#现在的配置:
-Xms2048m -Xmx2048m -XX:MaxNewSize=512m -XX:MaxPermSize=1024m -XX:-UseGCOverheadLimit
>>jstat -gcutil 15594 1000 50
S0 S1 E O M CCS YGC YGCT FGC FGCT GCT
0.00 0.00 100.00 99.95 93.37 88.86 32 2.227 432 462.593 464.820
0.00 0.00 100.00 99.95 92.90 88.38 32 2.227 433 463.871 466.098
0.00 0.00 100.00 99.95 92.89 88.36 32 2.227 434 465.120 467.346
0.00 0.00 100.00 99.95 92.81 88.32 32 2.227 435 466.299 468.526
0.00 0.00 100.00 99.95 92.79 88.30 32 2.227 436 467.437 469.663
# 加上了一个
>>jstat -gc 16768 1000 5
S0C S1C S0U S1U EC EU OC OU MC MU CCSC CCSU YGC YGCT FGC FGCT GCT
100864.0 42496.0 0.0 0.0 109056.0 109056.0 647168.0 646958.3 62680.0 59061.0 7896.0 7075.9 33 1.594 140 134.406 136.000
100864.0 42496.0 0.0 0.0 109056.0 109056.0 647168.0 646958.3 62680.0 59061.0 7896.0 7075.9 33 1.594 141 135.461 137.055
100864.0 42496.0 0.0 0.0 109056.0 109056.0 647168.0 646958.3 62680.0 59061.0 7896.0 7075.9 33 1.594 142 136.367 137.961
100864.0 42496.0 0.0 0.0 109056.0 109056.0 647168.0 646958.2 62680.0 59061.0 7896.0 7075.9 33 1.594 143 137.351 138.945
100864.0 42496.0 0.0 0.0 109056.0 109056.0 647168.0 646958.2 62680.0 59061.0 7896.0 7075.9 33 1.594 144 138.390 139.985