Windows: Resource Monitoring

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來自 Google 的課程

Operating Systems and You: Becoming a Power User

4018 個評分

Google

Operating Systems and You: Becoming a Power User

4018 個評分

課程 3（共 5 門，Specialization Google IT Support Professional Certificate）

In this course -- through a combination of video lectures, demonstrations, and hands-on practice -- you’ll learn about the main components of an operating system and how to perform critical tasks like managing software and users, and configuring hardware. We’ll wrap up with an example of how you might see this content show up in an interview setting. By the end of this course you’ll be able to: ● navigate the Windows and Linux filesystems using a graphical user interface and command line interpreter. ● set up users, groups, and permissions for account access. ● install, configure, and remove software on the Windows and Linux operating systems. ● configure disk partitions and filesystems. ● understand how system processes work and how to manage them. ● work with system logs and remote connection tools. ● utilize operating system knowledge to troubleshoot common issues in an IT Support Specialist role.

從本節課中

Process Management

In the fifth week of this course, we'll explore process management. As an IT Support Specialist, it is important to use system tools to read and understand process statuses of machines. We will cover ways to start and terminate a process in Windows and Linux. We will also apply troubleshooting tools to solve problems with processes and resources. By the end of this module, you will use Windows and Linux commands to do practical process maintenance.

Windows: Resource Monitoring4:23

Linux: Resource Monitoring3:40

與講師見面

Google

You've been doing a great job and we're almost done with this module.

Now that we spent all this time learning about processes,

like how to read them and how to manage them,

when are we ever going to use these newfound skills?

Well, pretty much all the time.

But an IT support role,

managing processes comes in handy the most when processes become a little unruly.

Our systems usually have some pretty good ways of monitoring

processes and telling us which processes might be having issues.

In Windows, what are the most common ways to quickly take a peek at how

the system resources are doing is by using the Resource Monitoring tool.

You can find it in a couple of places,

but we will launch it right from the start menu.

Once it opens, you'll see five tabs of information.

One is an overview of all the resources on the system.

Each other tab is dedicated to displaying

information about a particular resource on the system.

You'll also notice that Resource Monitor displays process information

too along with data about the resources that the process is consuming.

You can get this performance information in

a slightly less detailed presentation from process explorer.

Just like the process you are interested in,

right click and choose properties.

From there, pick the performance graph tab.

You can see quick visualizations of

the current CPU memory indicated by private bytes and disk activity indicated by I/O.

But how can we get this information from the command line? I am glad you asked.

There are several ways to get this information from the command line but we will focus on

a PowerShell centric one, our friend Get-Process.

We know that if we run Get-Process without any options or flags,

we get process information for

each running process on the system.

If you check out the column headings at the start of the output,

you'll see things like NPM(K) values in

this column represent the amount of non paged memory the process is using.

And the K stands for the unit, kilobytes.

You can see Microsoft's documentation for

a full write up of each column in the next supplemental reading.

This is useful but it is a lot of information.

It can be really helpful to filter down to just the data you are interested in.

Let's say you wanted to just display the top three processes using the MOS CPU,

you could write this command.

Get-Process| Sort CPU -descending

| Select -first 3 -property ID,

ProcessName and CPU.

And just like that,

we get the top three CPU hogs on the system.

This command might be a little hard to understand,

so let's go through it step by step.

First, we call the Get-Process Commandlet to

obtain all that process information from the operating system.

Then, we use a pipe to connect the output of that command to the sort command.

You might remember pipes from some Linux examples earlier.

We sort the output of Get-Process by

the CPU column descending to put the biggest numbers first.

Then, we pipe that information to the select command.

Using select, we pick the first three rows from

the output of sort and pick only the property ID,

name, and CPU amount to display.

Now that you've got some knowledge about both the command line and

graphical tools Windows provides for investigating resource usage,

let's have a look at Linux Resource Monitoring.

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