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  2. 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.

  3. Memory paging - Wikipedia

    en.wikipedia.org/wiki/Memory_paging

    When every process is waiting on the swap, the system is considered to be in swap death. [24] [25] Swap death can happen due to incorrectly configured memory overcommitment. [26] [27] [28] The original description of the "swapping to death" problem relates to the X server. If code or data used by the X server to respond to a keystroke is not in ...

  4. Out of memory - Wikipedia

    en.wikipedia.org/wiki/Out_of_memory

    Out of memory screen display on system running Linux Mint 9 (kernel 2.6.32). Out of memory (OOM) is an often undesired state of computer operation where no additional memory can be allocated for use by programs or the operating system.

  5. Error code - Wikipedia

    en.wikipedia.org/wiki/Error_code

    Main page; Contents; Current events; Random article; About Wikipedia; Contact us; Help; Learn to edit; Community portal; Recent changes; Upload file

  6. CHKDSK - Wikipedia

    en.wikipedia.org/wiki/CHKDSK

    On Windows NT operating systems, CHKDSK can also check the disk surface for bad sectors and mark them (in MS-DOS 6.x and Windows 9x, this is a task done by Microsoft ScanDisk). The Windows Server version of CHKDSK is RAID-aware and can fully recover data in bad sectors of a disk in a RAID-1 or RAID-5 array if other disks in the set are intact. [11]

  7. DLL hell - Wikipedia

    en.wikipedia.org/wiki/DLL_Hell

    DLL hell is an umbrella term for the complications that arise when one works with dynamic-link libraries (DLLs) used with older Microsoft Windows operating systems, [1] particularly legacy 16-bit editions, which all run in a single memory space.

  8. Compare-and-swap - Wikipedia

    en.wikipedia.org/wiki/Compare-and-swap

    Is a generalisation of normal compare-and-swap. It can be used to atomically swap an arbitrary number of arbitrarily located memory locations. Usually, multi-word compare-and-swap is implemented in software using normal double-wide compare-and-swap operations. [16] The drawback of this approach is a lack of scalability. Persistent compare-and-swap

  9. zram - Wikipedia

    en.wikipedia.org/wiki/Zram

    The two most common uses for zram are for the storage of temporary files (/tmp) and as a swap device. Initially, zram had only the latter function, hence the original name "compcache" ("compressed cache"). Unlike swap, zram only uses 0.1% of the maximum size of the disk when not in use. [1]