prawnpdf/prawn — pull request #379 by alexdowad (2012-08-06 15:00:14+00:00)
Title: Another ~40% speed boost for table generation

Prawn::Table::Cells#[] calls #index_cells, but it wasn't actually using the index.

I have found other small optimizations which total to maybe 10% of running time for the table generation benchmark, but I am looking for bigger fish to fry. About 60% of running time is going to wrapping text, and another 20% or so to drawing the cell borders...