We have an Umbraco site running on Umbraco 4.11.9 and we are having an issue in that as soon as the site receives any sort of higher load then the W3WPC process maxes out at 100% and the site then becomes unresponsive and only doing an IISRESET sorts the problem out.
I am using a website called Blitz to perform load testing and have this linked to New Relic for analysing server statistics. We have tried copies of the site on two completely separate servers and the issue is the same as soon as we try to put any load on it.
I cannot see anything in the code that would be causing any sort of issues and have implemented Macro and Page caching but the problem still happens.
Has anyone experienced any similar issues before and/or does anyone have any ideas what sorts of things I should be looking for or any methods I should put in place to try and find the source of the issues. I have enabled the trace but there are no obvious Macros taking time to load.
For your reference the site has been tested on Windows Server 2008 with both SQL Server 2008 R2 Express and SQL Server 2008 R2 Web editions.
UPDATE: I have just tried installing a starter kit version of Umbraco 4.11.9 using one of the pre-defined skins and am experiencing a similar issue, the pattern I am using in Blitz is 1-500 users across 60 seconds. Any ideas?
Speed Issues 100% CPU Usage
We have an Umbraco site running on Umbraco 4.11.9 and we are having an issue in that as soon as the site receives any sort of higher load then the W3WPC process maxes out at 100% and the site then becomes unresponsive and only doing an IISRESET sorts the problem out.
I am using a website called Blitz to perform load testing and have this linked to New Relic for analysing server statistics. We have tried copies of the site on two completely separate servers and the issue is the same as soon as we try to put any load on it.
I cannot see anything in the code that would be causing any sort of issues and have implemented Macro and Page caching but the problem still happens.
Has anyone experienced any similar issues before and/or does anyone have any ideas what sorts of things I should be looking for or any methods I should put in place to try and find the source of the issues. I have enabled the trace but there are no obvious Macros taking time to load.
For your reference the site has been tested on Windows Server 2008 with both SQL Server 2008 R2 Express and SQL Server 2008 R2 Web editions.
UPDATE: I have just tried installing a starter kit version of Umbraco 4.11.9 using one of the pre-defined skins and am experiencing a similar issue, the pattern I am using in Blitz is 1-500 users across 60 seconds. Any ideas?
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