jstat View JVM heap usage and GC status

 

The operation and maintenance brother taught me the Niu X command,

jstat -gc  pid  1000

 

-----------------------------

  S0C S1C S0U S1U EC EU OC OR PC PU YGC YGCT FGC GCTF GCT   
819200.0 819200.0 124288.2 0.0 6553600.0 1983738.0 4096000.0 1155901.3 161040.0 96631.9 588 107 231 6 5.425 112
656 819200.0 819200.0 124288.2 0.0 6553600.0 2034521.7 4096000.0 1155901.3 161040.0 96631.9 588 107 231 6 5.425 112
656 819200.0 819200.0 124288.2 0.0 6553600.0 2115131.0 4096000.0 1155901.3 161040.0 96631.9 588 107.231 6 5.425 112.656
819200.0 819200.0 6553600.0 2177349.0 4096000.0 1155901.3 161040.0 96631.9 588 107.231 6 5.425 112.656
819200.0 819200.0 124288.2  0.0   6553600.0 2262351.1 4096000.0  1155901.3  161040.0 96631.9    588  107.231   6      5.425  112.656
819200.0 819200.0 124288.2  0.0   6553600.0 2331296.3 4096000.0  1155901.3  161040.0 96631.9    588  107.231   6      5.425  112.656
819200.0 819200.0 124288.2  0.0   6553600.0 2382819.7 4096000.0  1155901.3  161040.0 96631.9    588  107.231   6      5.425  112.656
819200.0 819200.0 124288.2  0.0   6553600.0 2464785.9 4096000.0  1155901.3  161040.0 96631.9    588  107.231   6      5.425  112.656
819200.0 819200.0 124288.2  0.0   6553600.0 2505576.1 4096000.0  1155901.3  161040.0 96631.9    588  107.231   6      5.425  112.656
819,200.0 819,200.0 124,288.2 6,553,600.0 2,544,732.7 4,096,000.0 0.0 1,155,901.3 161,040.0 96,631.9 588 6 5.425
107.231 112.656 819,200.0 819,200.0 124,288.2 6,553,600.0 2,607,338.5 4,096,000.0 0.0 1,155,901.3 161,040.0 96,631.9 588 6 5.425 107.231 112.656 819,200.0 819,200.0 124,288.2 6,553,600.0
2,662,773.0 4,096,000.0 0.0 1,155,901.3 161,040.0 96,631.9 588 6 5.425 112.656 107.231

world love 2016/6 /28 17:39:03

jstat -gc pid 1000