src/hotspot/share/jfr/periodic/jfrPeriodic.cpp

rev 52316 : 8185525: Add JFR event for DictionarySizes
Summary: Added TableStatistics event
Reviewed-by: egahlin, coleenp

*** 24,33 ****
--- 24,36 ----
  
  #include "precompiled.hpp"
  #include "jvm.h"
  #include "classfile/classLoaderStats.hpp"
  #include "classfile/javaClasses.hpp"
+ #include "classfile/stringTable.hpp"
+ #include "classfile/symbolTable.hpp"
+ #include "classfile/systemDictionary.hpp"
  #include "code/codeCache.hpp"
  #include "compiler/compileBroker.hpp"
  #include "gc/g1/g1HeapRegionEventSender.hpp"
  #include "gc/shared/gcConfiguration.hpp"
  #include "gc/shared/gcTrace.hpp"
*** 509,518 ****
--- 512,561 ----
  TRACE_REQUEST_FUNC(ClassLoaderStatistics) {
    JfrClassLoaderStatsVMOperation op;
    VMThread::execute(&op);
  }
  
+ template<typename EVENT>
+ static void emit_table_statistics(TableStatistics statistics) {
+   EVENT event;
+   event.set_bucketCount(statistics._number_of_buckets);
+   event.set_entryCount(statistics._number_of_entries);
+   event.set_totalFootprint(statistics._total_footprint);
+   event.set_bucketCountMaximum(statistics._maximum_bucket_size);
+   event.set_bucketCountAverage(statistics._average_bucket_size);
+   event.set_bucketCountVariance(statistics._variance_of_bucket_size);
+   event.set_bucketCountStandardDeviation(statistics._stddev_of_bucket_size);
+   event.set_insertionRate(statistics._add_rate);
+   event.set_removalRate(statistics._remove_rate);
+   event.commit();
+ }
+ 
+ TRACE_REQUEST_FUNC(SymbolTableStatistics) {
+   TableStatistics statistics = SymbolTable::the_table()->get_table_statistics();
+   emit_table_statistics<EventSymbolTableStatistics>(statistics);
+ }
+ 
+ TRACE_REQUEST_FUNC(StringTableStatistics) {
+   TableStatistics statistics = StringTable::the_table()->get_table_statistics();
+   emit_table_statistics<EventStringTableStatistics>(statistics);
+ }
+ 
+ TRACE_REQUEST_FUNC(PlaceholderTableStatistics) {
+   TableStatistics statistics = SystemDictionary::placeholders_statistics();
+   emit_table_statistics<EventPlaceholderTableStatistics>(statistics);
+ }
+ 
+ TRACE_REQUEST_FUNC(LoaderConstraintsTableStatistics) {
+   TableStatistics statistics = SystemDictionary::loader_constraints_statistics();
+   emit_table_statistics<EventLoaderConstraintsTableStatistics>(statistics);
+ }
+ 
+ TRACE_REQUEST_FUNC(ProtectionDomainCacheTableStatistics) {
+   TableStatistics statistics = SystemDictionary::protection_domain_cache_statistics();
+   emit_table_statistics<EventProtectionDomainCacheTableStatistics>(statistics);
+ }
+ 
  TRACE_REQUEST_FUNC(CompilerStatistics) {
    EventCompilerStatistics event;
    event.set_compileCount(CompileBroker::get_total_compile_count());
    event.set_bailoutCount(CompileBroker::get_total_bailout_count());
    event.set_invalidatedCount(CompileBroker::get_total_invalidated_count());