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Optimizing your webapp by using django-debug-toolbar, select_related(), and prefetch_related()

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No logo availableDjangoCon US
 Adams, Christopher

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Optimizing your webapp by using django-debug-toolbar, select_related(), and prefetch_related()
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34
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44
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CC Attribution - ShareAlike 4.0 International:
You are free to use, adapt and copy, distribute and transmit the work or content in adapted or unchanged form for any legal purpose as long as the work is attributed to the author in the manner specified by the author or licensor and the work or content is shared also in adapted form only under the conditions of this
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This talk explains how to perform SQL query analysis and how to rewrite your views to reduce the number of queries Django uses in evaluating your model objects and their attributes. Special emphasis will be given to the powerful methods "select_related" and "prefetch_related." I will highlight the problem with a naive use of the ORM, how to target code for optimization, and the beneficial result.