On Monday 25 May 2009, Noah Kantrowitz wrote: > On May 25, 2009, at 1:34 AM, Frank Mehnert wrote: > > Hi, > > > > currently we are using Trac version 0.10.3 with an SQlite backend on a > > Debian/Lenny/AMD64 host mainly as bugtracker, subversion repository > > browser and Wiki engine. With our current setup we experience > > some ''database is locked'' errors each day despite the fact that > > we have the fix for #4465 applied to the trac code. Our plan was to > > upgrade to Trac 0.11 and to switch to PostgreSQL as database backend. > > > > Recent tests with trac 0.11.1-2.1 of Debian/Lenny (using a SQLite > > backend) showed a performance degradation. Someone mentioned that > > the new Genshi engine could be responsible for such a performance > > degradation, especially for bigger pages. To me it looks like it > > takes at least twice as long or more to generate a web page. > > > > My question is if this still applies or if later versions of the > > stable 0.11 branch show an improved performance. Are there any > > experiences? > > The sort version is yes, Genshi is slower in pretty much every case > than clearsilver. What kind of slowdown are you talking about? Seeing > 50ms longer to render a page seems plausible, but not 5000ms.
Right, 50ms longer would be ok. Unfortunately last time I didn't do any measurements but during the last experiment it took several seconds to render the timeline (10 days back) in the browser. After switching back to trac 0.10 this time was reduced to below 0.5 seconds. Not sure if my site.html template was properly optimized, it contains several 'match' statements and several 'select' statements. Kind regards, Frank -- Dr.-Ing. Frank Mehnert Sun Microsystems, Inc. www.sun.com
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