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.
ssh is a dumb client; it just receives, decrypts, and displays lines of text sent by the server. So to run our game we render every frame server-side and relay them to our clients.
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for (int i = 0; i < n; i++) {
动态的视觉律动：特有的视窗设计，让 CD 碟片旋转清晰可见，提供了一种数字屏幕无法替代的播放仪式感。