Bugs item #2687705, was opened at 2009-03-15 15:28 Message generated for change (Tracker Item Submitted) made by Item Submitter You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=482468&aid=2687705&group_id=56967
Please note that this message will contain a full copy of the comment thread, including the initial issue submission, for this request, not just the latest update. Category: Core Group: MonetDB Common CVS Head Status: Open Resolution: None Priority: 5 Private: No Submitted By: Jan Rittinger (tsheyar) Assigned to: Peter Boncz (boncz) Summary: Performance degradation due to memory management Initial Comment: I open this bug as a reminder for memory problems in the current STABLE and HEAD versions. (All observations where made on Mac OS X 10.5.6) Running the example queries on dblp.xml (441 MB): Q0: count(/dblp//author[text()="Michael Stonebraker"]) Q1: count(/dblp/*/author[text()="Michael Stonebraker"]) leads to various observations: 1.) Release 0.24 is faster than Feb2009 2.) Release Feb2009 is faster than Nov2008 3.) Release Nov2008 is faster than HEAD (03/10/2009) 4.) Document loading is getting slower if query is run multiple times 5.) Queries are getting slower if run multiple times For more details please look into the MonetDB developers mailing list topic: [MonetDB-users] too deep recursion. A related observation is that running XMark Q11 and Q12 (sf=1) needs twice the time due to the checkin to MonetDB/src/gdk gdk_heap.mx,,1.107,1.108 on February, 5th. This problem is even more dramatic in the current HEAD version on XIRAF queries (see pathfinder wiki). ---------------------------------------------------------------------- You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=482468&aid=2687705&group_id=56967 ------------------------------------------------------------------------------ Apps built with the Adobe(R) Flex(R) framework and Flex Builder(TM) are powering Web 2.0 with engaging, cross-platform capabilities. Quickly and easily build your RIAs with Flex Builder, the Eclipse(TM)based development software that enables intelligent coding and step-through debugging. Download the free 60 day trial. http://p.sf.net/sfu/www-adobe-com _______________________________________________ Monetdb-bugs mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/monetdb-bugs
