? ? atcom.gc.EasySerial.main(EasySerial.java:14)

Heap

?def new generation? total 2880K, used 2810K [0x03ca0000,0x03fb0000, 0x03fb0000)

?eden space 2624K,? 99% used[0x03ca0000, 0x03f2e8e8, 0x03f30000)

?from space 256K,? 75% used[0x03f70000, 0x03fa0030, 0x03fb0000)

?to? space 256K,? 0% used [0x03f30000, 0x03f30000, 0x03f70000)

?tenured generation? total 37824K, used 37792K [0x03fb0000,0x064a0000, 0x064a0000)

? the space 37824K,? 99% used[0x03fb0000, 0x064982e0, 0x06498400, 0x064a0000)

?compacting perm gen? total 12288K, used 2105K [0x064a0000,0x070a0000, 0x0a4a0000)

? the space 12288K,? 17% used [0x064a0000, 0x066ae4a8, 0x066ae600,0x070a0000)

?

其他的内容和固定大小基本一致，多出来一种情况：

[GC [DefNew: 2755K->2755K(2880K),0.0000144 secs][Tenured: 37030K->37799K(37824K), 0.0039907 secs]39786K->39784K(40704K), [Perm : 2086K->2086K(12288K)], 0.0040547 secs][Times: user=0.00 sys=0.00, real=0.00 secs]

这个是对新生代，老年代，永久代都进行了次级垃圾回收。