Hi Yonik, Your patch has corrected the thread thrashing problem on multi-cpu systems. I've tested it with both 1.4.3 and 1.9. I haven't seen 100X performance gain, but that's because I'm caching QueryFilters and Lucene is caching the sort fields.
Thanks for the fast response! btw, I had previously tried Chris's fix (replace synchronized method with snapshot reference), but I was getting errors trying to fetch stored fields from the Hits. I didn't chase it down, but the errors went away when I reverted that specific patch. Peter On 10/12/05, Yonik Seeley <[EMAIL PROTECTED]> wrote: > > Here's the patch: > http://issues.apache.org/jira/browse/LUCENE-454 > > It resulted in quite a performance boost indeed! > > On 10/12/05, Yonik Seeley <[EMAIL PROTECTED]> wrote: > > > > Thanks for the trace Peter, and great catch! > > It certainly does look like avoiding the construction of the docMap for > a > > MultiTermEnum will be a significant optimization. > > > > > -Yonik > Now hiring -- http://tinyurl.com/7m67g > >
