After removing per-compiler perf counters in JDK-8134607 we now use around 15Kb of perf data, independent of HW size. This makes it reasonable to revert the increase of PerfDataMemorySize in JDK-8132876
            
- relates to
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                    JDK-8132876 Increase PerfDataMemorySize to 64K -           
- Resolved
 
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