On 17 June 2018 at 03:57, Farley, Peter x23353 <[email protected]> wrote:
> Didn't think of that, but you are probably right - pipeline stalls are > quite expensive and tough to benchmark. > But pipeline stalls at least are consistent and show in a profile, even though it may not show the exact spot. I find cache effects much more frustrating as you can't tell what the sibling CPUs are doing though you share the higher level cache with them. I find the number of CPU seconds may vary a factor 2, which makes my 10% tweaking hard to do... Rob
