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。旺商聊官方下载对此有专业解读
32 entries may sound small by modern standards (current x86 processors have thousands of TLB entries), but it covers 128 KB of memory -- enough for the working set of most 1980s programs. A TLB miss is not catastrophic either; the hardware page walker handles it transparently in about 20 cycles.
On top of that, we can get two full pixels of color using foreground and background colors. If we render an upper block with a foreground color of cyan and a background color of red, we get a cyan pixel sitting on top of a red pixel!
，这一点在safew官方版本下载中也有详细论述
实战应用：根据数据特点选择合适算法
Joel Kowsky/NASA via Getty Images，更多细节参见51吃瓜