I've measured spec2000, spec2006 as well and EEMBC for Silvermont in addition. 100->120 change gives gain for Silvermont, the results on Haswell are flat.
On Fri, Oct 31, 2014 at 3:14 PM, Eric Botcazou <ebotca...@adacore.com> wrote: >> Agreed, I think the value of 100 was set decade ago by Zdenek and me >> completely artifically. I do not recall any serious tuning of this flag. > > Are you talking bout PARAM_MAX_COMPLETELY_PEELED_INSNS here? If so, see: > https://gcc.gnu.org/ml/gcc-patches/2012-11/msg01193.html > > We have experienced performance regressions because of this arbitrary change > and bumped it back to 200 unconditionally. > > -- > Eric Botcazou
