Python使用psutil库实现系统监控与管理详解

pip install psutil

import psutil

# 获取CPU逻辑核心数
print("CPU逻辑核心数:", psutil.cpu_count())

# 获取内存总量和可用内存
mem = psutil.virtual_memory()
print(f"总内存：{mem.total} bytes")
print(f"可用内存：{mem.available} bytes")

# 获取磁盘分区信息
disk_partitions = psutil.disk_partitions()
for partition in disk_partitions:
    print(f"磁盘分区：{partition.device}, 挂载点：{partition.mountpoint}")

# 获取网络连接信息
connections = psutil.net_connections()
print("网络连接数:", len(connections))

# 获取所有进程列表
processes = psutil.process_iter()
for process in processes:
    print(f"进程PID：{process.pid}, 名称：{process.name()}")

# 获取指定进程的详细信息
pid = 1234  # 指定进程的PID
process = psutil.Process(pid)
print("进程名称：", process.name())
print("进程状态：", process.status())
print("进程占用CPU时间：", process.cpu_times())
print("进程内存使用情况：", process.memory_info())

# 终止指定PID的进程
pid_to_terminate = 1234
process_to_terminate = psutil.Process(pid_to_terminate)
process_to_terminate.terminate()

# 获取系统启动时间
boot_time = psutil.boot_time()
print("系统启动时间：", boot_time)