Monitoring PCoIP Session Statistics in Windows

The following table summarizes some of the key statistics, which can be monitored using Perfmon. For more information about all the statistics, see the PCoIP Software Session Statistics WMI Interface Specification.


Statistic Name
Description
Imaging Flip Frames/sec The number of imaging frames captured (flipped) by the PCoIP Server from the device driver over a one-second sampling period. Note that this rate may be less than the rate the application is updating frames.
Imaging Changed Frames/sec The number of captured (flipped) imaging frames that were changed over a one-second sampling period. Note that applications sometimes update frames with content identical to the previous frame causing the 'changed' frame rate to be less than the 'flip' frame rate.
Imaging Encoded Frames/sec The number of imaging frames that were encoded and sent to the client over a one-second sampling period.
Transmit (TX) Bandwith (BW) Overall bandwidth for outgoing PCoIP packets averaged over the sampling period (in seconds).
TX BW Active Limit kbit/sec The current estimate of the available network bandwidth, updated every second.
TX BW Limit kbit/sec Transmit bandwidth limit for outgoing packets as defined by the minimum of Group Policy (GPO) setting on client and server, local network connection, and zero client firmware negotiated value based on encryption limits.
Imaging Decoder Capability kbit/sec The current estimate of the decoder processing capability. A value of 0 indicates 'unlimited'. Upgrade the client if the number is too low.
RX Packet Loss % Percentage of received packets lost during a sampling period. If possible, keep the percentage below 0.1%. If the loss is too high, set the pcoip.device_bandwidth_floor registry key.
TX Packet Loss % Percentage of transmitted packets lost during a sampling period. If possible, keep the percentage below 0.1%. If the loss is too high, set the pcoip.device_bandwidth_floor registry key.
Round trip Latency Round trip latency (in milliseconds) between the server and client. Round trip latency is a measure of current network latency, not interactive latency (which will be higher). Spikes usually indicate network buffering somewhere in the path.