Patent · US Active

Efficient communication of interrupts from kernel space to user space using event queues

US9378047B1 · kind B1 · utility

20Cited by

4References

9Claims

0Family size

Assignee

EMC Corporation · US

Inventors

Christopher M. Gould · Leominster, US
Peter J. McCann · Mason, US
Mikhail Simonov · Torino, IT

Key dates

Filing date	Sep 18, 2013
Grant date	Jun 28, 2016
Priority date	—
Expiry date	Aug 21, 2034

Classification

Technology area (CPC G)Physics
CPC primaryG06F2209/543
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

Techniques are provided for routinely enqueuing events onto event queues by direct operation of an interrupt service routine (ISR) in kernel space when possible. Only when the event queue is unavailable does the ISR resort to offloading the enqueuing process to another kernel space thread. Unavailability can further be made uncommon by using separate event cores for different processing cores.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.