Wonder why he didn't mention the correct growth factor for the geometric series, the golden ratio 1.618f. It's only not used when shift by 1 was so much cheape

Wonder why he didn't mention the correct growth factor for the geometric series, the golden ratio 1.618f. It's only not used when shift by 1 was so much cheaper than float mult. llvm's libc++ uses this grow logic instead: if (actual > 30) actual = ((actual & ~15) == actual) ? (actual + 15) : ((actual + 15) & ~15) - 1; which is actually closer to the metal, allocating a new page when needed.