[ http://issues.apache.org/jira/browse/LUCENE-756?page=comments#action_12460292 ] Doron Cohen commented on LUCENE-756: ------------------------------------
> Does this mean a separate file outside the final .cfs files? Oh no - there's a single .nrm file in the .cfs file (instead of multiple .fN files in the .cfs file). As before, only .sN files (separated norm files) are outside of .cfs file. > Maintain norms in a single file .nrm > ------------------------------------ > > Key: LUCENE-756 > URL: http://issues.apache.org/jira/browse/LUCENE-756 > Project: Lucene - Java > Issue Type: Improvement > Components: Index > Reporter: Doron Cohen > Assigned To: Doron Cohen > Priority: Minor > Attachments: nrm.patch.txt > > > Non-compound indexes are ~10% faster at indexing, and perform 50% IO activity > comparing to compound indexes. But their file descriptors foot print is much > higher. > By maintaining all field norms in a single .nrm file, we can bound the number > of files used by non compound indexes, and possibly allow more applications > to use this format. > More details on the motivation for this in: > http://www.nabble.com/potential-indexing-perormance-improvement-for-compound-index---cut-IO---have-more-files-though-tf2826909.html > (in particular > http://www.nabble.com/Re%3A-potential-indexing-perormance-improvement-for-compound-index---cut-IO---have-more-files-though-p7910403.html). -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: http://issues.apache.org/jira/secure/Administrators.jspa - For more information on JIRA, see: http://www.atlassian.com/software/jira --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]