Hi Alex,

Thanks for your commands, would check them and implement.

Regards,
-Satheesh.

On Mon, 2012-07-23 at 14:17 +0800, Alex Jia wrote:
> On 07/23/2012 12:39 PM, sathn...@linux.vnet.ibm.com wrote:
> > From: Satheesh Rajendran<sathn...@linux.vnet.ibm.com>
> >
> > libvirt autotest patch to test virsh vcpupin command which in turn covers
> > vcpuinfo,vcpucount commands
> > This test covers the following git hub issue
> > https://github.com/autotest/autotest/issues/464
> >
> > Signed-off-by: Satheesh Rajendran<sathn...@linux.vnet.ibm.com>
> > ---
> >   client/tests/libvirt/tests/virsh_vcpupin.py |   86 
> > +++++++++++++++++++++++++++
> >   client/virt/libvirt_vm.py                   |   28 +++++++++
> >   client/virt/subtests.cfg.sample             |    3 +
> >   3 files changed, 117 insertions(+), 0 deletions(-)
> >   create mode 100644 client/tests/libvirt/tests/virsh_vcpupin.py
> >
> > diff --git a/client/tests/libvirt/tests/virsh_vcpupin.py 
> > b/client/tests/libvirt/tests/virsh_vcpupin.py
> > new file mode 100644
> > index 0000000..bae0596
> > --- /dev/null
> > +++ b/client/tests/libvirt/tests/virsh_vcpupin.py
> > @@ -0,0 +1,86 @@
> > +import logging, re, os, commands, string
> > +from autotest.client.shared import utils, error
> > +from autotest.client.virt import libvirt_vm
> > +
> > +def run_virsh_vcpupin(test, params, env):
> > +    """
> > +    Test the command virsh hostname
> > +
> > +    (1) Get the host and guest cpu count
> > +    (2) Call virsh vcpupin for each vcpu with pinning of each cpu
> > +    (3) Check whether the virsh vcpupin has pinned the respective vcpu to 
> > cpu
> > +    (4) TODO: Right now it the testcase covers the pinning one cpu at a 
> > time
> > +              this can be improved by a random number of cpus
> > +    """
> > +
> > +    # Initialize the variables
> > +    expected_affinity = []
> > +    total_affinity = []
> > +    actual_affinity = []
> > +    d = {}
> > +
> > +    def build_actual_info(domname,vcpu):
> Code style, to use 1 whitespace to separate function parameters.
> > +        """
> > +        This function returns list of the vcpu's affinity from
> > +        virsh vcpuinfo output
> > +
> > +        @param: domname: VM Name to operate on
> > +        @param: vcpu: vcpu number for which the affinity is required
> > +        """
> > +        output = libvirt_vm.virsh_vcpuinfo(domname)
> > +        cmd = re.findall('[^Affinity:][-y]+', str(output))
> > +        total_affinity = cmd[vcpu].lstrip()
> > +        actual_affinity = list(total_affinity)
> > +        return actual_affinity
> > +
> > +    def build_expected_info(vcpu,cpu):
> Code style.
> > +        """
> > +        This function returns the list of vcpu's expected affinity build
> > +
> > +        @param: vcpu: vcpu number for which the affinity is required
> > +        @param: cpu: cpu details for the affinity
> > +        """
> > +        expected_affinity = []
> > +        for i in range(int(host_cpu_count)):
> > +            expected_affinity.append('y')
> > +        for i in range(int(host_cpu_count)):
> > +            if cpu != i:
> > +                expected_affinity[i] = '-'
> > +        d[vcpu] = expected_affinity
> > +        return d
> > +
> > +    def virsh_check_vcpupin(domname,vcpu,cpu):
> Code style.
> > +        """
> > +        This function checks the actual and the expected affinity of given 
> > vcpu
> > +        and raises error if not matchs
> > +
> > +        @param: domname:  VM Name to operate on
> > +        @param: vcpu: vcpu number for which the affinity is required
> > +        @param: cpu: cpu details for the affinity
> > +        """
> > +        expected_output = build_expected_info(vcpu,cpu)
> > +        actual_output = build_actual_info(domname,vcpu)
> Code style.
> > +        if expected_output[vcpu] == actual_output:
> Not enough, test case should actually check whether cpu is correctly 
> pinned with host cpu, as usual, you may check 
> /proc/$domain_pid/task/*/status then find 'Cpus_allowed_list' or 
> something like that, you will get a actual host cpu pin list.


> > +            logging.info("successfully pinned cpu:%s -->  vcpu:%s", 
> > cpu,vcpu)


> Code style.
> > +        else:
> > +            raise error.TestFail("Command 'virsh vcpupin %s %s %s' not 
> > succeeded "
> > +                                                             % 
> > (vm_name,vcpu,cpu))
> Code style.
> > +
> > +    # Get the vm name
> > +    vm_name = params.get("main_vm")
> > +    vm = env.get_vm(params["main_vm"])
> > +    vm.verify_alive()
> > +
> > +    # Get the host cpu count
> > +    cmd = "cat /proc/cpuinfo |grep processor|wc -l"
> > +    host_cpu_count_result = utils.run(cmd, ignore_status=False)
> > +    host_cpu_count = host_cpu_count_result.stdout.strip()
> > +
> > +    # Get the guest vcpu count
> > +    guest_vcpu_count = libvirt_vm.virsh_vcpucount_live(vm_name)
> > +
> > +    # Run test case
> > +    for vcpu in range(int(guest_vcpu_count)):
> > +        for cpu in range(int(host_cpu_count)):
> > +            libvirt_vm.virsh_vcpupin(vm_name,vcpu,cpu)
> > +            virsh_check_vcpupin(vm_name,vcpu,cpu)
> Code style.
> > diff --git a/client/virt/libvirt_vm.py b/client/virt/libvirt_vm.py
> > index 9a06f05..d6f1c76 100644
> > --- a/client/virt/libvirt_vm.py
> > +++ b/client/virt/libvirt_vm.py
> > @@ -116,6 +116,34 @@ def virsh_cmd(cmd, uri="", ignore_status=False, 
> > print_info=False):
> >       return ret
> >
> >
> > +def 
> > virsh_vcpupin(domname,vcpu,cpu,uri="",ignore_status=False,print_info=False):
> Code style.
> > +    """
> > +    Changes the cpu affinity for respective vcpu.
> > +    """
> > +    try:
> > +        cmd_vcpupin = "vcpupin %s %s %s" % (domname,vcpu,cpu)
> > +        virsh_cmd(cmd_vcpupin,uri)
> Code style.
> > +    except error.CmdError, detail:
> > +        logging.error("Virsh vcpupin VM %s failed:\n%s", name, detail)
> > +        return False
> > +
> > +
> > +def virsh_vcpuinfo(domname,uri="",ignore_status=False,print_info=False):
> Code style.
> > +    """
> > +    Prints the vcpuinfo of a given domain.
> > +    """
> > +    cmd_vcpuinfo = "vcpuinfo %s" % domname
> > +    return virsh_cmd(cmd_vcpuinfo,uri).stdout.strip()
> > +
> > +
> > +def 
> > virsh_vcpucount_live(domname,uri="",ignore_status=False,print_info=False):
> Code style.
> > +    """
> > +    Prints the vcpucount of a given domain.
> > +    """
> > +    cmd_vcpucount = "vcpucount --live --active %s" % domname
> > +    return virsh_cmd(cmd_vcpucount,uri).stdout.strip()
> Code style.
> > +
> > +
> >   def virsh_freecell(uri = "", ignore_status=False, extra = ""):
> >       """
> >       Prints the available amount of memory on the machine or within a NUMA 
> > cell.
> > diff --git a/client/virt/subtests.cfg.sample 
> > b/client/virt/subtests.cfg.sample
> > index 45b6277..1162178 100644
> > --- a/client/virt/subtests.cfg.sample
> > +++ b/client/virt/subtests.cfg.sample
> > @@ -212,6 +212,9 @@ variants:
> >                   status_error = "yes"
> >                   libvirtd = "off"
> >
> > +    - virsh_vcpupin: install setup image_copy unattended_install.cdrom
> > +        type = virsh_vcpupin
> > +
> >       - virsh_version: install setup image_copy unattended_install.cdrom
> >           type = virsh_version
> >           vms = ''
> 


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