Zander Z365 wrote: >It always shows 3401.482 for cpu Mhz. Even after I change the frequency. > >
I did some experimenting on my system today, and saw the same problem. It seems if you build an smp kernel that /proc/cpuinfo never updates. But I don't think it matters, because /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq does get updated with the correct value, and the system behaves like cpufreq is working: My time tests below were for decompressing and re-compressing (bzip2 -9) the /usr/portage/distfiles/linux-2.6.11.tar.bz2 tarball. With an smp/smt kernel: Freq Max Temp (C) Time(s) 3000Mhz 52 80.29 1500Mhz 49 150.82 With a up kernel: Freq Max Temp (C) Time(s) 3000Mhz 52 77.38 1500Mhz 49 145.10 So, the temperature, fan speed, and performance is lower at 1500Mhz than 3000Mhz, regardless of SMP/SMT support. But in every case with the SMP kernel (even booting with the 'nosmp' option), /proc/cpuinfo continues to report 3Ghz. -Richard -- gentoo-user@gentoo.org mailing list
