The -qpdf option helps to fine-tune the areas around conditional branches, so that the default choices correspond to the most likely execution paths. Sometimes instructions from the more likely execution path run before the branch, in parallel with other instructions so that there is no slowdown.
Because the -qpdf option requires some extra compilation overhead and sample execution that uses representative data, you should use it mainly near the end of the development cycle.
| Related Information: | See -qpdf Option. |