February 18, 2008 at 8:05 pm
I monitor performance on thousands of infrastructure servers and my scope is increasing to even more application servers. My question is what are the top key perfmon objects and counters I should be capturing?
I am using this performance data for both under-utilized and over-utilized servers for consolidation/virtualization and on the other end of the scope pro-active fixes in our environments so I will also need to get the proper thresholds that would fall in the under-utilized vs. over-utilized spaces. oh yeah, in between I also have a slot I call optimum performance 🙂 any help would be greatly appreciated.
Kelley
February 18, 2008 at 8:31 pm
I would suggest monitoring the following counters.
Processor:% Processor Time
PhysicalDisk:Avg.Disk Queue Length
PhysicalDisk:Disk Read Bytes/sec and PhysicalDisk :Disk Write Bytes/sec
Pradeep Adiga
Blog: sqldbadiaries.com
Twitter: @pradeepadiga
February 19, 2008 at 4:31 am
I do monitor those reqular key counters but need to add the objects/counters specific to sql server 2005, what counters would I use to monitor utilization? what would tell me if a sql 2005 server is under/over utilized?
thanks much,
Kelley
February 19, 2008 at 4:37 am
You may pick the counters as per your requirement from the below URL
http://msdn2.microsoft.com/en-us/library/ms190382.aspx
Pradeep Adiga
Blog: sqldbadiaries.com
Twitter: @pradeepadiga
February 19, 2008 at 5:47 am
I've got a core, basic, set of counters that I suggest using here. They barely scratch the surface, but they ought to get you started.
"The credit belongs to the man who is actually in the arena, whose face is marred by dust and sweat and blood"
- Theodore Roosevelt
Author of:
SQL Server Execution Plans
SQL Server Query Performance Tuning
February 19, 2008 at 7:43 am
Kelly, some key counters and their significance...
processor queue length ( < 2 / processor )
disk queue length (<1000/spindle)
%disk time (obviously <100, the lower the better)
contect switches/sec (the lower the better)
Hope this helps,
Doug
February 20, 2008 at 9:01 am
This is a great help and a perfect start, thanks so much for your help 🙂
Kelley
July 28, 2008 at 12:46 am
Hi,
We have started monitoring our server's performance using PERFMON counter data.We have a doubt is by running this tool on the server(DB/APP server) of a site ,would result in any performance issues for the site/server?
Can anyone confirm us on the issues if any in just enabling the counters?
July 28, 2008 at 6:24 am
IT depends on the number and type of counters used but in my eperience I've never seen more thant a 1% or 2% increase in CPU.
July 28, 2008 at 6:26 am
Just be sure that you're capturing them to a file and not using the GUI. If this causes your server to go down, you were already in severe trouble and you need this information.
"The credit belongs to the man who is actually in the arena, whose face is marred by dust and sweat and blood"
- Theodore Roosevelt
Author of:
SQL Server Execution Plans
SQL Server Query Performance Tuning
December 11, 2008 at 8:43 am
The other thing to bear in mind is how often you are capturing the data. I've read guides where its recommended to change the default value of how big the interval is (in seconds) from 1 second to 1 minute, up to around 10 minutes per 'scan'.
Also for a list of all specific counters for SQL2005 use the Dynamic Management View: sys.dm_os_performance_counters
This will however use counters for each DB on the server in question (so you could end up with quite a few!)
June 18, 2012 at 4:47 am
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