Great idea--though I wonder how much the work would multiply if we tried to cater for the ever-evolving branch prediction, register renaming and stuff that (as far as I know) all modern CPUs do.
Roops --- "Mundus sine Caesaribus" On Sat, 23 Aug 2025, 19:57 Paul Gilmartin, < 00000014e0e4a59b-dmarc-requ...@listserv.uga.edu> wrote: > On 8/23/25 12:45, Rupert Reynolds wrote: > > Agreed we should generally look at the bigger picture, but sometimes > seeing > > something in a hot spot that stalls the instruction pipeline can be > > worthwhile, and thinking down to CPU level occasionally can help us spot > > them faster. > > ... > Decades ago there was a utility for the CDC 6600 that examined > assembly code and flagged stalls. Is thee any such for z? > > AI if necessary. > > -- > gil >
