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IV13245: PERFSTAT EXTENSION RETURNS STALE NETWORK/INTERFACE METRICS. APPLIES TO AIX 7100-01

A fix is available

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You can track all active APARs for this component.

 

APAR status

  • Closed as program error.

Error description

  • nmon ( n ) and other tools uses perfstat_netinterface() to
    fetch network stats .
    
    For some interfaces ( ETHERCHANEL ) the values provided by the
    subroutine is stale ( not updated ) as the underlying kernel
    extension is providing stale values.
    
    The network stats shown by nmon is all zeros since nmon
    collects stats over a peroid of time ( which is not being
    updated) and calculates delta .
    

Local fix

Problem summary

  • nmon ( n ) and other tools uses perfstat to fetch network stats
    The network stats shown by nmon is all zeros since nmon
    collects stats over a peroid of time ( which is not being
    updated) and calculates delta
    

Problem conclusion

  • Make corrections to perfstat to get updated network stats
    

Temporary fix

Comments

APAR Information

  • APAR number

    IV13245

  • Reported component name

    AIX V7.1

  • Reported component ID

    5765H4000

  • Reported release

    710

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Submitted date

    2012-01-16

  • Closed date

    2012-01-16

  • Last modified date

    2013-02-26

  • APAR is sysrouted FROM one or more of the following:

    IV11918

  • APAR is sysrouted TO one or more of the following:

Fix information

  • Fixed component name

    AIX V7.1

  • Fixed component ID

    5765H4000

Applicable component levels

  • R710 PSY U843448

       UP12/05/11 I 1000

PTF to Fileset Mapping

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Document Information

Modified date:
26 February 2013