PERFMON stops recording after 1 minute

As a performance tester, I’m used to collecting stats about Windows systems perrformance. I’ve done this using Windows PERFMON as well as using performance test tools such as LoadRunner and Facilita Forecast to gather performance related statistics from systems undergoing tests.

I recently did some performance testing for a client using Visual Studio and was gathering stats for later analysis. I used the Windows Performance Monitor snap-in to create my data collector sets as shown below.

Perfmon screenshot

By following the default options I found that my PERFMON counters were only gathered for one minute before stopping. I continually restarted my new data collector sets only to see them stop “as soon as my back was turned”. I check the account permissions for the running service, local security policies and event viewer logs but couldn’t find the problem.

When I was at the stage of tearing out my (rapidly thinning) hair, I came across this setting….

               By default, all windows performance counter data collector sets stop after 1 minute.

To alter this behaviour, “Right-click” on the properties for the new Data Collector Set.Perfmon Screenshot

Select the “Stop Condition” tab and uncheck the “Overall duration” checkbox.
By default this is set to 1 minute as shown below.

PERFMON screenshot

My recent research on cloud performance

 

Hi everyone,
I’ve been working on some research into the relative performance of various cloud offerings over recent weeks and I thought that it might be interesting to share my findings here. Last week my company published a whitepaper based on the research that I carried out over recent weeks comparing the relative performance of MS Azure, AWS and VMWare from a local IaaS provider. In each case we used the same two-tier application with the same test data and ran performance tests to see how each platform stood up to the load.
Surprisingly we ended up with results that showed that cloud could be both faster…and slower than physical hardware which seems to have caused some interest in the UK IT press.
http://www.businesscloudnews.com/infrastructure-as-a-service-/487-speed-of-cloud-no-issue-says-uk-specialists.html
http://forcearchitects.deliveredinnovation.com/2011/07/29/cloudup-7-29-2011/
http://www.v3.co.uk/v3-uk/news/2097905/cloud-beats-physical-infrastructure-configuration
http://www.thedatachain.com/news/2011/7/cloud_is_just_as_fast_as_conventional_hosting_environments
http://www.retailtechnology.co.uk/news/cloud-fast-and-more-reliable-retailers
http://www.microscope.co.uk/cloud-is-as-fast-as-physical-servers-report-claims/
If you’d like to see the whitepaper, you can get a copy from this URL.
http://intechnica.co.uk/Events/How-Fast-Is-The-Cloud
I’d be interested in any feedback that the members of this group might have on the research.
All the best
Richard

I’ve been working on some research into the relative performance of various cloud offerings over recent weeks and I thought that it might be interesting to share my findings here. Last week my company published a whitepaper based on the research that I carried out over recent weeks comparing the relative performance of MS Azure, AWS and VMWare from a local IaaS provider. In each case we used the same two-tier application with the same test data and ran performance tests to see how each platform stood up to the load.

 

The test application was nopCommerce which is a two-tier .NET application which uses a SQL back-end,

Surprisingly we ended up with results that showed that cloud could be both faster…and slower than physical hardware which seems to have caused some interest in the UK IT press.

Business Cloud News “Speed of cloud no issue, say UK specialists”

Force Architests “Cloudup 29th July 2011”

v3.co.uk “Cloud beats physical infrastructure if configuration is right

The data chain “Cloud is just as fast as conventional hosting environments”

Retail Technology “Cloud: fast and more reliable for retailers?”

Microscope “Cloud is as fast as physical servers report claims

 

If you’d like to see the whitepaper, you can get a copy from Intechnica.

I’d be interested in any feedback that any readers of these articles might have on the research.