>> currently, i'm using the ondemand governor. My CPU supports the >> frequencies 800, 1800 and 2000 MHz (AMD Athlon64 Desktop with >> Cool&Quiet). The simple bash commands >> > > In my case, I have a Pentium M 1.8ghz 400 FSB. In powersave, it goes to > 1.19ghz, in conservative, it goes to 1.20GHZ and of course performance > goes to 1.8ghz if plugged. > > Conservative works well here, and so far, lt moved slowly from > frequencies, 1.2 then in 5 seconds 1.4, 2 seconds 1.8. Then it took the > CPU like 10 seconds to move back from 1.8ghz to 1.2..
Yes. Pentium M CPUs offer frequencies is 200MHz steps. And I was pretty sure, that the conservative govenor works in that case. > Mine did reach the full cpu in a moment, yours looks like it not going > over 2.0ghz. Maybe is not needing that much CPU? Running an "while true; do true; done" will result in process named "bash" that uses 100% of the cpu. The problem i see is, that the conservative govenor never considers to switch from 800MHz to 1800MHz because it's a 1000MHz jump! (i'd consider that as a bug, since the govenor is non-functional in such an environment) > If it only supports 800, 1800 and 2000 MHz, then it will only jump to > those frequencies. I use the CPU Frequency Scaling Monitor included in > gnome to switch between these options a lot. Maybe you could play with > this a bit more and see how it behaves. It does look like it might need > more frequencies, but you would need to check what does you CPU support. I would be very glad, if the conservative-govenor would switch to the three frequencies i listet. The problem is: it doesn't. AFAIK, AMD Desktop CPUs really support 3 frequencies only :-( - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
