Development: Driver Performance Optimisations: Difference between revisions
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==V4L Driver Performance Optimisations== |
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==DVB Driver Performance Optimisations== |
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* Don't do heavy work in interrupt context. Use work queues. |
* Don't do heavy work in interrupt context. Use work queues. |
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Latest revision as of 03:20, 19 September 2009
V4L Driver Performance Optimisations
DVB Driver Performance Optimisations
In some cases it may be critical to do things really right, so here is a list of just the most important points when working on a DVB driver:
- Don't do heavy work in interrupt context. Use work queues.
- Avoid busy-polling.
- Don't use extra-threads unless really necessairy. They are usually avoidable.
- Don't call the Software Demultiplexer from interrupt context if avoidable.