Milian Wolff <milian.wo...@kdab.com> writes: > > perf record -b --call-graph dwarf <some binary> > perf report --branch-history --no-children --stdio > > I see predicted and iter values as before, so I think nothing is breaking. > But > I'm somewhat unsure. Can someone paste an example source code and the perf > commands to get some meaningful avg_cycles? Or does this depend on a newer > Intel CPU? I have currently only a Intel(R) Core(TM) i7-5600U CPU @ 2.60GHz > available.
Branch cycles requires at least a Skylake or Goldmont CPU, so yes. For testing on other systems you can fake them however with some variant of this patch http://lkml.iu.edu/hypermail//linux/kernel/1505.1/01135.html -Andi
