Levels of Optimization Design Source Build Compile Runtime Architecture and
algorithms (e.g. n + 1 queries) Writing fast Ruby Setting build flags (e.g. ./configure) mrbc, jrubyc, rbx compile Thanks Matz & Koichi (e.g. RUBY_GC_MALLOC_LIMIT)
algorithms (e.g. n + 1 queries) Writing fast Ruby Setting build flags (e.g. ./configure) mrbc, jrubyc, rbx compile Thanks Matz & Koichi (e.g. RUBY_GC_MALLOC_LIMIT)