Do you have a patch for the file, I would love to check it out and run it against my query suite.
-Dave On 3/13/07, Christoph Kiehl <[EMAIL PROTECTED]> wrote:
Christoph Kiehl wrote: > I was digging a bit into Jackrabbit today and found another place where > some caching did provide a substantial performance gain to queries which > check one attribute for more than one value (like /foo/[EMAIL PROTECTED]:bar='john' > or foo:bar='doe']). The BitSet in calculateDocFilter() is right now > created twice for the query above. On large repositories this takes > about 200ms per BitSet on my machine for a particular field. Caching > these BitSets per IndexReader and field in a WeakHashMap with the > IndexReader as a key gave me some real improvements. Replying to myself ;): - I was referring to calculateDocFilter() in org.apache.jackrabbit.core.query.lucene.MatchAllScorer - The achieved performance improvement varied between 30-60% depending on the actual query Cheers, Christoph
