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jvm profiling
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| Java Virtual Machine statistics monitoring tool (jstat -options for all the options) | |
| $ jstat -gcutil process_id 1000 | |
| S0 -> Survivors 0 | |
| S1 -> Survivors 1 | |
| E -> Eden | |
| O -> Old | |
| P -> Perm | |
| YGC -> Young GC | |
| YGCT -> Young GC time | |
| FGC -> Full GC | |
| FGCT -> Full GC time | |
| GCT -> Total GC time | |
| $ jcmd process_id GC.heap_dump ~/.heap_dump.hprof | |
| Analize dump on visualvm to check dominators |
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