On Wed, 2012-04-25 at 12:29 +0200, Andreas Schwab wrote: > Benjamin Herrenschmidt <b...@kernel.crashing.org> writes: > > > Also, does the new driver properly react to load ? > > The old driver keeps the cpu fans running at 300 rpm (lowest speed?) > for much longer when the cpus are put busy. Only when the cpus are back > idle it speeds them up to 1200 rpm or more for some time depending on > how long the cpus were busy. The new driver is faster at speeding up > the fans to around 800 rpm when cpus get busy, and keeps them running > longer at that speed, but doesn't appear to select much higher speeds. > > The old driver appears to be better suited to desktops, whereas the new > driver is probably better for servers.
That's odd... as I said, the algorithm is supposed to be the same... > But the most annoying sound appears to be coming from the slots fan. Constant or changing ? The slots fan is set to a fixed speed, which I thought was constant (well, I "tickle" it a bit but roughly it's constant). Or is that not the case for you ? Darwin has an algorithm for it based on getting some data from the video driver in the AGP slot, but I don't have that. Cheers, Ben. _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
