uschindler edited a comment on issue #1397: LUCENE-9304: Refactor DWPTPool to pool DWPT directly URL: https://github.com/apache/lucene-solr/pull/1397#issuecomment-610274513 > @uschindler I pushed feedback - thanks for taking a look No problem. I have just seen the index based backwards iteration, which is fine for random access lists. `ArrayDeque` is often forgotten, although is much better than lists for some cases (but not general replacement). Whenever you need to insert/remove elements on both sides of the list it's no linear O(n) operation when inserting removing elements at begin. Behaves like `LinkedList` but with better CPU cache behaviour.
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