On 06/14/2013 03:58 PM, lei yang wrote:
Hi expert,
I read the below page
https://github.com/autotest/virt-test/wiki/PerformanceTesting
I have a question, how could get the vcpu's thread id or vhost's thread id
Lei
If you are asking for the how autotest get them, you can check the code
in qemu_vm.py
For vcpus autotest have a function to get them from the monitor:
def get_vcpu_pids(self, params):
"""
Return the list of vcpu PIDs
@return: the list of vcpu PIDs
"""
vcpu_thread_pattern = params.get("vcpu_thread_pattern",
"thread_id=(\d+)")
return [int(_) for _ in re.findall(vcpu_thread_pattern,
str(self.monitor.info("cpus")))]
And for vhost, object vm has this attribute, you can find the code in
qemu_vm.py too, and it is get from the process ids:
self.vhost_threads = re.findall("\w+\s+(\d+)\s.*\[vhost-%s\]" %
self.get_pid(), o)
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