Question : How to check and diagnose for the root cause for low performance of the windows OS machines

I would to know what are the parameters has to check to know the current load on the server. So that I can add extra hardware resources on the machine based on the root cause . request you please detail the answer with steps/ respective answer.

Answer : How to check and diagnose for the root cause for low performance of the windows OS machines

There are many possibilities for performance problems. The main issues are CPU Load or disc load. Where to look first would depend on what the system is used for. if a server is used as a file server for a company network i would check Disk I/O first and monitor CPU load and network I/O, too.

Database server have usually high CPU loads.

If your server lacks memory and has to page a lot you can see that the memory usage is beyond the physical memory, in this case best is to upgrade memory.

For a very quick peek you can just open the task manager and watch the CPU load for a while on the server. If the system idle process gets below 50 % too often you have high CPU usage. In task manager you can add additional colums, you should add the disc I/O (read write) columns too and watch which processes access drives a lot. The networking tab gives you a good idea of how much your NICs are used.

if you want more you can use the microsoft performance monitor, so you can log performance over a longer time period. The performance monitor wizard helps a lot, you should download it if you plan using the performance monitor and dont have much experience with it.

http://www.microsoft.com/downloads/details.aspx?familyid=31fccd98-c3a1-4644-9622-faa046d69214&displaylang=en
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