APAR status
Closed as program error.
Error description
Error Message: N/A . Stack Trace: N/A .
Local fix
The issue can be circumvented by using -Xjit:disableGuardedCountingRecompilations -Xaot:disableGuardedCountingRecompilations
Problem summary
When zWAS is using multiple servant regions the JIT mechanism that aggressively upgrades method compilations is triggered too early leading to extra CPU cycles being consumed during startup.
Problem conclusion
This defect will be fixed in: 6.0.1 GA FP1 . The JIT was updated to disable the 'Guarded Counting Recompilations' mechanism. Another upgrading mechanism that is less aggressive will be in effect. . To obtain the fix: Install build 20110323 or later
Temporary fix
Comments
APAR Information
APAR number
IV01844
Reported component name
JIT
Reported component ID
620700124
Reported release
260
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt
Submitted date
2011-06-15
Closed date
2011-06-15
Last modified date
2011-06-15
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
JIT
Fixed component ID
620700124
Applicable component levels
R260 PSY
UP
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