enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. Inter-processor interrupt - Wikipedia

    en.wikipedia.org/wiki/Inter-processor_interrupt

    When a CPU wishes to send an interrupt to another CPU, it stores the interrupt vector and the identifier of the target's local APIC in the Interrupt Command Register (ICR) of its own local APIC. A message is then sent via the APIC bus to the target's local APIC, which then issues a corresponding interrupt to its own CPU.

  3. Busy waiting - Wikipedia

    en.wikipedia.org/wiki/Busy_waiting

    Other processes can use the CPU while the caller is blocked. The scheduler is given the information needed to implement priority inheritance or other mechanisms to avoid starvation. Busy-waiting itself can be made much less wasteful by using a delay function (e.g., sleep()) found in most operating systems. This puts a thread to sleep for a ...

  4. Hang (computing) - Wikipedia

    en.wikipedia.org/wiki/Hang_(computing)

    In many cases programs may appear to be hung, but are making slow progress, and waiting a few minutes will allow the task to complete. Modern operating systems provide a mechanism for terminating hung processes, for instance, with the Unix kill command, or through a graphical means such as the Task Manager's "end task" button in Windows (select the particular process in the list and press "end ...

  5. Task Manager (Windows) - Wikipedia

    en.wikipedia.org/wiki/Task_Manager_(Windows)

    Task Manager, previously known as Windows Task Manager, is a task manager, system monitor, and startup manager included with Microsoft Windows systems. It provides information about computer performance and running software, including names of running processes, CPU and GPU load, commit charge, I/O details, logged-in users, and Windows services.

  6. System Idle Process - Wikipedia

    en.wikipedia.org/wiki/System_Idle_Process

    However, the idle process does not use up computer resources (even when stated to be running at a high percent). Its CPU time "usage" is a measure of how much CPU time is not being used by other threads. In Windows 2000 and later the threads in the System Idle Process are also used to implement CPU power saving.

  7. Nearly 30% of US drugstores closed in one decade, study shows

    www.aol.com/nearly-30-us-drugstores-closed...

    Nearly three out of 10 U.S. drugstores that were open during the previous decade had closed by 2021, new research shows. Black and Latino neighborhoods were most vulnerable to the retail pharmacy ...

  8. Idle (CPU) - Wikipedia

    en.wikipedia.org/wiki/Idle_(CPU)

    Many operating systems, for example Windows, [1] Linux, [2] and macOS [3] will run an idle task, which is a special task loaded by the OS scheduler on a CPU when there is nothing for the CPU to do. The idle task can be hard-coded into the scheduler, or it can be implemented as a separate task with the lowest possible priority.

  9. Spinlock - Wikipedia

    en.wikipedia.org/wiki/Spinlock

    To reduce inter-CPU bus traffic, code trying to acquire a lock should loop reading without trying to write anything until it reads a changed value. Because of MESI caching protocols, this causes the cache line for the lock to become "Shared"; then there is remarkably no bus traffic while a CPU waits for the lock. This optimization is effective ...