[ https://issues.apache.org/jira/browse/LUCENE-2232?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12828633#action_12828633 ]
Yonik Seeley commented on LUCENE-2232: -------------------------------------- A branch mispredict can be more costly, depending on the context. Cache misses are a major factor, and allowing speculative execution further ahead in the code (by correctly predicting branches) one can overlap those cache misses. http://www.infoq.com/presentations/click-crash-course-modern-hardware The complexity of modern hardware increases the need to do performance tests in context (unless it's clearly a win of course). > Use VShort to encode positions > ------------------------------ > > Key: LUCENE-2232 > URL: https://issues.apache.org/jira/browse/LUCENE-2232 > Project: Lucene - Java > Issue Type: Improvement > Components: Index > Reporter: Paul Elschot > Priority: Minor > Attachments: LUCENE-2232-nonbackwards.patch, > LUCENE-2232-nonbackwards.patch > > > Improve decoding speed for typical case of two bytes for a delta position at > the cost of increasing the size of the proximity file. -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online. --------------------------------------------------------------------- To unsubscribe, e-mail: java-dev-unsubscr...@lucene.apache.org For additional commands, e-mail: java-dev-h...@lucene.apache.org