Any operating system (OS) can be extended before runtime, by two means: 1) Programming; if one has the source code, by programming (coding) and then compiling the new code into a new system, and/or, 2) Patches; by applying patches into a system. Extensible OS is the accepted term for what can be more precisely and correctly termed a runtime extensible OS. In such systems, application and/or user software, with normal user privileges, can provide extensions to OS (kernel) functions during runtime to adjust OS behavior to application needs, with good safety, security, and efficiency (enough to be useful). Such runtime modifiability is similar to what a reflective OS allows, and can be viewed as a limited type of (application-level) OS reflectivity. On this page, OSs are arranged in three groups and levels: 1) Top group: types or classes of OSs. 2) Middle group: OSs for which there are more than one instance of an OS of this name/type, an OS family. 3) Bottom group: specific OSs, individual instances; there is only one OS of this name/type.
  • A Caching Model of Operating System Kernel Functionality Stanford Cache Kernel, supervisor-mode component of V++ OS; caches system objects (threads, address spaces) to raise performance; microkernel alternative, performance equals normal monolithic OSs, yet gives application-level control of system resources, more modularity, scalability, smaller size, means of fault containment.
  • BITS The Component Based Operating System: based on describing system resources as independent components, lets applications implement their own abstractions, define their own protection schemes, participate in resource management.
  • Extensible Operating Systems Brief description, and on-site links to descriptions of Choices, Exokernel, GLUnix, VINO, SPIN.
  • Using Kernel Extensions to Decrease the Latency of User-Level Communication Primitives Suggests solving networking and distributed systems latency via operating system extensibility; University of New Mexico Technical Report.

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Inter CAFFE

40 korisnika prisutno: 3 registrovanih, 1 skrivenih i 36 senkica. Ulogovani: cesko, galeksic, niko650 (01:08)

Bolje te vidim kad sklopim oči - Milan Višnjić
Uto 16.12.2014 8:31, micha@Umetnost
Jedan od cudnijih snova
Pon 15.12.2014 15:58, jeka1983@Sanovnik forum
Iz moje svaštare
Pon 15.12.2014 12:48, micha@Umetnost
Sanjam stalno bivseg momka. Da li to ista znaci?
Sre 10.12.2014 7:59, danielarmd@Sanovnik forum
Muzicki kutak - pjesme za prijatelje
Sre 10.12.2014 0:11, apprivoiser@Umetnost
Poezija - najlepsi stihovi
Sub 06.12.2014 10:32, Wind@Umetnost
Filigranska kapija od stihova - Dejan Milenković
Sub 06.12.2014 1:28, tragalac@Umetnost
Recepti, jela od mesa - rostiljijada
Sub 06.12.2014 0:45, niko650@Životni stil

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