the war stories briefly mentioned in the footnotes of the book, are very interesting too.
for example, one of them is about a team that speeded up the run time of a quicksort implementation on a supercomputer by a factor of a thousand times (yes, times, IIRC, not percent), by doing successive optimisations at many layers of the stack, from high level algorithms and data structures, down to the hardware.
for example, one of them is about a team that speeded up the run time of a quicksort implementation on a supercomputer by a factor of a thousand times (yes, times, IIRC, not percent), by doing successive optimisations at many layers of the stack, from high level algorithms and data structures, down to the hardware.