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VMware View 5 PCoIP Session Statistics (WMI)

VMware View 5.0 exposes Teradici’s PCoIP session statistics through the WMI interface. Before View 5.0 the only mechanism to identify bandwidth usage and allocation was trough the log files. The log files are still a good source and there are few good applications that will consolidate log files and demonstrate the broad PCoIP utilization and network conditions in your organization. Please refer to App for PCoIP Real-Time Monitoring across your Organisation.

 

The PCoIP Session statistics are available virtual desktops running VMware View agent 5.0 and can be retrieved from the host VM utilizing PerfMon.

The PCoIP statistics are grouped within the following name spaces:

  • PCoIP Session General Statistics
  • PCoIP Session Network Statistics
  • PCoIP Session Audio Statistics
  • PCoIP Session Imaging Statistics
  • PCoIP Session USB Statistics

After a PCoIP session is closed, all the statistics are reset to zero. If the WMI property SessionDurationSeconds is a non-zero value and if it stays the same, it means PCoIP server has been forcefully ended or crashed. If SessionDurationSeconds changes from  non-zero to zero value, it means PCoIP session has been closed.

The PCoIP Session Statistics are updated every second.

WMI Namespace: root\CIMV2

 

I have created a video to demonstrate the utilization of PerfMon to monitor PCoIP.

 

view5_pcoip_statistics from Andre Leibovici on Vimeo.

 

For automation of management task such as querying for management data, execution of a method from a WMI class, or receiving event notifications using WMI it possible to create scripts in VBScript, C#, and VB .NET using “WMI Code Creator” from Microsoft.

 

PCoIP Session General Statistics

WMI Class Name: Win32_PerfRawData_TeradiciPerf_PCoIPSessionGeneralStatistics

Statistic Name

Description

WMI Property Name

Session Duration Seconds

An incrementing number that represents the total number of seconds the PCoIP session has been open.

SessionDurationSeconds

Bytes Received

Total number of bytes that have been received since the PCoIP session started.

BytesReceived

Bytes Sent

Total number of bytes that have been transmitted since the PCoIP session started.

BytesSent

Packets Received

Total number of packets that have been received since the PCoIP session started. Note that not all packets are the same size.

PacketsReceived

Packets Sent

Total number of packets that have been transmitted since the PCoIP session started. Note that not all packets are the same size.

PacketsSent

RX Packets Lost

Total number of receive packets that have been lost since the PCoIP session started.

RXPacketsLost

TX Packets Lost

Total number of transmit packets that have been lost since the PCoIP session started.

TXPacketsLost

 

PCoIP Session Network Statistics

WMI Class Name: Win32_PerfRawData_TeradiciPerf_PCoIPSessionNetworkStatistics

Statistic Name

Description

WMI Property Name

Round Trip Latency ms

Round trip latency (in milliseconds) between server and client.

RoundTripLatencyms

RX BW kbit/sec

Overall bandwidth for incoming PCoIP packets averaged over the sampling period (in seconds).

To calculate bandwidth:

(BytesReceivedsample2 – BytesReceivedsample1) x 8 / 1024 / SamplePeriod

RX BW Peak kbit/sec

Peak bandwidth for incoming PCoIP packets within a one second sampling period.

RXBWPeakkbitPersec

RX Packet Loss %

Percentage of received packets lost during a sampling period.

To calculate packet loss:

?PacketReceived = PacketsReceivedsample2 – PacketsReceivedsample1

?RXPacketsLost = RXPacketsLostsample2 – RXPacketsLostsample1)

RXPacketLoss % = ?RXPacketsLost / (?RXPacketsLost + ?PacketReceived ) x 100

TX BW kbit/sec

Overall bandwidth for outgoing PCoIP packets averaged over the sampling period (in seconds).

To calculate bandwidth:

(BytesSentsample2 – BytesSentsample1) x 8 / 1024 / SamplePeriod

TX BW Active Limit kbit/sec

The current estimate of the available network bandwidth, updated every second.

TXBWActiveLimitkbitPersec

TX BW Limit kbit/sec

Transmit bandwidth limit for outgoing packets as defined by the minimum of: GPO setting on client and server, local network connection, and Zero Client firmware negotiated value based on encryption limits

TXBWLimitkbitPersec

TX Packet Loss %

Percentage of transmitted packets lost during a sampling period.

To calculate packet loss:

?PacketSent = PacketSentsample2 – PacketSentsample1

?TXPacketsLost = TXPacketsLostsample2 – TXPacketsLostsample1)

TXPacketLoss % = ?TXPacketsLost / ?PacketSent x 100

 

PCoIP Session Audio Statistics

WMI Class Name: Win32_PerfRawData_TeradiciPerf_PCoIPSessionAudioStatistics

Note: The following Audio session statistics are not applicable to USB audio.

Statistic Name

Description

WMI Property Name

Audio Bytes Received

Total number of audio bytes that have been received since the PCoIP session started.

AudioBytesReceived

Audio Bytes Sent

Total number of audio bytes that have been sent since the PCoIP session started.

AudioBytesSent

Audio RX BW kbit/sec

Bandwidth for ingoing audio packets averaged over the sampling period (in seconds).

To calculate bandwidth:

(AudioBytesReceivedsample2 – AudioBytesReceivedsample1) x 8 / 1024 / SamplePeriod

Audio TX BW kbit/sec

Bandwidth for outgoing audio packets averaged over the sampling period (in seconds).

To calculate bandwidth:

(AudioBytesSentsample2 – AudioBytesSentsample1) x 8 / 1024 / SamplePeriod

Audio TX BW Limit kbit/sec

Transmit bandwidth limit for outgoing audio packets as defined by the GPO setting.

AudioTXBWLimitkbitPersec

 

PCoIP Session Imaging Statistics

WMI Class Name: Win32_PerfRawData_TeradiciPerf_PCoIPSessionImagingStatistics

Statistic Name

Description

WMI Property Name

Imaging Bytes Received

Total number of imaging bytes that have been received since the PCoIP session started.

ImagingBytesReceived

Imaging Bytes Sent

Total number of imaging bytes that have been sent since the PCoIP session started.

ImagingBytesSent

Imaging RX BW kbit/sec

Bandwidth for incoming imaging packets averaged over the sampling period (in seconds).

To calculate bandwidth:

(ImagingBytesReceivedsample2 – ImagingBytesReceivedsample1) x 8 / 1024 / SamplePeriod

Imaging TX BW kbit/sec

Bandwidth for outgoing imaging packets averaged over the sampling period (in seconds).

To calculate bandwidth:

(ImagingBytesSentsample2 – ImagingBytesSentsample1) x 8 / 1024 / SamplePeriod

Imaging Encoded Frames/sec

The number of imaging frames which were encoded over a one second sampling period.

ImagingEncodedFramesPersec

Imaging Active Minimum Quality

The lowest encoded quality (0 to 100), updated every second. Not to be confused with the GPO setting.

ImagingActiveMinimumQuality

Imaging Decoder Capability kbit/sec

The current estimate of the decoder processing capability.

ImagingDecoderCapabilitykbitPersec

 

PCoIP Session USB Statistics

WMI Class Name: Win32_PerfRawData_TeradiciPerf_PCoIPSessionUSBStatistics

Note: The following USB session statistics are only available for the Zero Client to Soft Host configuration. These values will be 0 for the Thin (Soft) Client to Soft Host configuration.

Statistic Name

Description

WMI Property Name

USB Bytes Received

Total number of USB bytes that have been received since the PCoIP session started.

USBBytesReceived

USB Bytes Sent

Total number of USB bytes that have been sent since the PCoIP session started.

USBBytesSent

USB RX BW kbit/sec

Bandwidth for incoming USB packets averaged over the sampling period (in seconds).

To calculate bandwidth:

(USBBytesReceivedsample2 – USBBytesReceivedsample1) x 8 / 1024 / SamplePeriod

USB TX BW kbit/sec

Bandwidth for outgoing USB packets averaged over the sampling period (in seconds).

To calculate bandwidth:

(USBBytesSentsample2 – USBBytesSentsample1) x 8 / 1024 / SamplePeriod

8 comments

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  1. puscavnik

    nice article, but can you tell me how to enable this PCoIP Session Statistics. In video you just have it under Add Counters in Performance Monitor, but i haven’t 🙁
    I have View 5 on ESXi5.
    thanks in advance

  2. Andre Leibovici

    @puscavnik
    You should see all PCoIP Performance Counters without having to do anything else. I have seen this behaviour before. Please uninstall VMware View Agent, Reboot and reinstall the agent in your Parent VM.

    That should solve your issue.

    Andre

  3. puscavnik

    @Andre
    thank you very much, I spent 1 day figuring out where to enable this function, but only your advice helped.

    @Andre Leibovici

  4. Andre Leibovici

    @puscavnik
    I’m glad I was able to help. Thanks for the feedback.

    Andre

  5. Stephane Quevillon

    @Andre
    I am using the CIM Studio to search for the counters, they can be found on my 32bit Windows 7 View desktop but not in the 64-bit version of Windows 7. Do you know why that is?

  6. Andre Leibovici

    @Stephane Quevillon
    I am not sure why you see that. However, I can definitely tell you that the statistics are available for both platforms. Would this perhaps be a CIM studio issue with 64-bit Windows? Let me know should you find a solution.

    Andre

  7. Stephane Quevillon

    I have found out the following:

    When VM View registers on a 32-bit Operating System (Windows 7 or XP), any 32-bit application can query the PC over IP performance and configuration WMI directly. However, when VM View is installed on a 64-bit operating system, the WMI counters fail to properly register for 32-bit access – it only registers for 64-bit access. This is why CIM Studio (32-bit) was having challenges viewing the classes:
    · Windows 32-Bit: WMI counters are properly registered and return metrics from direct WMI queries
    · Windows 7 64-Bit: 32-bit WMI queries fail because the WMI counters are not properly registered by VM Viewer (bug)
    · Perfmon: Counters exist for both 32 and 64-bit installations

  8. Andre Leibovici

    @Stephane Quevillon
    I spoke to Teradici about this issue. This is a known issue with their library. Currently, 32 bit applications that access PCoIP WMI counters on a 64 bit system will not work. I would suggest you to try a 32bit of CIM Studio to see of that works.

    Andre

  1. Getting PCOIP stats via WMI using PowerShell : ben.neise.co.uk

    […] of the slides that PCOIP session statistics were available via WMI. After a quick Google, I found MyVirtualCloud’s page, which details the class, and property […]

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