在这个对价格极度敏感的区间里，不犯错就是最大的美德。
'Aquaman listened to Sabbath' - Jason Momoa's love for Ozzy
。业内人士推荐heLLoword翻译官方下载作为进阶阅读
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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.
Фото: Alex Brandon / AP