Speed

[darryl vandorp <dvandorp gmail com>]

Hey all,

I took a look at LuceneDriver.cs and think I have a couple optimiziations.
Basically it looks like the list of pending items is being walked
quite a few times.
The following patch made things speedier for me and seems to work ok.

Of course, I've never coded c-sharp before so i may be
misunderstanding what's supposed to be going on here.

Index: LuceneDriver.cs
===================================================================
RCS file: /cvs/gnome/beagle/beagled/LuceneDriver.cs,v
retrieving revision 1.31
diff -u -r1.31 LuceneDriver.cs
--- LuceneDriver.cs	19 Oct 2004 23:43:11 -0000	1.31
+++ LuceneDriver.cs	21 Oct 2004 15:01:55 -0000
@@ -798,32 +798,23 @@
 				// to Id numbers and store them in idsToDelete
 				watch.Restart ();
 				LNS.BooleanQuery uriQuery = new LNS.BooleanQuery ();
+             IndexReader reader;
+             reader = IndexReader.Open (driver.Store);
 				foreach (QueueItem item in pending) {
 					Uri uri = item.Uri;
-					if (item.IsDelete && ! item.IsSilent)
-						Log.Debug ("- {0}", uri);
+					if (item.IsDelete && ! item.IsSilent) {
+                                        Log.Debug ("- {0}", uri);
 					Term term = new Term ("Uri", uri.ToString ());
-					LNS.Query termQuery = new LNS.TermQuery (term);
-					uriQuery.Add (termQuery, false, false);
+                                      reader.Delete (term);
+                                        }
 				}
-				LNS.Searcher searcher = new LNS.IndexSearcher (driver.Store);
-				LNS.Hits uriHits = searcher.Search (uriQuery);
-				for (int i = 0; i < uriHits.Length (); ++i) {
-					int id = uriHits.Id (i);
-					idsToDelete.Add (id);
-				}
-				searcher.Close ();
+                                reader.Close();
 				watch.Stop ();
 				Log.Debug ("Step #1: {0} {1} {2}", watch, pending.Count,
watch.ElapsedTime / pending.Count);
 
 				// Step #2: Walk across the list of ids and delete all
 				// of those documents.
 				watch.Restart ();
-				IndexReader reader;
-				reader = IndexReader.Open (driver.Store);
-				foreach (int id in idsToDelete)
-					reader.Delete (id);
-				reader.Close ();
 				watch.Stop ();
 				Log.Debug ("Step #2: {0}", watch);