The question of what makes a good program is not a simple one, and may not even be a proper question. Each program has to be considered on its own merits and in relation to its own surroundings.
Egoless programming is a concept introduced by Gerald Weinberg in The Psychology Of Computer Programming. The idea is that programmers must fight the natural tendency to treat their programs as part of themselves, and therefore to reject all criticism. Rather, they should do their best to treat their designs & implementations as objects independent of themselves, and to view criticism dispassionately on its merits.
This article deals with the basic understandings of the Ember build performance and also addresses how to debug performance issues using tools and visualization graphs that arise during the build time of an Ember application.