APAR status
Closed as program error.
Error description
Error Message: We observed a 5-6% performance degradation on SPECjbb2005 under -Xaggressive on system Z. . Stack Trace: N/A . N/A
Local fix
N/A
Problem summary
this is caused by the new BigDecimal class in aggressive.jar which gets loaded under -Xaggressive. Hardware profile shows increased cache miss and GC activities and this can be explained by the long living cached string objects introduced in this BigDecimal class.
Problem conclusion
This defect will be fixed in: 7.0.0 SR3 . Remove BigDecimal from aggressive.jar
Temporary fix
N/A
Comments
APAR Information
APAR number
IV29914
Reported component name
JAVA CLASS LIBS
Reported component ID
620700130
Reported release
700
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt
Submitted date
2012-10-10
Closed date
2012-10-10
Last modified date
2012-10-10
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
JAVA CLASS LIBS
Fixed component ID
620700130
Applicable component levels
R700 PSY
UP
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Document Information
Modified date:
21 February 2022