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  2. HIMEM.SYS - Wikipedia

    en.wikipedia.org/wiki/HIMEM.SYS

    In Windows 3.1 and Windows 9x, there is also a command-line loadable version of HIMEM.SYS called XMSMMGR.EXE. It can load extended memory services after the system boots into the command prompt. It can load extended memory services after the system boots into the command prompt.

  3. Page fault - Wikipedia

    en.wikipedia.org/wiki/Page_fault

    If the memory access time is 0.2 μs, then the page fault would make the operation about 40,000 times slower. Performance optimization of programs or operating systems often involves reducing the number of page faults. Two primary focuses of the optimization are reducing overall memory usage and improving memory locality.

  4. Disk Cleanup - Wikipedia

    en.wikipedia.org/wiki/Disk_Cleanup

    In addition to the categories that appear on the Disk Cleanup tab, the More Options tab offers additional options for freeing up hard drive space through removal of optional Windows components, installed programs, and all but the most recent System Restore point or Shadow Copy data in some versions of Microsoft Windows.

  5. Microsoft Drive Optimizer - Wikipedia

    en.wikipedia.org/wiki/Microsoft_Drive_Optimizer

    The Windows Vista version has been updated in Windows Vista SP1 to include the improvements made in Windows Server 2008. The most notable of these improvements is that the ability to select which volumes are to be defragmented has been added back. [15] Notably, the Windows Vista defragmenter is much more effective than the version included with XP.

  6. Translation lookaside buffer - Wikipedia

    en.wikipedia.org/wiki/Translation_lookaside_buffer

    A translation lookaside buffer (TLB) is a memory cache that stores the recent translations of virtual memory to physical memory. It is used to reduce the time taken to access a user memory location. [1] It can be called an address-translation cache. It is a part of the chip's memory-management unit (MMU).

  7. Prefetcher - Wikipedia

    en.wikipedia.org/wiki/Prefetcher

    The prefetcher stores its trace files in the "Prefetch" folder inside the Windows folder (typically C:\Windows\Prefetch). The name of the boot trace file is always NTOSBOOT-B00DFAAD.PF , and application trace files are a concatenation of the application's executable name, a hyphen, a hexadecimal representation of the hash of the path the file ...

  8. Virtual memory compression - Wikipedia

    en.wikipedia.org/wiki/Virtual_memory_compression

    By reducing the I/O activity caused by paging requests, virtual memory compression can produce overall performance improvements. The degree of performance improvement depends on a variety of factors, including the availability of any compression co-processors, spare bandwidth on the CPU, speed of the I/O channel, speed of the physical memory, and the compressibility of the physical memory ...

  9. Memory management - Wikipedia

    en.wikipedia.org/wiki/Memory_management

    Memory management (also dynamic memory management, dynamic storage allocation, or dynamic memory allocation) is a form of resource management applied to computer memory.The essential requirement of memory management is to provide ways to dynamically allocate portions of memory to programs at their request, and free it for reuse when no longer needed.