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May 1st, 2012 | syntax:
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Interpreting jstat output after tuning JVM heap size
Timestamp S0 S1 E O P YGC YGCT FGC FGCT GCT
66150.4 0.00 51.09 56.95 90.33 54.85 6291 58.922 7 22.826 81.748
NGCMN NGCMX NGC S0C S1C EC OGCMN OGCMX OGC OC PGCMN PGCMX PGC PC YGC FGC
700416.0 700416.0 86016.0 1408.0 1408.0 39104.0 1398784.0 1398784.0 1398784.0 1398784.0 16384.0 65536.0 38912.0 38912.0 6338 7
NGCMN NGCMX NGC S0C S1C EC OGCMN OGCMX OGC OC PGCMN PGCMX PGC PC YGC FGC
700416.0 700416.0 86016.0 1472.0 1472.0 39104.0 1398784.0 1398784.0 1398784.0 1398784.0 16384.0 65536.0 38912.0 38912.0 6380 7
700416.0 700416.0 106496.0 1792.0 1856.0 97024.0 1398784.0 1398784.0 1398784.0 1398784.0 16384.0 65536.0 38912.0 38912.0 6433 7
700416.0 700416.0 106496.0 1792.0 1792.0 96064.0 1398784.0 1398784.0 1398784.0 1398784.0 16384.0 65536.0 38912.0 38912.0 6436 7
$ jstat -gcnew 20167
S0C S1C S0U S1U TT MTT DSS EC EU YGC YGCT
1536.0 1600.0 1300.3 0.0 13 15 1600.0 82880.0 30892.6 6482 60.540
$ jstat -gcnewcapacity 20167
NGCMN NGCMX NGC S0CMX S0C S1CMX S1C ECMX EC YGC FGC
700416.0 700416.0 106496.0 1472.0 233472.0 233472.0 1408.0 700288.0 81088.0 6489 7
$ jstat -gcold 20167
PC PU OC OU YGC FGC FGCT GCT
38912.0 21426.5 1398784.0 1375651.6 6503 7 22.826 83.627
$ jstat -gcoldcapacity 20167
OGCMN OGCMX OGC OC YGC FGC FGCT GCT
1398784.0 1398784.0 1398784.0 1398784.0 6517 7 22.826 83.779
$ jstat -gcpermcapacity 20167
PGCMN PGCMX PGC PC YGC FGC FGCT GCT
16384.0 65536.0 38912.0 38912.0 6531 7 22.826 83.925