Hello AppFirsters,

We’d like to wish you a happy belated Valentine’s Day and share the new features and fixes we made this week! Here’s the rundown with descriptions below:

Updates to both Linux and Windows collectors, updates to our Alerting System, Stolen Time Measurements, and two limited beta features.

• Linux Collector Version 55 available now! We made significant improvements in the thread data collection algorithm so make sure you update your collector.
• Windows Collector Version 40 available now! We made a fix for an AppAccess Service crash bug, a fix for losing shared memory thread space by doubling adding threads, and a fix to NOT install into system32 and explorer.exe by default.
• Updates to our Alerting System. Previously, high response time alerts for tenants with many collectors would cause the responder to crash and alerting to slow down. Alerting would ask for data for all the tenant’s collectors, instead of specific data it needed. So we modified the way alerting does the root cause algorithm for high response time alerts so it only asks for what it needs.
• Stolen Time Measurements. You can view the percentage of Stolen Time in the Server widget under System Resources. About Stolen Time:

Essentially, the steal time cycle counts the amount of time that your VM is ready to run but could not run due to other VM’s competing for the CPU. This is a particularly relevant statistic to think about when you are using a cloud service provider. With cloud service providers you don’t control the hypervisor (as an enterprise customer would in a traditional datacenter). As a result, you don’t know how much the hypervisor is oversubscribed nor do you have insight or control into the amount of resources that other VM’s are taking from your compute requirements.

- http://blog.sciencelogic.com/netflix-steals-time-in-the-cloud-and-from-users/03/2011