使用 C# 在 WMI 中返回 CPU 使用率
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Returning CPU usage in WMI using C#
提问by jpavlov
采纳答案by L.B
ManagementObjectSearcher searcher = new ManagementObjectSearcher("select * from Win32_PerfFormattedData_PerfOS_Processor");
foreach (ManagementObject obj in searcher.Get())
{
var usage = obj["PercentProcessorTime"];
var name = obj["Name"];
Console.WriteLine(name +" : " + usage);
}
And for Linq lovers
对于 Linq 爱好者
ManagementObjectSearcher searcher = new ManagementObjectSearcher("select * from Win32_PerfFormattedData_PerfOS_Processor");
var cpuTimes = searcher.Get()
.Cast<ManagementObject>()
.Select(mo => new
{
Name = mo["Name"],
Usage = mo["PercentProcessorTime"]
}
)
.ToArray();
回答by jgstew
It seems like the info is also available in WMI here:
似乎信息也可以在 WMI 中找到：
select LoadPercentage from Win32_Processor
select LoadPercentage from Win32_Processor
"Load capacity of each processor, averaged to the last second. Processor loading refers to the total computing burden for each processor at one time."
“每个处理器的负载能力，平均到最后一秒。处理器负载是指每个处理器在一次的总计算负担。”
OR:
或者：
select LoadPercentage from CIM_Processor
select LoadPercentage from CIM_Processor
"Loading of the processor, averaged over the last minute, in a percentage."
“处理器的负载，在最后一分钟的平均值，以百分比表示。”
OR:
或者：
select PercentProcessorTime from Win32_PerfFormattedData_PerfOS_Processoralso seems to work.
select PercentProcessorTime from Win32_PerfFormattedData_PerfOS_Processor似乎也有效。
Note:these often return multiple results per CPU core and have to be summed to get the total CPU usage for the system as a whole, so look for that.
注意：这些通常会为每个 CPU 内核返回多个结果，并且必须求和才能获得整个系统的总 CPU 使用率，因此请寻找它。
This question and answer really has more to do with WMI since getting info from WMI with C# is really a different question and should be very similar for any WMI query in C#.
这个问题和答案确实与 WMI 有更多关系，因为从 WMI 使用 C# 获取信息确实是一个不同的问题，对于 C# 中的任何 WMI 查询应该非常相似。
