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  2. Page table - Wikipedia

    en.wikipedia.org/wiki/Page_table

    A page table is a data structure used by a virtual memory system in a computer to store ... An operating system may minimize the size of the hash table to reduce this ...

  3. Page (computer memory) - Wikipedia

    en.wikipedia.org/wiki/Page_(computer_memory)

    A system with a smaller page size uses more pages, requiring a page table that occupies more space. For example, if a 2 32 virtual address space is mapped to 4 KiB (2 12 bytes) pages, the number of virtual pages is 2 20 = (2 32 / 2 12). However, if the page size is increased to 32 KiB (2 15 bytes), only 2 17 pages are required. A multi-level ...

  4. Memory paging - Wikipedia

    en.wikipedia.org/wiki/Memory_paging

    Load the required data into the available page frame. Update the page table to refer to the new page frame. Return control to the program, transparently retrying the instruction that caused the page fault. When all page frames are in use, the operating system must select a page frame to reuse for the page the program now needs.

  5. Sample size determination - Wikipedia

    en.wikipedia.org/wiki/Sample_size_determination

    The table shown on the right can be used in a two-sample t-test to estimate the sample sizes of an experimental group and a control group that are of equal size, that is, the total number of individuals in the trial is twice that of the number given, and the desired significance level is 0.05. [4] The parameters used are:

  6. Translation lookaside buffer - Wikipedia

    en.wikipedia.org/wiki/Translation_lookaside_buffer

    If it is a TLB miss, then the CPU checks the page table for the page table entry. If the present bit is set, then the page is in main memory, and the processor can retrieve the frame number from the page-table entry to form the physical address. [6] The processor also updates the TLB to include the new page-table entry.

  7. Intel 5-level paging - Wikipedia

    en.wikipedia.org/wiki/Intel_5-level_paging

    Intel 5-level paging, referred to simply as 5-level paging in Intel documents, is a processor extension for the x86-64 line of processors. [1]: 11 It extends the size of virtual addresses from 48 bits to 57 bits by adding an additional level to x86-64's multilevel page tables, increasing the addressable virtual memory from 256 TiB to 128 PiB.

  8. Pixel density - Wikipedia

    en.wikipedia.org/wiki/Pixel_density

    Since most digital hardware devices use dots or pixels, the size of the media (in inches) and the number of pixels (or dots) are directly related by the 'pixels per inch'. The following formula gives the number of pixels, horizontally or vertically, given the physical size of a format and the pixels per inch of the output:

  9. Help:Advanced table formatting - Wikipedia

    en.wikipedia.org/wiki/Help:Advanced_table_formatting

    Another alternative is to copy the entire table from the displayed page, paste the text into a spreadsheet, move the columns as you will. Then reconstruct the table lines with a formula. This formula handles a three column table, reconstructing a single line.