Re: RPi and powerd, was: Re: RPI4 clock speeds and serial port ( temperatures idle and -j4 buildworld buildkernel )
bob prohaska <[email protected]>
| Newsgroups | gmane.os.freebsd.devel.arm |
|---|---|
| Message-ID | <[email protected]> |
On Tue, Mar 23, 2021 at 02:38:25PM -0700, Mark Millard wrote: > [This did not get sent when I wrote it. So sending way late.] > > On 2021-Mar-21, at 11:13, bob prohaska <fbsd at www.zefox.net> wrote: > > > On Sat, Mar 20, 2021 at 09:20:36PM -0700, Mark Millard wrote: > >> > >> You are getting the vast majority of the time > >> benefit from powerd use compared to my build > >> context (based on the world build times). Avoiding > >> building to allow compiling non-arm could cut > >> your time noticeably, possibly around 30 minutes > >> for world. > >> > > > > Half an hour I can wait 8-) More likely I'll botch the changes. > > > > After trying powerd on the Pi4 with success it was applied > > to Pi3 and Pi2. Powerd seemed to work well on the Pi3, but > > > > the Pi2 v1.1 stalled consistently in the building libraries > > phase. The stall was unresponsive to the debugger escape. > > After power-cycling and disabling powerd, the Pi2 picked > > up where it left off. Not sure if this is a property of > > powerd or an artifact of my setup on the Pi2, being > > 14.0-CURRENT FreeBSD 14.0-CURRENT #13 main-f5e930b369: > > executing > > make -j4 -DWITH_META_MODE buildworld > That problem seems to have gone away, at least for now. Once the system updated it seemed to run buildworld successfully with powerd turned on. > It might be that if you set the speed in /etc/sysctl.conf > instead of using powerd (so the arm running at a constant > rate), that the problem would repeat on the RPi2. > That sounds like it might help distinguish between a problem with my setup and a problem with powerd. If both sysctl acceleration and powerd acceleration cause a hang, it isn't powerd's fault. > Were you monitoring temperature on the RPi2? Voltage? > Temperature, casually, 55-60C, room below 20C. Voltage, not at all. Stick-on heat sinks but no fan. I'll simply leave powerd enabled and wait to see if the trouble comes back. Thanks for writing! bob prohaska _______________________________________________ [email protected] mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-arm To unsubscribe, send any mail to "[email protected]"