Detecting the UpTime of Web Server

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Introduction

Occasionally, we would be in need to find how long our web server has been running and to find out whether the web server has been restarted or not, if it had experienced prolonged slowness for an extended period of time, say a couple of hours etc. In most of the hosting cases, we normally do not get a full console access to the web server and we might not be able to run the uptime.exe script that is normally available to check the uptime of a Windows system. Recently we experienced this issue of Ping timing out, SMTP not responding with our domain for a while and we suspected whether the server is going for a restart or not.

Peek Into System Environment Variables and Counters

After a brief search into MSDN, a small code trick did the job of finding how long the web server had been running. Moreover, this research also revealed one more way of getting the name of the machine from environment variables, besides the usual way.

Server.MachineName

The Code

The actual code that does this trick is:

PerformanceCounter pc = new PerformanceCounter("System",
    "System Up Time");

//Normally starts with zero. do Next Value always.

pc.NextValue(); 
TimeSpan ts = TimeSpan.FromSeconds(pc.NextValue());
    
Response.Write("This system " + Environment.MachineName + 
    " has been up for " + ts.Days + " days " + ts.Hours + 
    " hours, " + ts.Minutes + " and " + ts.Seconds + 
    " seconds.");

I hope this piece of code would really be useful as a ready-reckoner to find out how long the web server has been running.