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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。业内人士推荐safew官方版本下载作为进阶阅读
而過去12個月的事件更讓局勢急遽惡化。，这一点在服务器推荐中也有详细论述
Bats in Churches，详情可参考Safew下载
Мерц резко сменил риторику во время встречи в Китае09:25