Michael Peter Christen 2fc8ecee36 ConcurrentLinkedQueue has a VERY long return time on the .size() method. ... See http://docs.oracle.com/javase/6/docs/api/java/util/concurrent/ConcurrentLinkedQueue.html and the following test programm: public class QueueLengthTimeTest { public static long countTest(Queue<Integer> q, int c) { long t = System.currentTimeMillis(); for (int i = 0; i < c; i++) { q.add(q.size()); } return System.currentTimeMillis() - t; } public static void main(String[] args) { int c = 1; for (int i = 0; i < 100; i++) { Runtime.getRuntime().gc(); long t1 = countTest(new ArrayBlockingQueue<Integer>(c), c); Runtime.getRuntime().gc(); long t2 = countTest(new LinkedBlockingQueue<Integer>(), c); Runtime.getRuntime().gc(); long t3 = countTest(new ConcurrentLinkedQueue<Integer>(), c); System.out.println("count = " + c + ": ArrayBlockingQueue = " + t1 + ", LinkedBlockingQueue = " + t2 + ", ConcurrentLinkedQueue = " + t3); c = c * 2; } } }		2012-02-27 00:42:32 +01:00
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list	replaced all 'new String' with default encoding (missing) or UTF-8 encoding with a String generation method that uses a pre-defined Charset constant for UTF-8. This avoids a cache-lookup for the Charset object using String hashing of the String 'UTF-8'.	2011-03-07 20:36:40 +00:00
wiki	some last-minute performance hacks	2011-11-25 11:23:52 +00:00
ymark	Removed handling of components objects for URIMetadataRows.	2011-12-17 01:27:08 +01:00
BlogBoard.java	more UTF8 getBytes() performance hacks	2011-04-12 05:02:36 +00:00
BlogBoardComments.java	some last-minute performance hacks	2011-11-25 11:23:52 +00:00
BookmarkDate.java	more UTF8 getBytes() performance hacks	2011-04-12 05:02:36 +00:00
BookmarkHelper.java	memory hacks	2012-02-02 07:37:00 +01:00
BookmarksDB.java	fix for bookmark crash with possible side-effects on crawl start after	2012-01-19 23:06:09 +01:00
DidYouMean.java	fix for concurrency problem and endless loop in /suggest.json	2012-01-05 08:35:44 +01:00
Diff.java	*) renamed classes according to standard Java coding conventions	2010-11-21 01:29:32 +00:00
ListManager.java	Minor correction to prevent useless comma at beginning of string, created from list	2011-11-20 15:20:57 +00:00
MessageBoard.java	more UTF8 getBytes() performance hacks	2011-04-12 05:02:36 +00:00
Translator.java	added Ukrainian translation	2012-01-17 17:45:28 +01:00
URLAnalysis.java	refactoring:	2011-09-25 16:59:06 +00:00
URLLicense.java	ConcurrentLinkedQueue has a VERY long return time on the .size() method.	2012-02-27 00:42:32 +01:00
UserDB.java	refactoring	2011-12-16 23:59:29 +01:00
WorkTables.java	refactoring:	2011-09-25 16:59:06 +00:00