gistfile1.txt

# jmap -F -heap 20237
Attaching to process ID 20237, please wait...
Debugger attached successfully.
Server compiler detected.
JVM version is 25.77-b03

using thread-local object allocation.
Parallel GC with 10 thread(s)

Heap Configuration:
   MinHeapFreeRatio         = 0
   MaxHeapFreeRatio         = 100
   MaxHeapSize              = 23622320128 (22528.0MB)
   NewSize                  = 2863136768 (2730.5MB)
   MaxNewSize               = 7873757184 (7509.0MB)
   OldSize                  = 5726797824 (5461.5MB)
   NewRatio                 = 2
   SurvivorRatio            = 8
   MetaspaceSize            = 21807104 (20.796875MB)
   CompressedClassSpaceSize = 1073741824 (1024.0MB)
   MaxMetaspaceSize         = 17592186044415 MB
   G1HeapRegionSize         = 0 (0.0MB)

Heap Usage:
PS Young Generation
Eden Space:
   capacity = 7195328512 (6862.0MB)
   used     = 4533286392 (4323.2788009643555MB)
   free     = 2662042120 (2538.7211990356445MB)
   63.00318858881311% used
From Space:
   capacity = 329252864 (314.0MB)
   used     = 161127712 (153.66336059570312MB)
   free     = 168125152 (160.33663940429688MB)
   48.937375985892714% used
To Space:
   capacity = 335544320 (320.0MB)
   used     = 0 (0.0MB)
   free     = 335544320 (320.0MB)
   0.0% used
PS Old Generation
   capacity = 15748562944 (15019.0MB)
   used     = 13143313280 (12534.440307617188MB)
   free     = 2605249664 (2484.5596923828125MB)
   83.45722290177234% used

41298 interned Strings occupying 3775824 bytes.

# jstat -gcutil 20237 60000
  S0     S1     E      O      M     CCS    YGC     YGCT    FGC    FGCT     GCT
  0.00  48.94  76.06  83.46  88.17  81.14    215  414.034     6   35.338  449.372
  0.00  48.94  76.54  83.46  88.17  81.14    215  414.034     6   35.338  449.372
  0.00  48.94  78.47  83.46  88.17  81.14    215  414.034     6   35.338  449.372
  0.00  48.94  78.81  83.46  88.17  81.14    215  414.034     6   35.338  449.372
  0.00  48.94  79.11  83.46  88.17  81.14    215  414.034     6   35.338  449.372
  0.00  48.94  79.41  83.46  88.17  81.14    215  414.034     6   35.338  449.372
  0.00  48.94  79.63  83.46  88.17  81.14    215  414.034     6   35.338  449.372
  0.00  48.94  81.08  83.46  88.17  81.14    215  414.034     6   35.338  449.372
  0.00  48.94  84.96  83.46  88.17  81.14    215  414.034     6   35.338  449.372
  0.00  48.94  87.10  83.46  88.17  81.14    215  414.034     6   35.338  449.372
  0.00  48.94  88.84  83.46  88.17  81.14    215  414.034     6   35.338  449.372
  0.00  48.94  97.01  83.46  88.17  81.14    215  414.034     6   35.338  449.372
 39.15   0.00   3.94  84.37  88.29  81.23    216  416.190     6   35.338  451.528
 39.15   0.00   7.78  84.37  88.29  81.23    216  416.190     6   35.338  451.528
 39.15   0.00  18.93  84.37  88.29  81.23    216  416.190     6   35.338  451.528
 39.15   0.00  19.79  84.37  88.29  81.23    216  416.190     6   35.338  451.528
 39.15   0.00  20.98  84.37  88.29  81.23    216  416.190     6   35.338  451.528
 39.15   0.00  25.04  84.37  88.29  81.23    216  416.190     6   35.338  451.528
 39.15   0.00  26.10  84.37  88.29  81.23    216  416.190     6   35.338  451.528