floofloof@lemmy.ca to Technology@lemmy.worldEnglish · 1 month agoWe found the Missing Performance: Zen 5 Tested with SMT Disabledwww.techpowerup.comexternal-linkmessage-square6fedilinkarrow-up11arrow-down10
arrow-up11arrow-down1external-linkWe found the Missing Performance: Zen 5 Tested with SMT Disabledwww.techpowerup.comfloofloof@lemmy.ca to Technology@lemmy.worldEnglish · 1 month agomessage-square6fedilink
minus-squareconciselyverbose@sh.itjust.workslinkfedilinkEnglisharrow-up1·1 month ago During the course of our testing, we observed that Windows 11 was scheduling workloads on the 9700X in a manner that would try to saturate a single core first, by placing workloads on each of its logical threads. 🤦♀️
minus-squareadarza@lemmy.calinkfedilinkEnglisharrow-up1·1 month agoso, basically, the os isn’t tuned for the new chips yet. the 2nd threads on smt-enabled cores are supposed to get hit last.
minus-squareconciselyverbose@sh.itjust.workslinkfedilinkEnglisharrow-up1·1 month agoIt’s an easy fix, sure. But there are 3 manufacturers for them to schedule for. It should be ready way before anything ships.
minus-squareJustin@lemmy.jlh.namelinkfedilinkEnglisharrow-up1·1 month agoit’s obviously a scheduler/p-state bug in windows, look at the Linux performance https://www.phoronix.com/review/ryzen-9600x-9700x
🤦♀️
so, basically, the os isn’t tuned for the new chips yet.
the 2nd threads on smt-enabled cores are supposed to get hit last.
It’s an easy fix, sure.
But there are 3 manufacturers for them to schedule for. It should be ready way before anything ships.
it’s obviously a scheduler/p-state bug in windows, look at the Linux performance
https://www.phoronix.com/review/ryzen-9600x-9700x