# Performance Counter metrics
<a name="application-insights-performance-counter"></a>

Performance Counter metrics are recommended for instances only when the corresponding Performance Counter sets are installed on the Windows instances.


| Performance Counter metric name | Performance Counter set name | 
| --- | --- | 
| .NET CLR Exceptions \$1 of Exceps Thrown | .NET CLR Exceptions | 
| .NET CLR Exceptions \$1 of Exceps Thrown/Sec  | .NET CLR Exceptions | 
| .NET CLR Exceptions \$1 of Filters/Sec  | .NET CLR Exceptions | 
| .NET CLR Exceptions \$1 of Finallys/Sec  | .NET CLR Exceptions | 
| .NET CLR Exceptions Throw to Catch Depth/Sec  | .NET CLR Exceptions | 
| .NET CLR Interop \$1 of CCWs  | .NET CLR Interop  | 
| .NET CLR Interop \$1 of Stubs  | .NET CLR Interop  | 
| .NET CLR Interop \$1 of TLB exports/Sec  | .NET CLR Interop  | 
| .NET CLR Interop \$1 of TLB imports/Sec  | .NET CLR Interop  | 
| .NET CLR Interop \$1 of Marshaling  | .NET CLR Interop  | 
| .NET CLR Jit % Time in Jit  | .NET CLR Jit  | 
| .NET CLR Jit Standard Jit Failures  | .NET CLR Jit  | 
| .NET CLR Loading % Time Loading  | .NET CLR Loading  | 
| .NET CLR Loading Rate of Load Failures  | .NET CLR Loading  | 
| .NET CLR LocksAndThreads Contention Rate/Sec  | .NET CLR LocksAndThreads  | 
| .NET CLR LocksAndThreads Queue Length/Sec  | .NET CLR LocksAndThreads  | 
| .NET CLR Memory \$1 Total Committed Bytes  | .NET CLR Memory | 
| .NET CLR Memory % Time in GC | .NET CLR Memory | 
| .NET CLR Networking 4.0.0.0 HttpWebRequest Average Queue Time  | .NET CLR Networking 4.0.0.0  | 
| .NET CLR Networking 4.0.0.0 HttpWebRequests Aborted/Sec  | .NET CLR Networking 4.0.0.0  | 
| .NET CLR Networking 4.0.0.0 HttpWebRequests Failed/Sec  | .NET CLR Networking 4.0.0.0  | 
| .NET CLR Networking 4.0.0.0 HttpWebRequests Queued/Sec  | .NET CLR Networking 4.0.0.0  | 
| APP\$1POOL\$1WAS Total Worker Process Ping Failures | APP\$1POOL\$1WAS | 
| ASP.NET Application Restarts  | ASP.NET  | 
| ASP.NET Requests Rejected | ASP.NET | 
| ASP.NET Worker Process Restarts | ASP.NET | 
| ASP.NET Applications Cache API trims | ASP.NET Applications | 
| ASP.NET Applications % Managed Processor Time (estimated) | ASP.NET Applications | 
| ASP.NET Applications Errors Total/Sec | ASP.NET Applications | 
|  ASP.NET Applications Errors Unhandled During Execution/Sec  |  ASP.NET Applications  | 
|  ASP.NET Applications Requests in Application Queue  |  ASP.NET Applications  | 
|  ASP.NET Applications Requests/Sec  |  ASP.NET Applications  | 
| ASP.NET Request Wait Time  | ASP.NET  | 
| ASP.NET Requests Queued  | ASP.NET  | 
| Database ==> Instances Database Cache % Hit | Database ==> Instances | 
| Database ==> Instances I/O Database Reads Average Latency | Database ==> Instances | 
| Database ==> Instances I/O Database Reads/sec | Database ==> Instances | 
| Database ==> Instances I/O Log Writes Average Latency | Database ==> Instances | 
| DirectoryServices DRA Pending Replication Operations | DirectoryServices | 
| DirectoryServices DRA Pending Replication Synchronizations | DirectoryServices | 
| DirectoryServices LDAP Bind Time | DirectoryServices | 
| DNS Recursive Queries/sec | DNS | 
| DNS Recursive Query Failure/sec | DNS | 
| DNS TCP Query Received/sec | DNS | 
| DNS Total Query Received/sec | DNS | 
| DNS Total Response Sent/sec | DNS | 
| DNS UDP Query Received/sec | DNS | 
| HTTP Service Request Queues CurrentQueueSize  | HTTP Service Request Queues  | 
|  LogicalDisk % Free Space  |  LogicalDisk  | 
| LogicalDisk Avg. Disk sec/Write | LogicalDisk | 
| LogicalDisk Avg. Disk sec/Read | LogicalDisk | 
| LogicalDisk Avg. Disk Queue Length | LogicalDisk | 
|  Memory % Committed Bytes In Use  | Memory | 
|  Memory Available Mbytes  |  Memory  | 
| Memory Pages/Sec  |  Memory  | 
| Memory Long-Term Average Standby Cache Lifetime (s) | Memory | 
|  Network Interface Bytes Total/Sec  | Network Interface | 
| Network Interface Bytes Received/sec | Network Interface | 
| Network Interface Bytes Sent/sec | Network Interface | 
| Network Interface Current Bandwidth | Network Interface | 
|  Paging File % Usage  |  Paging File  | 
| PhysicalDisk % Disk Time | PhysicalDisk | 
| PhysicalDisk Avg. Disk Queue Length | PhysicalDisk | 
| PhysicalDisk Avg. Disk Sec/Read | PhysicalDisk | 
| PhysicalDisk Avg. Disk Sec/Write | PhysicalDisk | 
| PhysicalDisk Disk Read Bytes/Sec | PhysicalDisk | 
| PhysicalDisk Disk Reads/Sec | PhysicalDisk | 
| PhysicalDisk Disk Write Bytes/Sec | PhysicalDisk | 
| PhysicalDisk Disk Writes/Sec | PhysicalDisk | 
|  Processor % Idle Time  | Processor | 
| Processor % Interrupt Time |  Processor  | 
| Processor % Processor Time |  Processor  | 
| Processor % User Time |  Processor  | 
| SharePoint Disk-Based Cache Blob Cache fill ratio  | SharePoint Disk-Based Cache  | 
| SharePoint Disk-Based Cache Blob cache flushes / second  | SharePoint Disk-Based Cache  | 
| SharePoint Disk-Based Cache Blob cache hit ratio  | SharePoint Disk-Based Cache  | 
| SharePoint Disk-Based Cache Total number of cache compactions | SharePoint Disk-Based Cache  | 
| SharePoint Foundation Executing Time/Page Request | SharePoint Foundation | 
| SharePoint Publishing Cache Publishing cache flushes / second | SharePoint Publishing Cache | 
| Security System-Wide Statistics Kerberos Authentications | Security System-Wide Statistics | 
| Security System-Wide Statistics NTLM Authentications | Security System-Wide Statistics | 
| SQLServer:Access Methods Forwarded Records/Sec |  SQLServer:Access Methods  | 
| SQLServer:Access Methods Full Scans/Sec |  SQLServer:Access Methods  | 
| SQLServer:Access Methods Page Splits/Sec |  SQLServer:Access Methods  | 
| SQLServer:Buffer Manager Buffer cache hit Ratio |  SQLServer:Buffer Manager  | 
| SQLServer:Buffer Manager Page life Expectancy |  SQLServer:Buffer Manager  | 
| SQLServer:Database Replica File Bytes Received/sec | SQLServer:Database Replica | 
| SQLServer:Database Replica Log Bytes Received/sec | SQLServer:Database Replica | 
| SQLServer:Database Replica Log remaining for undo | SQLServer:Database Replica | 
| SQLServer:Database Replica Log Send Queue | SQLServer:Database Replica | 
| SQLServer:Database Replica Mirrored Write Transaction/sec | SQLServer:Database Replica | 
| SQLServer:Database Replica Recovery Queue | SQLServer:Database Replica | 
| SQLServer:Database Replica Redo Bytes Remaining | SQLServer:Database Replica | 
| SQLServer:Database Replica Redone Bytes/sec | SQLServer:Database Replica | 
| SQLServer:Database Replica Total Log requiring undo | SQLServer:Database Replica | 
| SQLServer:Database Replica Transaction Delay | SQLServer:Database Replica | 
| SQLServer:General Statistics Processes Blocked |  SQLServer:General Statistics  | 
| SQLServer:General Statistics User Connections | SQLServer:General Statistics | 
| SQLServer:Latches Average Latch Wait Time (ms)  | SQLServer:Latches  | 
| SQLServer:Locks Average Wait Time (ms)  | SQLServer:Locks  | 
| SQLServer:Locks Lock Timeouts/Sec  | SQLServer:Locks  | 
| SQLServer:Locks Lock Waits/Sec  | SQLServer:Locks  | 
| SQLServer:Locks Number of Deadlocks/Sec  | SQLServer:Locks  | 
| SQLServer:Memory Manager Memory Grants Pending  | SQLServer:Memory Manager  | 
| SQLServer:SQL Statistics Batch Requests/Sec | SQLServer:SQL Statistics | 
| SQLServer:SQL Statistics SQL Compilations/Sec | SQLServer:SQL Statistics | 
| SQLServer:SQL Statistics SQL Re-Compilations/Sec |  SQLServer:SQL Statistics  | 
| System Processor Queue Length |  System  | 
| TCPv4 Connections Established | TCPv4 | 
| TCPv6 Connections Established | TCPv6 | 
| W3SVC\$1W3WP File Cache Flushes  | W3SVC\$1W3WP  | 
| W3SVC\$1W3WP File Cache Misses  | W3SVC\$1W3WP  | 
| W3SVC\$1W3WP Requests/Sec  | W3SVC\$1W3WP  | 
| W3SVC\$1W3WP URI Cache Flushes  | W3SVC\$1W3WP  | 
| W3SVC\$1W3WP URI Cache Misses  | W3SVC\$1W3WP  | 
| Web Service Bytes Received/Sec |  Web Service  | 
| Web Service Bytes Sent/Sec |  Web Service  | 
|  Web Service Connection Attempts/Sec   |  Web Service  | 
| Web Service Current Connections  |  Web Service  | 
| Web Service Get Requests/Sec  |  Web Service  | 
| Web Service Post Requests/Sec  |  Web Service  |