写一个监视vsphere client每个虚拟机性能的代码

以下是一个基本的Python代码示例，用于监视vSphere客户端中每个虚拟机的性能：

from pyVim.connect import SmartConnect
from pyVmomi import vim
import ssl

# Disable SSL certificate verification
context = ssl.SSLContext(ssl.PROTOCOL_TLSv1)
context.verify_mode = ssl.CERT_NONE

# Connect to vCenter Server
si = SmartConnect(host="vcenter.example.com", user="username", pwd="password", sslContext=context)

# Get all virtual machines
content = si.RetrieveContent()
vm_view = content.viewManager.CreateContainerView(content.rootFolder, [vim.VirtualMachine], True)
vms = vm_view.view

# Loop through each virtual machine
for vm in vms:
    # Get virtual machine name and performance manager
    vm_name = vm.summary.config.name
    perf_manager = si.content.perfManager

    # Get performance counters for CPU and memory
    counter_cpu = perf_manager.QueryPerfCounterByLevel(entity=None, level=1)
    counter_mem = perf_manager.QueryPerfCounterByLevel(entity=None, level=2)

    # Get CPU and memory usage for the virtual machine
    query_spec_cpu = vim.PerformanceManager.QuerySpec(entity=vm, metricId=counter_cpu[0].key, intervalId=20)
    query_spec_mem = vim.PerformanceManager.QuerySpec(entity=vm, metricId=counter_mem[0].key, intervalId=20)
    result_cpu = perf_manager.QueryPerf(query_spec_cpu)
    result_mem = perf_manager.QueryPerf(query_spec_mem)

    # Print virtual machine name, CPU usage, and memory usage
    print("Virtual machine name: {}".format(vm_name))
    print("CPU usage: {} MHz".format(result_cpu[0].value[0]))
    print("Memory usage: {} MB".format(result_mem[0].value[0] / 1024 / 1024))

# Disconnect from vCenter Server
si.Disconnect()

请注意，此代码仅提供了一种基本示例，您可能需要根据自己的需求进行修改和优化。此外，还需要安装pyVmomi库以与vSphere API进行交互。