I was playing around with multi boot and tried ZORIN OS:
Geekbench:
Tumbleweed
https://browser.geekbench.com/v5/cpu/15888975
1208
Single-Core Score
5893
Multi-Core Score
Zorin OS (Ubuntu)
https://browser.geekbench.com/v5/cpu/15874557
1151
Single-Core Score
6483
Multi-Core Score
singlcore tumbleweed consistent better 50 point but
multicore 590 worse than ZORIN OS/ Ubuntu?
That is huge
Hi
Maybe check the output from cat /proc/cmdline to see difference, maybe mitigations are different, what kernels in use etc…
Interesting, tested here: https://browser.geekbench.com/v5/cpu/15896892
Nearly no difference:
Mageia 8: https://browser.geekbench.com/v5/cpu/15897750
1962 Single-Core Score / 11183 Multi-Core Score
Tumbleweed: https://browser.geekbench.com/v5/cpu/15897870
1959 Single-Core Score / 11336 Multi-Core Score
interesting manjaro january snapshot (noveau) is even slower
https://browser.geekbench.com/v5/cpu/15924060
1189
Single-Core Score
5180
Multi-Core Score
that is 25% difference in multicore
interesting.
with nvidia drives manjaro leads:
https://browser.geekbench.com/v5/cpu/15924215
1201
Single-Core Score
6746
Multi-Core Score
that is a huge difference. vs 5180with noveau drivers 30% difference.
Nouveau driver cannot reclock chip. I.e., driver cannot rise frequency from base level.
Nouveau drivers are for compatibility, not for performance.
With TW try to use glibc CPU feature levels.