[jira] [Updated] (LUCENE-10130) HnswGraph could make use of a SparseFixedBitSet.getAndSet

["Robert Muir (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/LUCENE-10130?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Robert Muir updated LUCENE-10130:
---------------------------------
    Attachment: LUCENE-10130_round2.patch

> HnswGraph could make use of a SparseFixedBitSet.getAndSet
> ---------------------------------------------------------
>
>                 Key: LUCENE-10130
>                 URL: https://issues.apache.org/jira/browse/LUCENE-10130
>             Project: Lucene - Core
>          Issue Type: Task
>            Reporter: Robert Muir
>            Priority: Major
>         Attachments: LUCENE-10130.patch, LUCENE-10130_round2.patch
>
>
> Currently HnswGraph uses SparseFixedBitSet "visited" to track where it has already been. The logic currently looks like this:
> {code}
> if (visited.get(entryPoint) == false) {
>   visited.set(entryPoint);
>   ... logic ...
> }
> {code}
> If SparseFixedBitSet had a {{getAndSet}} (like FixedBitSet), the code could be:
> {code}
> if (visited.getAndSet(entrypoint) == false) {
>   ... logic ...
> }
> {code}



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