Karna@lemmy.ml to Linux@lemmy.ml · 6 days agoUbuntu 25.04 "Plucky Puffin" Development Opens - Defaulting To -O3 Optimizationswww.phoronix.comexternal-linkmessage-square8fedilinkarrow-up129arrow-down11
arrow-up128arrow-down1external-linkUbuntu 25.04 "Plucky Puffin" Development Opens - Defaulting To -O3 Optimizationswww.phoronix.comKarna@lemmy.ml to Linux@lemmy.ml · 6 days agomessage-square8fedilink
minus-squareozymandias117@lemmy.worldlinkfedilinkEnglisharrow-up7·5 days ago-O2 vs -O3 adds -fgcse-after-reload -fipa-cp-clone -floop-interchange -floop-unroll-and-jam -fpeel-loops -fpredictive-commoning -fsplit-loops -fsplit-paths -ftree-loop-distribution -ftree-partial-pre -funswitch-loops -fvect-cost-model=dynamic -fversion-loops-for-strides I don’t think any of these optimizations require more modern hardware?
minus-squarelengau@midwest.sociallinkfedilinkarrow-up1·2 days agoYeah, adding a separate microarchitecture like amd64v3 would be a separate item. They might be able to do that with amd64v3 overlay repos that only contain packages that most benefit from the newer microarchitecture.
-O2 vs -O3 adds
-fgcse-after-reload -fipa-cp-clone -floop-interchange -floop-unroll-and-jam -fpeel-loops -fpredictive-commoning -fsplit-loops -fsplit-paths -ftree-loop-distribution -ftree-partial-pre -funswitch-loops -fvect-cost-model=dynamic -fversion-loops-for-stridesI don’t think any of these optimizations require more modern hardware?
Yeah, adding a separate microarchitecture like amd64v3 would be a separate item. They might be able to do that with amd64v3 overlay repos that only contain packages that most benefit from the newer microarchitecture.