CPU-cycle stealing for multi-tasking operating system

Details CPU-cycle stealing for multi-tasking operating system CPU-cycle stealing for multi-tasking operating system

1997-09-23

2000-01-04

Banankhah, Majid A.

Electrical computers and digital processing systems: multicomput

Computer-to-computer data routing

Least weight routing

709102, G06F 900

Patent

active

060120827

ABSTRACT:
A method and apparatus for CPU cycle stealing on a non-preemptive multi-tasking operating system allowing a first application to preempt other applications which are running concurrently on the operating system. The steps taken to perform the CPU cycle stealing include: inserting a hook near a starting address of message monitoring calls, and vectoring the execution path to the first application whenever one of the other applications calls the message monitoring calls, allowing the first application to steal CPU cycles from one of the other applications. The vectoring is provided by the hook inserted near the starting address of the message monitoring calls.

REFERENCES:
patent: 5339426 (1994-08-01), Aoshima
patent: 5390332 (1995-02-01), Golson
patent: 5481684 (1996-01-01), Richter et al.
"Intercepting API Functions in Win32", Peitrek, Matt, P.C. Magazine, Nov. 8, 1994.
"Hook and Monitor and 16-Bit Windows Function with our ProcHook DLL", Finnegan, James, Microsoft Systems Journal, Jan. 1994.
Kyle Marsh, Win32 Hooks, Feb. 1994, Microsoft Developer Network Technology Group.

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