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December, 2003 Copyright 2003, CE Linux Forum
Member Companies
1
Reducing Startup Time in
Embedded Linux Systems
Tim Bird
Chair – Bootup Times Working Group
CE Linux Forum
December, 2003 Copyright 2003, CE Linux Forum
Member Companies
2
Overview
•
Characterization of the problem space
•
Current reduction techniques
•
Work in progress
•
CE Linux Forum
December, 2003 Copyright 2003, CE Linux Forum
Member Companies
3
Characterizing the Problem
Space
December, 2003 Copyright 2003, CE Linux Forum
Member Companies
4
The Problem
•
Linux doesn’t boot very fast
–
Current Linux desktop systems take about
90-120 seconds to boot
•
This is clearly not suitable for consumer
electronics products
December, 2003 Copyright 2003, CE Linux Forum
Member Companies
5
Delay Taxonomy
•
Major delay areas in startup:
–
Firmware
–
Kernel/driver initialization
–
User space initialization
–
Application startup
•
Scope of problem
–
Device-specific
–
Systemic
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