22.10.2010, 19:23, "Geoffrey Hutchison" <ge...@geoffhutchison.net>: >> When OpenBabel is built with USING_DYNAMIC_LIBS, constructor of >> OBConversion causes >> reading of all format plugins from disk and loading them into memory. This >> introduces significant >> start up time penalty > > This has been discussed several times. From a raw benchmarking performance, > there is a delay, particularly on short runs (e.g., translate benzene). But > for most users, the wait is almost imperceptible -- maybe 0.1s. On long runs > (e.g., translate a 10MB SD file, generate 3D coordinates, etc) the penalty is > really a tiny fraction of the performance issue. > > That's not to say that we shouldn't work out a better solution for OB-3, but > it hasn't been a high priority fix. We can get a much bigger performance > improvement in other areas, like calculating valence or improving the SMARTS > parser.
I'm thinking more about GUI application like Avogadro (it has similar problem with plugins). About 5 Mb of memory is wasted for unused format plugins while application is running. If debug build is running, replace 5 Mb with 60 Mb. Also, untrusted code may be accidentally executed if someone added fake plugin into directory -- Regards, Konstantin ------------------------------------------------------------------------------ Nokia and AT&T present the 2010 Calling All Innovators-North America contest Create new apps & games for the Nokia N8 for consumers in U.S. and Canada $10 million total in prizes - $4M cash, 500 devices, nearly $6M in marketing Develop with Nokia Qt SDK, Web Runtime, or Java and Publish to Ovi Store http://p.sf.net/sfu/nokia-dev2dev _______________________________________________ OpenBabel-Devel mailing list OpenBabel-Devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/openbabel-devel
