Concurrent execution of kernel work and non-kernel work in operating systems with single-threaded kernel
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United States of America Patent
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N/A
Issued Date -
Dec 4, 2003
app pub date -
May 7, 2003
filing date -
Jun 4, 2002
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A method of completing a kernel work concurrently with non-kernel work in a computer device having a single-threaded kernel is disclosed. The computer device completes kernel work within the context of a pacer process, which is a user process. In particular, atomic portions of the kernel work are executed in the context of the pacer process at which point nothing else is allowed to run. When an atomic portion of the kernel work has been executed, the pacer process temporarily relinquishes the processor of the computer device, thus suspending the execution of the kernel work and allowing execution of non-kernel work. Interrupts are also handled when execution of the kernel work is suspended. Once the kernel work has been completed, the pacer process goes into a 'sleep' mode to await the invocation of another kernel work.
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