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IV56023: NETWORK PERFORMANCE DEGRADED WHEN SACK IS ENABLED APPLIES TO AIX 6100-09

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

  • Network performance is degraded when SACK is enabled.
    With default memtrace levels, component trace logs once
    for
    every single packet sent out via TCP.
    

Local fix

  • Turn off memtrace level for netinet.tcp
    

Problem summary

  • Due to unecessary tracing tcp performance is degraded.
    

Problem conclusion

  • Restrict tracing only in case of detailed tracing is enabled
    for debugging
    

Temporary fix

Comments

  • 6100-07 - use AIX APAR IV55000
    6100-08 - use AIX APAR IV52242
    6100-09 - use AIX APAR IV56023
    6100-09 - use AIX APAR IV56023
    6100-09 - use AIX APAR IV56023
    7100-01 - use AIX APAR IV57704
    7100-02 - use AIX APAR IV57259
    7100-03 - use AIX APAR IV55276
    7100-04 - use AIX APAR IV56088
    

APAR Information

  • APAR number

    IV56023

  • Reported component name

    AIX 610 STD EDI

  • Reported component ID

    5765G6200

  • Reported release

    610

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Submitted date

    2014-02-27

  • Closed date

    2014-02-27

  • Last modified date

    2016-05-10

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

    IV52242

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

Fix information

  • Fixed component name

    AIX 610 STD EDI

  • Fixed component ID

    5765G6200

Applicable component levels

  • R610 PSY U861284

       UP14/10/28 I 1000

PTF to Fileset Mapping



Document information

More support for: AIX Standard Edition

Software version: 610

Operating system(s): AIX

Reference #: IV56023

Modified date: 10 May 2016