| 释义 |
- Implementations of timer coalescing
- See also
- References
Timer coalescing is a computer system energy-saving technique that reduces central processing unit (CPU) power consumption by reducing the precision of software timers to allow the synchronization of process wake-ups, minimizing the number of times the CPU is forced to perform the relatively power-costly operation of entering and exiting idle states. Implementations of timer coalescing - The Linux kernel gained support for deferrable timers in 2.6.22,[2][3] and controllable "timer slack" for threads in 2.6.28 allowing timer coalescing.[4][5]
- Timer coalescing has been a feature of Microsoft Windows from Windows 7 onward.[1]
- Apple's XNU kernel based OS X gained support as of OS X Mavericks.[7][8]
See also {{Div col}}- Advanced Configuration and Power Interface (ACPI)
- Advanced Programmable Interrupt Controller (APIC)
- High Precision Event Timer (HPET)
- HLT (x86 instruction)
- Interrupt coalescing
- Programmable interval timer
- Time Stamp Counter (TSC)
{{Div col end}} References 1. ^{{cite web|url=http://www.microsoft.com/whdc/system/pnppwr/powermgmt/TimerCoal.mspx|title=Windows Timer Coalescing|date=January 20, 2009|accessdate=2009-04-21|publisher=Microsoft}}
2. ^1 {{cite web|url=https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=6e453a67510a17f01b63835f18569e8c3939a38c | title = Add support for deferrable timers | date = 2007-05-08 | accessdate=2014-03-22}}
3. ^1 {{cite web|url=http://kernelnewbies.org/Linux_2_6_22|title=Linux Kernel 2 6 22|publisher=kernelnewbies.org|accessdate=2014-03-22}}
4. ^1 {{cite web|url=https://www.apple.com/osx/preview/advanced-technologies.html|title=OS X Mavericks - Advanced Technologies |publisher=Apple Inc.|accessdate=2014-03-22}}
5. ^1 {{cite web |title = OS X Mavericks: Core Technologies Overview |url = https://images.apple.com/osx/preview/docs/OSX_Mavericks_Core_Technology_Overview.pdf |publisher = Apple, Inc. |date = June 10, 2013 |accessdate = 2013-06-10 |deadurl = yes |archiveurl = https://web.archive.org/web/20130626042313/http://images.apple.com/osx/preview/docs/OSX_Mavericks_Core_Technology_Overview.pdf |archivedate = June 26, 2013 |df = }}
6. ^1 {{cite web|url=http://man7.org/linux/man-pages/man7/time.7.html |title=time(7) - Linux manual page |publisher=Man7.org |date= |accessdate=2014-03-24}}
7. ^1 {{cite web|url=http://man7.org/linux/man-pages/man2/prctl.2.html |title=prctl(2) - Linux manual page |publisher=Man7.org |date= |accessdate=2014-03-24}}
}}{{compsci-stub}} 2 : Operating system kernels|Synchronization |