Posted Updated  BF 8 minutes read (About 1229 words)

System Monitor by Powershell

Process Monitor

先上代码:

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$CurrentDir = Split-Path $MyInvocation.MyCommand.Path
$file = "$CurrentDir/Monitor.csv"
$ps_name = "java"
$show_sys_cpu_rate = $false
$show_sys_mem_rate = $false

$memory_sys_total = (Get-WmiObject -Class Win32_PhysicalMemory |measure capacity -sum).Sum  #(gwmi win32_computersystem).TotalPhysicalMemory
$cpu_cores = (Get-WmiObject Win32_ComputerSystem).NumberOfLogicalProcessors
# $memory_sys_total = (Get-Counter "\Memory\System Driver Total Bytes").CounterSamples | Sort-Object Path
# $memory_sys_total = $memory_sys_total[0].CookedValue
"time,CPU(%),Memory(%),CPU_$ps_name(%), Memory_$ps_name(%)" >> $file
while ($True) {
    $cpu_rate_pss = (Get-Counter "\process($ps_name*)\% Processor Time").CounterSamples | Sort-Object Path
    $cpu_rate_sys = (Get-Counter "\processor(_total)\% processor time").CounterSamples | Sort-Object Path
    $cpu_rate_sys = $cpu_rate_sys[0].CookedValue
    if($show_sys_cpu_rate -eq $false){
        $cpu_rate_sys = 0
    }

    $memory_pss   = (Get-Counter "\Process($ps_name*)\Working Set - Private").CounterSamples | Sort-Object Path

    if($show_sys_mem_rate){
        $memory_sys_available   = (Get-Counter "\Memory\Available Bytes").CounterSamples | Sort-Object Path
        $memory_sys_available   = $memory_sys_available[0].CookedValue
        $memory_sys             = $memory_sys_total - $memory_sys_available
    }else{
        $memory_sys = 0
    }

    $cpu_rate_pss_total = 0
    $memory_pss_total = 0
    $cpu_rate_pss.Count
    try {
        For ($i = 0; $i -lt $cpu_rate_pss.Count; $i++) {
            $cpu_rate_pss_total  = $cpu_rate_pss_total + $cpu_rate_pss[$i].CookedValue
            $memory_pss_total    = $memory_pss_total + $memory_pss[$i].CookedValue
        }
    }catch{
        Write-Output ""
    }

    $cpu_rate_sys           = "{0:F2}" -f $cpu_rate_sys
    $cpu_rate_pss_total     = "{0:F2}" -f $cpu_rate_pss_total / $cpu_cores

    $memory_rate_sys        = "{0:F2}" -f ( $memory_sys / $memory_sys_total * 100)
    $memory_rate_pss_total  = "{0:F2}" -f ( $memory_pss_total / $memory_sys_total * 100)

    $time = Get-Date -format "MM/dd/yyyy HH:mm:ss"

    Write-Output "Time=$time;CPU=$cpu_rate_sys;Mem=$memory_rate_sys;CPU($ps_name)=$cpu_rate_pss_total;Mem($ps_name)=$memory_rate_pss_total"
    "$time,$cpu_rate_sys,$memory_rate_sys,$cpu_rate_pss_total,$memory_rate_pss_total" >> $file

    sleep 1
}

之前也有写过监测系统CPU和内存的Powershell脚本和Python脚本，不过当时都只有监测系统的CPU和内存的占比变化，没有针对进程。

最近在做测试的时候，已经在脚本中加入了Python对进程的操作，不过因为和具体项目结合在一起，还没有时间把代码抽象出来。今天本来想着在之前Powershell脚本的基础上改一下，不过没想到踩了一些坑，主要还是不熟悉。尤其如果对C#比较了解的话，写起来会方便很多。Powershell可以直接调用.Net的许多对象和方法。

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