No, scaling was per-core on Gutsy. I have two core 2 duo machines here, one on Gutsy and one on Hardy. Both machines when running Gutsy act the same regarding CPU scaling. I used the output from two machines to avoid swapping hard disks and rebooting.
On Gutsy each CPU had it's own cpufreq directory: # ls -l /sys/devices/system/cpu/cpu* | grep cpufreq drwxr-xr-x 4 root root 0 2008-02-05 16:48 cpufreq drwxr-xr-x 4 root root 0 2008-02-05 16:48 cpufreq On Hardy, the second CPU shares the first (I would assume the same would be true in a quad-core system) # ls -l /sys/devices/system/cpu/cpu* | grep cpufreq drwxr-xr-x 3 root root 0 Feb 5 15:24 cpufreq lrwxrwxrwx 1 root root 0 Feb 5 16:39 cpufreq -> ../../../../devices/system/cpu/cpu0/cpufreq To test scaling, I ran the command `cat /dev/urandom > /dev/null`. While this was going, I checked CPU speed On Gutsy, cores scale separately: # cat /proc/cpuinfo | grep MHz cpu MHz : 1596.000 cpu MHz : 2394.000 On Hardy they scale together: # cat /proc/cpuinfo | grep MHz cpu MHz : 2200.000 cpu MHz : 2200.000 On Gutsy you can also set a different scaling governor on a per-cpu basis (one performance, the other powersave) and it would act accordingly. -- Intel Core 2 Duo - Resume from suspend, CPU Frequency Scaling is gone on CPU1 https://bugs.launchpad.net/bugs/183033 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
