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https://issues.apache.org/jira/browse/LUCENE-8653?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16748227#comment-16748227
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Mike Sokolov commented on LUCENE-8653:
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Yeah, some initial measurements using luceneutil are showing pretty neutral
impact. I am also thinking of looking at memory-starved conditions and see what
happens there, and there is an idea that this could end up helping the off-heap
use case in LUCENE-8635
> Reverse FST storage so it can be read forward
> ---------------------------------------------
>
> Key: LUCENE-8653
> URL: https://issues.apache.org/jira/browse/LUCENE-8653
> Project: Lucene - Core
> Issue Type: Improvement
> Components: core/FSTs
> Reporter: Mike Sokolov
> Priority: Major
>
> Discussion of keeping FST off-heap led to the idea of ensuring that FST's can
> be read forward in order to be more cache-friendly and align better with
> standard I/O practice. Today FSTs are read in reverse and this leads to some
> awkwardness, and you can't use standard readers so the code can be confusing
> to work with.
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