On 2019/06/13 20:08, mabi wrote: > ‐‐‐‐‐‐‐ Original Message ‐‐‐‐‐‐‐ > On Wednesday, June 12, 2019 10:26 PM, Stuart Henderson <s...@spacehopper.org> > wrote: > > > If you're on an old BIOS revision for the APU (more than a couple of > > months old), try updating, they have enabled "core performance boost" > > which increases speed of a single core if the others are not under > > heavy load. > > > > I haven't done network benchmarks but there is a noticable improvement > > in some other things (md5 -tt goes from 12 -> 9 seconds). > > > > To update BIOS from OpenBSD, pkg_add flashrom and download the BIOS > > version for your board (https://pcengines.github.io/). Go to serial > > console and reboot in single-user mode (boot -s), mount -a, and run > > "flashrom --programmer internal -w apuX_vXXX.rom". Then reboot back > > as normal. > > > > If you'd like to compare benchmarks, the feature can be toggled > > from the setup menu in BIOS. > > > > https://blog.3mdeb.com/2019/2019-02-14-enabling-cpb-on-pcengines-apu2/ > > Thanks Stuart for the hint, that sounds fantastic. I bought my APU4 recently > so it has a few months old BIOS (v4.0.24 to be precise) and based on the > change log it also seems to include that "core performance boost". I need to > reboot and check the BIOS settings first see if this new setting is enabled > or not by default. I have the feeling it is not enabled. Anyway I think I > will upgrade the BIOS to the latest v4.9.0.6. > > Will keep you posted as soon as I check this but right no I can't reboot the > box.
4.9.0.6 does have it enabled by default. I'm not sure about the 4.0.x releases and don't want to reboot mine to check now either :)
