Server Work Queues Object

The Server Work Queues performance object consists of counters that monitor the length of the queues and objects in the queues.

Queue Length

Queue Length is the current length of the server work queue for this CPU. A sustained queue length greater than four might indicate processor congestion. This is an instantaneous count, not an average over time.

Detail Level: Advanced
Counter Type: PERF_COUNTER_RAWCOUNT

Active Threads
Active Threads is the number of threads currently working on a request from the server client for this CPU. The system keeps this number as low as possible to minimize unnecessary context switching. This is an instantaneous count for the CPU, not an average over time.

Detail Level: Advanced
Counter Type: PERF_COUNTER_RAWCOUNT

Available Threads
Available Threads is the number of server threads on this CPU not currently working on requests from a client. The server dynamically adjusts the number of threads to maximize server performance.

Detail Level: Advanced
Counter Type: PERF_COUNTER_RAWCOUNT

Available Work Items
Every request from a client is represented in the server as a 'work item,' and the server maintains a pool of available work items per CPU to speed processing. This is the instantaneous number of available work items for this CPU. A sustained near-zero value indicates the need to increase the MinFreeWorkItems registry value for the Server service. This value will always be 0 in the Blocking Queue instance.

Detail Level: Advanced
Counter Type: PERF_COUNTER_RAWCOUNT

Borrowed Work Items
Every request from a client is represented in the server as a 'work item,' and the server maintains a pool of available work items per CPU to speed processing. When a CPU runs out of work items, it borrows a free work item from another CPU. An increasing value of this running counter might indicate the need to increase the 'MaxWorkItems' or 'MinFreeWorkItems' registry values for the Server service. This value will always be 0 in the Blocking Queue instance.

Detail Level: Advanced
Counter Type: PERF_COUNTER_RAWCOUNT

Work Item Shortages
Every request from a client is represented in the server as a 'work item,' and the server maintains a pool of available work items per CPU to speed processing. A sustained value greater than zero indicates the need to increase the 'MaxWorkItems' registry value for the Server service. This value will always be 0 in the Blocking Queue instance.

Detail Level: Advanced
Counter Type: PERF_COUNTER_RAWCOUNT

Current Clients
Current Clients is the instantaneous count of the clients being serviced by this CPU. The server actively balances the client load across all of the CPU's in the system. This value will always be 0 in the Blocking Queue instance.

Detail Level: Advanced
Counter Type: PERF_COUNTER_RAWCOUNT

Bytes Received/sec
The rate at which the Server is receiving bytes from the network clients on this CPU. This value is a measure of how busy the Server is.