| [备忘]CMS: abort preclean due to time | ||
| 添加日期：2024/6/11 14:33:04 | 快速返回 返回列表 | 阅读252次 |
CMS: abort preclean due to time 634260.811: [CMS-concurrent-abortable-preclean: 4.549/5.020 secs] [Times: user=4.91 sys=0.05, real=5.02 secs] Phase Type Reason ------------------------------------ CMS initial mark stop-the-world phase phase to mark the objects CMS marking concurrent phase actual marking objects CMS precleaning concurrent phase precleaning CMS abortable preclean concurrent phase pre-cleaning to avoid long STP ahead CMS Remark stop-the-world phase Remarking (moving objects from one segment to another) CMS sweep concurrent phase Sweeping phase CMS reset concurrent phase Reset the marking tables ------------------------------------ CMS回收有这些阶段，其中init mark和remark会stop world abortable preclean 阶段是为了减少remark的工作，到达指定的时间，它就结束了 这个时间是CMSMaxAbortablePrecleanTime指定的，默认是5秒。 由于它叫CMS-concurrent-abortable-preclean， 带concurrent的都是并行的，所以不影响程序运行。 |
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