Identify pages that may be competing with each other
Virtual memory is conceptually simple but potentially devastating to performance. Every memory access must go through segmentation (add segment base, check limit) and then paging (look up the page table). Naively, paging alone requires two additional memory reads per access -- one for the page directory entry, one for the page table entry.
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我以为她没有分离焦虑，没想到，周三起床时，就坚持不住了，说不想起床，嗷嗷哭。我们就对她进行疏导，告诉她你很棒坚持了很多天了，但是你大了，需要有自己的朋友，要上学学习知识，还有老师、小朋友跟你玩。不是挺好的吗。
Медведев вышел в финал турнира в Дубае17:59
"A wave came up the street and knocked me off the step, I was carried across the road, over to the wall, but I was able to kick off and get back," he said.