Hi, I already made I/O optimizations for Scid 4.0, I am a bit surprised there are still some pending that I missed. Please post your results after you modified the code.
Pascal 2010/10/7 Gerd Lorscheid <gerd.lorsch...@onlinehome.de>: > Hello, > > > > I had a look to the scid source code to find areas which need improvements. > > One I found and which I will fix is that the database index file at startup > is read character by character. For an actual database with 200 Megabyte > index file size this needs close to a minute. Reading it in blocks like it > is done for the game file needs not more than a second. Somebody already saw > the problem and defined the character read method inline, which is a real > good joke. I have to figure out how to define a useful file class hierarchy, > so the resulting version needs some effort. > > The other task I see is to split up tkscid.cpp. It contains 35% of the > overall cpp source code, because it implements three functionalities: > Interface for TCL/TK, application functionality, database class > functionality. There should be a class Database, a class Application and a > tkscid.cpp with the TCL/TK interface code calling them. By the way this > would also allow in future to work on multiple databases in parallel. > > > > But before I invest more time I would like to know a bit more about the > state of the SCID project. Last release was nearly one year ago, and from > then the source nearly remained unchanged. I save a lot of time when I start > to develop only for private use, so I would like to know it in advance. > > > > Regards, > > > > Gerd Lorscheid > > ------------------------------------------------------------------------------ > Beautiful is writing same markup. Internet Explorer 9 supports > standards for HTML5, CSS3, SVG 1.1, ECMAScript5, and DOM L2 & L3. > Spend less time writing and rewriting code and more time creating great > experiences on the web. Be a part of the beta today. > http://p.sf.net/sfu/beautyoftheweb > _______________________________________________ > Scid-users mailing list > Scid-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/scid-users > > ------------------------------------------------------------------------------ Beautiful is writing same markup. Internet Explorer 9 supports standards for HTML5, CSS3, SVG 1.1, ECMAScript5, and DOM L2 & L3. Spend less time writing and rewriting code and more time creating great experiences on the web. Be a part of the beta today. http://p.sf.net/sfu/beautyoftheweb _______________________________________________ Scid-users mailing list Scid-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/scid-users
