On 2014/04/20 15:49, Kaya Saman wrote: > On 04/20/2014 03:16 PM, Stuart Henderson wrote: > >On 2014/04/20 15:11, Kaya Saman wrote: > >>On 04/20/2014 11:52 AM, Stuart Henderson wrote: > >>>On 2014-04-19, Kaya Saman <kayasa...@gmail.com> wrote: > >>>>I hope someone can help me with this... > >>>> > >>>>For some reason my fans are spinning up at 3000RPM and making a lot of > >>>>noise. I have a similar chassis m/b combo running FreeBSD 10 which runs > >>>>almost silent. > >>>> > >>>>The processor usage on this machine isn't very high at all and is even > >>>>being throttled. > >>>I had some machines with a problem like this that was introduced between > >>>5.4 and 5.5 which was tracked down to the mwait idle loop. > >>> > >>>Do you need to run MP on it? If not, and if mwait is the problem, > >>>switching to GENERIC is probably the easiest workaround. > >>> > >>Many thanks Stuart for the response. > >> > >>What's the difference between GENERIC and MP.... I'm guessing MP stands for > >>MultiProcessor? > >Yes, right. > > > >>Basically the machine is a router/firewall. Routing is only done on the > >>first core in OpenBSD but things like MySQL and Apache are multi-threaded so > >>I'd like to keep the multi-threading support if possible. > >>Not sure..... what would you suggest? > >Well this may (if it works) be a quick easy fix to quieten down the > >machine and reduce power consumption if you can live with it.. anything > >better than this is probably going to involve digging in to cpu power- > >saving states. > > > >So really it depends what's more important to you. > > > > Just did the switch: > > hw.sensors.lm2.fan2=3835 RPM > hw.sensors.lm2.fan3=3781 RPM > > > 5.5 GENERIC#46 amd64 > > The fans have got even noisier?
I guess it's a different problem then :)
