Re: big.LITTLE status for rk3399/rockpro64?
Greg V <[email protected]>
| Newsgroups | gmane.os.freebsd.devel.arm |
|---|---|
| Message-ID | <[email protected]> |
On Thu, Jul 30, 2020 at 10:05, Josh Howard <[email protected]> wrote: > On Thu, 30 Jul 2020 09:02:56 -0700, > William Carson via freebsd-arm wrote: >> >> >> > On Jul 28, 2020, at 10:43 AM, Vincent Milum Jr >> <[email protected]> wrote: >> > >> > The downside is that the two big cores are not fully clocking up >> to their max >> > speed, because FreeBSD doesn't have support yet to clock cores or >> groups of >> > cores independently. >> >> Is this true? I'm running r363091 on a RockPro64 with >> sysutils/powerdxx and it >> supports the different frequencies just fine: >> >> # sysctl dev.cpu.{0,1,2,3,4,5}.freq >> dev.cpu.0.freq: 1416 >> dev.cpu.1.freq: 1416 >> dev.cpu.2.freq: 1416 >> dev.cpu.3.freq: 1416 >> dev.cpu.4.freq: 1800 >> dev.cpu.5.freq: 1800 > > powerdxx definitely does help. I think the other issue is that if you > set ncpu=4, > you get get the max freq_levels of 1512 for the 4 CPUs, but when all > 6 are > enabled, it finds the highest common freq, which is 1416. > Furthermore, we only > set the big cores at 1800, but they should be 2016. Wait, "it" == stock powerd? oh sure it might not support that. I was only considering manual setting of these sysctls. re: what the maximum should be, that depends on your device tree. I have overclocked mine to 2200. _______________________________________________ [email protected] mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-arm To unsubscribe, send any mail to "[email protected]"