.info("original scheduler parameters: %s\n" % sched_params)
-
- if 'xen' in hypervisor:
- str_weight = params['weight']
- str_cap = params['cap']
- for wgt in eval(str_weight):
- for cap in eval(str_cap):
- dicts = {'weight': wgt, 'cap': cap}
- logger.info("setting scheduler parameters: %s" % dicts)
- domobj.setSchedulerParameters(dicts)
- sched_params = domobj.schedulerParameters()
- logger.info("current scheduler parameters: %s\n" % sched_params)
-
- retval = check_sched_params(hypervisor, dicts,
- guestname, domobj)
- if retval != 0:
- return 1
- elif 'kvm' in hypervisor:
- cpu_shares = int(params['cpushares'])
- dicts = {'cpu_shares': cpu_shares}
+ dicts = {'vcpu_quota': int(params['vcpuquota']), \
+ 'vcpu_period': int(params['vcpuperiod']), \
+ 'emulator_period': int(params['emulatorperiod']), \
+ 'emulator_quota': int(params['emulatorquota']), \
+ 'cpu_shares': int(params['cpushares'])}
+
+ try:
+ conn = sharedmod.libvirtobj['conn']
+ domobj = conn.lookupByName(guestname)
+
+ sched_type = str(domobj.schedulerType()[0])
+ logger.info("the scheduler type is: %s" % sched_type)
+ sched_params_original = domobj.schedulerParameters()
+ logger.info("original scheduler parameters: %s" % sched_params_original)
logger.info("setting scheduler parameters: %s" % dicts)
domobj.setSchedulerParameters(dicts)
- sched_params = domobj.schedulerParameters()
- logger.info("current scheduler parameters: %s\n" % sched_params)
- retval = check_sched_params(hypervisor, dicts,
- guestname, domobj)
- if retval != 0:
- return 1
- else:
- logger.error("unsupported hypervisor type: %s" % hypervisor)
- return 1
+ sched_params_after = domobj.schedulerParameters()
+ logger.info("current scheduler parameters: %s" % sched_params_after)
- return 0
+ ret = check_sched_params(guestname, sched_params_after)
+
+ return ret
+ except libvirtError, e:
+ logger.error("libvirt call failed: " + str(e))
+ return 1
diff --git a/repos/domain/sched_params_flag.py b/repos/domain/sched_params_flag.py
new file mode 100644
index 0000000..19bcb13
--- /dev/null
+++ b/repos/domain/sched_params_flag.py
@@ -0,0 +1,148 @@
+#!/usr/bin/evn python
+# Set and show scheduler parameters with flag, such as "--current", "--live"
+# and "--config"
+
+import libvirt
+from libvirt import libvirtError
+
+from src import sharedmod
+from utils import utils
+from xml.dom import minidom
+import os
+
+required_params = ('guestname', 'vcpuquota', 'vcpuperiod', 'emulatorperiod', \
+ 'emulatorquota', 'cpushares', 'flag',)
+optional_params = {}
+
+def check_sched_params_flag(guestname, domobj, sched_params_after, domstate, \
+ flags_value):
+ """Check scheduler parameters validity after setting
+ """
+
+ if (domstate == 1) and ((flags_value == 0) or (flags_value == 1)):
+ """While the domain is running and the flag is "--live" or "--current",
+ the value can be checked with the cgroup value
+ As for the other condition, the value can be checked with the domain
+ config xml
+ """
+
+ if os.path.exists("/cgroup"):
+ """ Add the judgment method, since the cgroup path is different on
+ rhel6 and rhel7.
+ if the folder cgroup is existed, it means the host os is rhel6,
+ if not existed, it means the the host of is rhel7
+ """
+
+ cgroup_path = "cat /cgroup/cpu/libvirt/qemu/%s/" % guestname
+ else:
+ cgroup_path = "cat /sys/fs/cgroup/cpu\,cpuacct/machine.slice/" \
+ "machine-qemu\\\\x2d%s.scope/" % guestname
+
+ sched_dicts = {'vcpu_quota': 'vcpu0/cpu.cfs_quota_us', \
+ 'vcpu_period': 'vcpu0/cpu.cfs_period_us', \
+ 'emulator_period': 'emulator/cpu.cfs_period_us', \
+ 'emulator_quota': 'emulator/cpu.cfs_quota_us', \
+ 'cpu_shares': 'cpu.shares'}
+
+ for sched_key in sched_dicts:
+ cmd = cgroup_path + sched_dicts[sched_key]
+ status, cmd_value = utils.exec_cmd(cmd, shell=True)
+ if status:
+ logger.error("failed to get ***%s*** value" % sched_key)
+ return 1
+ sched_dicts[sched_key] = int(cmd_value[0])
+ if sched_dicts[sched_key] != sched_params_after[sched_key]:
+ logger.error("set scheduler parameters failed")
+ return 1
+
+ else:
+ guestxml = domobj.XMLDesc(libvirt.VIR_DOMAIN_XML_INACTIVE)
+ logger.debug("domain %s config xml :\n%s" % (domobj.name(), guestxml))
+
+ xmlrootnode = minidom.parseString(guestxml)
+
+ sched_dicts = {'vcpu_quota': 'quota', 'vcpu_period': 'period', \
+ 'emulator_period': 'emulator_period', \
+ 'emulator_quota': 'emulator_quota', \
+ 'cpu_shares': 'shares'}
+
+ for sched_key in sched_dicts:
+ node = xmlrootnode.getElementsByTagName(sched_dicts[sched_key])[0]
+ sched_dicts[sched_key] = int(node.childNodes[0].data)
+ if sched_dicts[sched_key] != sched_params_after[sched_key]:
+ logger.error("set scheduler parameters failed")
+ return 1
+
+ logger.info("set scheduler parameters success")
+ return 0
+
+def sched_params_flag(params):
+ """ Change and get the scheduler parameters
+ """
+
+ global logger
+ logger = params['logger']
+ guestname = params['guestname']
+ dicts = {'vcpu_quota': int(params['vcpuquota']), \
+ 'vcpu_period': int(params['vcpuperiod']), \
+ 'emulator_period': int(params['emulatorperiod']), \
+ 'emulator_quota': int(params['emulatorquota']), \
+ 'cpu_shares': int(params['cpushares'])}
+ flags = params['flag']
+
+ try:
+ conn = sharedmod.libvirtobj['conn']
+ domobj = conn.lookupByName(guestname)
+
+ domstate = domobj.state(0)[0]
+ """following is the domain state:
+ '1' is running status
+ '5' is shutoff status
+ please see the following reference link:
+ http://libvirt.org/html/libvirt-libvirt.html#virDomainState
+ """
+ if domstate == 1:
+ logger.info("the state of virtual machine is ***running***")
+ elif domstate == 5:
+ logger.info("the state of virtual machine is ***shutoff***")
+ else:
+ logger.error("the state of virtual machine is not running or " \
+ "shutoff now, it is out of the check range of this " \
+ "script. Please check the domain status.")
+ return 1
+
+ """virDomainModificationImpact
+ VIR_DOMAIN_AFFECT_CURRENT = 0
+ VIR_DOMAIN_AFFECT_LIVE = 1
+ VIR_DOMAIN_AFFECT_CONFIG = 2
+ """
+
+ if flags == "current":
+ flags_value = libvirt.VIR_DOMAIN_AFFECT_CURRENT
+ elif flags == "live":
+ flags_value = libvirt.VIR_DOMAIN_AFFECT_LIVE
+ elif flags == "config":
+ flags_value = libvirt.VIR_DOMAIN_AFFECT_CONFIG
+ else:
+ logger.error("the value of flags is not correct, please check " \
+ "the conf file")
+ return 1
+
+ sched_type = str(domobj.schedulerType()[0])
+ logger.info("the scheduler type is: %s" % sched_type)
+ sched_params_original = domobj.schedulerParametersFlags(flags_value)
+ logger.info("original scheduler parameters with flag ***%s***: %s" % \
+ (flags, sched_params_original))
+ logger.info("setting scheduler parameters: %s" % dicts)
+ domobj.setSchedulerParametersFlags(dicts, flags_value)
+ sched_params_after = domobj.schedulerParametersFlags(flags_value)
+ logger.info("current scheduler parameters with flag ***%s***: %s" % \
+ (flags, sched_params_after))
+
+ ret = check_sched_params_flag(guestname, domobj, sched_params_after, \
+ domstate, flags_value)
+
+ return ret
+ except libvirtError, e:
+ logger.error("libvirt call failed: " + str(e))
+ return 1
--
1.8.3.1
--
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