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With PAE, the page table entry of the x86 architecture is enlarged from 32 to 64 bits. This allows more room for the physical page address, or "page frame number" field, in the page table entry. In the initial implementations of PAE the page frame number field was expanded from 20 to 24 bits.
x86-64: 64-bit processor architecture, now officially known as AMD64 (AMD) or Intel64 (Intel); supported by the Athlon 64, Opteron and Intel Core 2 processors, among others; Cyrix 5x86, 6x86 (M1), 6x86MX and MediaGX (National/AMD Geode) series; VIA Technologies Eden (Samuel II), VIA C3, and VIA C7 processors (all 32-bit) and VIA Nano (x86-64 ...
x86-64 (also known as x64, x86_64, AMD64, and Intel 64) [note 1] is a 64-bit extension of the x86 instruction set architecture first announced in 1999. It introduces two new operating modes: 64-bit mode and compatibility mode, along with a new four-level paging mechanism.
At some point, the lead developer Andreas Kling added just-in-time compilation (for x86-64 architecture), but he later changed his mind and removed the mechanism, [33] citing development/debugging issues while also saying that he is interested to see how far utility and usability of the engine can go without it.
This is a severe performance penalty and was possibly the largest motivation for augmenting the x86 architecture with larger page sizes. The PSE allows for page sizes of 4 MiB to exist along with 4 KiB pages. The 1 MiB request described previously would easily be fulfilled with a single 4 MiB page, and it would require only one TLB entry.
This category contains articles about the x86 architecture. ... X86 virtualization; X86-64; X87 This page was last edited on 9 January 2020, at 20:56 (UTC). ...
PSE-36 was introduced into the x86 architecture with the Pentium II Xeon and was initially advertised as part of the "Intel Extended Server Memory Architecture" [2] [4] (sometimes abbreviated ESMA [5]), a branding which also included the slightly older PAE (and thus the Pentium Pro, which only supported PAE, was advertised as having only ...
The Carrizo mobile APUs were launched in 2015 based on Excavator x86 cores and featuring Heterogeneous System Architecture for integrated task sharing between CPUs and GPUs, which allows a GPU to perform compute functions, which is claimed provide greater performance increases than shrinking the feature size alone.