Bug 1648 - Real-time process-executed timers
Summary: Real-time process-executed timers
Status: RESOLVED INVALID
Alias: None
Product: Meta-yocto
Classification: Build System, Metadata & Runtime
Component: meta-yocto (show other bugs)
Version: unspecified
Hardware: x86 Multiple
: Low enhancement
Target Milestone: 1.3
Assignee: Darren Hart
QA Contact:
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Whiteboard: (P4)
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Blocks:
 
Reported: 2011-10-04 22:39 UTC by Song Liu
Modified: 2012-05-16 21:29 UTC (History)
4 users (show)

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OS type for building Yocto: ---
Type of Regression: ---
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Documentation change: ---

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Description Song Liu 2011-10-04 22:39:09 UTC 
Timers currently run at the priority of the softirq that processes them and they are accounted to whichever task was preempted for them to run. This negatively impacts determinism and accounting accuracy.
Comment 1 Darren Hart 2011-10-14 12:40:25 UTC 
Likely at risk for 1.2 delivery due to Linux kernel release schedule and Yocto schedule. Possibly 1.3 delivery.
Comment 2 Darren Hart 2012-05-16 21:29:08 UTC 
This is perhaps not best tracked in our bugzilla system. This is a feature enhancement for the kernel itself, and not one that has been requested by any users of the system. Will leave this for the Linux kernel community to manage (so I may still do the work).