Category : performance

I’m reading data form a sqlite file(with spatialite) which store in local, and let’s call it DB.sqlite. I need to read all the data in DB, and store it in C++ struct which defined by myself(some data need to be processed before store by the way). The data I read from DB contains spatialite data, ..

Read more

I’m converting from Eigen matrix to my own code. While I convert it, I wondered about performance of Eigen Matrix operator+ I’ve tested with below code(Using Eigen Matrix) Eigen::MatrixXd Mat(6, 6); Mat << 698.28622975817, 7655.16788149002, 7093.64830858073, 1189.97681558377, 712.67059305653, 472.15529963803, 3170.99480060861, 791.99901137063, 756.86681982361, 4983.64051982143, 2550.95115459269, 1386.24442828679, 9502.22048838355, 1868.72604554379, 270.25076998578, 9597.43958516081, 5059.57051665142, 1492.94005559057, 344.460805029088, 4897.64395788231, 697.02676853675, 3403.85726666133, ..

Read more