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Dawid Weiss commented on LUCENE-6617: ------------------------------------- Err... how much is this going to save? Seems like pennies to me compared to what the actual data does? > Reduce FST's ram usage > ---------------------- > > Key: LUCENE-6617 > URL: https://issues.apache.org/jira/browse/LUCENE-6617 > Project: Lucene - Core > Issue Type: Improvement > Reporter: Michael McCandless > Assignee: Michael McCandless > Fix For: 5.3, Trunk > > Attachments: LUCENE-6617.patch > > > Spinoff from LUCENE-6199, pulling out just the FST RAM reduction changes. > The FST data structure tries to be a RAM efficient representation of a sorted > map, but there are a few things I think we can do to trim it even more: > * Don't store arc and node count: this is available from the Builder if you > really want to do something with it. > * Don't use the "paged" byte store unless the FST is huge; just use a > single byte[] > * Some members like lastFrozenNode, reusedBytesPerArc, allowArrayArcs are > only used during building, so we should move them to the Builder > * We don't need to cache NO_OUTPUT: we can ask the Outputs impl for it -- This message was sent by Atlassian JIRA (v6.3.4#6332) --------------------------------------------------------------------- To unsubscribe, e-mail: dev-unsubscr...@lucene.apache.org For additional commands, e-mail: dev-h...@lucene.apache.org