[email protected] has movedMar 16
After around 23 years, I think I finally made a decision to switch from #Linux to #OpenBSD. It gives me this fantastic feeling of discovering new horizons and seems much more coherent. Also has no #techbros behind it.
I might even remove Linux from main SSD and leave it only on my USB disk to play one old Windows game that I have.
It seems like the only thing I will miss is battery life on Linux. But I'm ready for this tradeoff.
Show threadzyxhere💭
@as400 OpenBSD supports that CPU?
Mar 16 at 11:02pmWeb
Show thread[email protected] has movedMar 16

@zyx

Not sure what you mean by support ?

Show threadzyxhere💭Mar 16
@as400 like does the GPU and CPU properly work? e.g they don't run at full clock speeds all the time (or only at base speeds) and does GPU hardware acceleration work for video playback and stuff
Show thread[email protected] has movedMar 17

@zyx

Look at below screenshots. CPU is scaling but it almost never goes as low as 400MHz. I guess this is because kernel is not tickless ? So, as I mentioned earlier, #OpenBSD is not as power efficient as Linux.
VAAPI works as you can see. Now, the question is whether browsers use it. I'm not sure.

Show threadkrumMar 18

@as400 @zyx the biggest issue is that Openbsd don't make difference between the Efficient and the Performance cores with these new CPU from Intel and AMD.

A demanding task could just run on the slowest core...

To add to this mess, the 185H have 3 types of cores :
6 x 4.8 GHz Intel Redwood Cove P-Core
8 x 3.8 GHz Intel Crestmont E-Core
2 x 2.5 GHz Intel Crestmont E-Core

A cool and "simple" new feature for #openbsd could be to disable some cores via sysctl

Show threadAaron 🫥🇵🇸Mar 18
@krum @as400 @zyx how do other OSes allocate work to the E- and P-cores?
Show thread[email protected] has movedMar 18

@aaronm04
@krum @zyx

I'm not 100% sure but I think it's, at least partly, done in CPU firmware.

On Linux I was mostly using e-cores and lpe-cores. I was pinning tasks like mangowc, firefox, wayland to e-cores and waybar, syncthing to lpe-cores.

That way I was getting around 7 hours using 60% of battery. Actually these CPUs can be very power efficient when not using big cores at full swing.