Reference - default performance counters
Kentico EMS required
Features described on this page require the Kentico EMS license.
The following table lists the default counters that are pre-defined in the counters.xpc file and registered in Windows by default:
Counter name | Category | Description | Values written by |
Allocated memory in MB | Global | The size of memory allocated by the application in Megabytes. | Application |
Cache expired items/sec | Global | The number of expired cache items per second. | Application |
Cache removed items/sec | Global | The number of items removed from cache per second. | Application |
Cache underused items/sec | Global | The number of underused cache items per second. | Application |
Content page views/sec | Global and Sites | The number of content pages viewed per second. | Application |
E-mails in queue | Global and Sites | The number of e-mails in the E-mail queue. | Application or Windows service* |
Error e-mails in queue | Global and Sites | The number of e-mails in the E-mail queue whose sending failed. | Application or Windows service* |
Errors | Global | The number of errors in event log since last application restart. | Application |
File downloads/sec | Global and Sites | The number of files downloaded per second. | Application |
Non-page requests/sec | Global | The number of non-page requests per second. | Application |
On-line users – total | Global and Sites | The total number of on-line users. | Application |
On-line users – authenticated | Global and Sites | The number of authenticated on-line users. | Application |
On-line users – anonymous | Global and Sites | The number of anonymous on-line users. | Application |
Pages not found/sec | Global and Sites | The number of not found pages (404 error) per second. | Application |
Pending requests/sec | Global | The number of pending page requests per second. | Application |
Robots.txt views/sec | Global and Sites | The number of robots.txt page requests per second. Important: For values to be written to this counter, IIS must be configured to handle .txt extensions. See Custom and extensionless URLs. | Application |
Running SQL queries | Global | The number of running SQL queries. | Application |
Running threads | Global | The number of running threads. | Application |
Scheduled tasks running | Global | The number of running scheduled tasks. | Application |
Scheduled tasks in queue | Global | The number of scheduled tasks in the queue. | Application or Windows service* |
System page views/sec | Global | The number of system pages viewed per second. | Application |
Warnings | Global | The number of warnings in event log since the last application restart. | Application |
* The Windows service is used to write values to these counters only if it is installed and if the Use external service option is enabled in Settings -> System -> Health monitoring. | |||
You can also define custom counters to monitor other system values.