Java垃圾回收-新阈值

Question

我认为，年轻一代中的对象必须在升级为旧一代或终身一代之前必须通过15次GC（最多15个）的测试。

新阈值是什么意思，它将如何影响JVM新一代GC或次要GC？

这是否意味着Young Generation的大小不足以使JVM在对象上执行15 GC？

在下面的示例中，新阈值是10。这是否意味着我必须增加堆大小，特别是在年轻一代中？

Desired survivor size 121634816 bytes, new threshold 10 (max 15)

PSAdaptiveSizePolicy::compute_eden_space_size: costs minor_time: 0.004921 major_cost: 0.047628 mutator_cost: 0.947450 throughput_goal: 0.990000 live_space: 330899520 free_space: 1115684864 old_eden_size: 419430400 desired_eden_size: 436207616

AdaptiveSizePolicy::survivor space sizes: collection: 28 (125829120, 113246208) -> (125829120, 121634816) 

AdaptiveSizeStop: collection: 28 

[PSYoungGen: 421856K->10080K(532480K)] 785165K->373389K(1269760K), 0.0312765 secs] [Times: user=0.25 sys=0.00, real=0.03 secs] 

2018-07-04T02:09:01.886+0800: 359.263: [GC (Allocation Failure) AdaptiveSizePolicy::update_averages:  survived: 4587536  promoted: 0  overflow: false

AdaptiveSizeStart: 359.286 collection: 29 

  avg_survived_padded_avg: 111951304.000000  avg_promoted_padded_avg: 43516000.000000  avg_pretenured_padded_avg: 41.070663  tenuring_thresh: 11  target_size: 113246208