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Enhancement
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Resolution: Fixed
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P4
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9
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b89
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generic
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generic
Issue | Fix Version | Assignee | Priority | Status | Resolution | Resolved In Build |
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JDK-8142685 | emb-9 | Claes Redestad | P4 | Resolved | Fixed | team |
The per-thread performance counters for compiler threads have relatively little value in the presence of more fine-grained and precise compilation events and should be considered for removal. A quick survey indicates there is little or no usage of these counters:
sun.ci.compilerThread.#.compiles
sun.ci.compilerThread.#.method
sun.ci.compilerThread.#.time
sun.ci.compilerThread.#.type
Removing these counters would ensure that the number of perf counters which write to the PerfData memory buffer is invariant with JVM scale factors (#CPU, #threads etc)
sun.ci.compilerThread.#.compiles
sun.ci.compilerThread.#.method
sun.ci.compilerThread.#.time
sun.ci.compilerThread.#.type
Removing these counters would ensure that the number of perf counters which write to the PerfData memory buffer is invariant with JVM scale factors (#CPU, #threads etc)
- backported by
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JDK-8142685 Remove per-compiler performance counters
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- Resolved
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