On Windows Server, how does one view the number of concurrent iis connections?

What is the number of concurrent IIS connections

The number of iisconcurrent connections is the first request to the server for xxx.html, and then requests CSS, JS, and images on the webpage. Each request is counted as a number of IIS concurrencies. Therefore, IIS is theoretically divided into several program cases.

There are several situations: (taking 50 persons online in m space as an example)
The user downloads your files at a single point and is disconnected normally after completion. These connections are calculated in an instant. That is to say, your 50-person website can be instantly downloaded at 50 points at the same time; when a user opens your page, even if the page does not send any request to the server, it will be regarded as online within 15 minutes after the user opens the page, that is to say, the website of 50 users can open 50 pages for different users within 15 minutes.
In the case of B above, the user continues to open other pages of the same website, so the number of online users is calculated according to the 15 minutes after the last click (send request) of the user, in this 15-minute period, no matter how users click (including opening a new window), they are still online.
When an Iframe exists in your page, each frame is twice online! This means that the user requests multiple pages to the server at the same time.
When the user opens the page and closes the browser normally, the number of online users is cleared immediately.
Then you can learn about the number of online users in the forum.
Online forums only count the number of active users within a certain period of time.
You can set the time here (to delete non-active users). The default value of this parameter is 40 minutes.
According to the above description, the concepts of online and IIS connections in the forum are obviously different.
For example, if the 403.9 error occurs on your website's 20 IIS, the system prompts that there are too many IIS connections. At this time, your forum displays only 10 online users (assuming that the online time is set to 20 minutes ), the correct explanation should be:
There are 20 connections to your website, of which 10 are normal users.

How to view the number of concurrent iis connections

 

Method:

Click Start> run, enter perfmon. msc in the dialog box, and press enter.

 

 

 

Open the system monitor, right-click in the right chart area, and click "add counter"

 

 

 

In the "add counter" window, select "web Service" for "performance object", select "Current Connection" for "select counter from list ", select an instance from the list, select the site for statistics, and click add.

 

 

 

After you click "add" to close the "add counter" setting box, you can see the number of connections to the website. The curve is yellow.

 

 

 

If it is not obvious, you can delete other counters, right-click in the chart area, and select "attribute"

 

 

 

Delete all counters except the website

In this way, only one curve is displayed in the "system monitor" chart area, which is the line chart of the website.

 

 

 

Of course, when the number of concurrent connections is set to "unrestricted", The monitored value is the most accurate.