benwtrent opened a new pull request, #13799:
URL: https://github.com/apache/lucene/pull/13799

   After adjusting tests that truly exercise intra-merge parallelism, more 
issues have arisen. See: https://github.com/apache/lucene/issues/13798
   
   To be risk adverse & due to the soon to be released/freezed Lucene 10 & 
9.12, I am reverting all intra-merge parallelism, except for the parallelism 
when merging HNSW graphs.
   
   Merging other structures was never really enabled in a release (we disabled 
it in a bugfix for Lucene 9.11). While this is frustrating as it seems like we 
leaving lots of perf on the floor, I am err'ing on the side of safety here. 
   
   In Lucene 10, we can work on incrementally reenabling intra-merge 
parallelism.
   
   closes: https://github.com/apache/lucene/issues/13798


-- 
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.

To unsubscribe, e-mail: issues-unsubscr...@lucene.apache.org

For queries about this service, please contact Infrastructure at:
us...@infra.apache.org


---------------------------------------------------------------------
To unsubscribe, e-mail: issues-unsubscr...@lucene.apache.org
For additional commands, e-mail: issues-h...@lucene.apache.org

Reply via email to