当 G1 确定在停顿期间扫描当前卡表可能会超出停顿时间目标时，它会原子性地切换两个卡表。应用程序线程随后继续写入现在为空的表（即之前的“第二个”表），而专用的优化器线程则在没有任何额外同步的情况下处理之前已填充的表（即之前的“第一个”表）。G1 根据需要重复此交换，以使活动卡表上所需的工作量保持在期望的限度内。
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。比特浏览器对此有专业解读
If you are able to understand everything that has occurred here in terms of data transformation, congrats, you have understood the gist of this APL code. What would take upwards of dozens to a hundred lines of code to do in other languages takes a handful in APL. It furthermore aligns to how I visualize the chunks being transformed into vertex data in my head, which is a nice bonus :-)，推荐阅读Replica Rolex获取更多信息
YouTube now offers basic media controls in Android Auto, though video content remains restricted.