APAR status
Closed as program error.
Error description
Flashcache thread URH-END-IO-Handler which is expected to remain idle when flashcache is not configured, consumes CPU sometimes. This can be observed by running performance monitoring tool.
Local fix
Problem summary
When Flashcache is not configured, URH-END-IO-Handler thread when receives some signal, it consumes CPU in spin.
Problem conclusion
Code fixed to avoid the CPU consumption
Temporary fix
Comments
APAR Information
APAR number
IJ14231
Reported component name
AIX V7.2
Reported component ID
5765CD200
Reported release
720
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Submitted date
2019-02-27
Closed date
2019-06-06
Last modified date
2019-07-16
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
Fix information
Fixed component name
AIX V7.2
Fixed component ID
5765CD200
Applicable component levels
[{"Business Unit":{"code":"BU058","label":"IBM Infrastructure w\/TPS"},"Product":{"code":"SSVEF8","label":"AIX 7.2 Enterprise Edition"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"720","Edition":"","Line of Business":{"code":"LOB08","label":"Cognitive Systems"}},{"Business Unit":{"code":"BU054","label":"Systems w\/TPS"},"Product":{"code":"SG11S","label":"AIX 7.2 HIPERS, APARs and Fixes"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"720","Edition":"","Line of Business":{"code":"","label":""}}]
Document Information
Modified date:
16 July 2019