Hi All, Was doing some playing around tonight with the CPU frequency drivers in the 2.6 kernels and noticed a couple of things that I was wondering about;
1) The max frequency for the CPUs appears to be off by 3 decimal places. Originally, I had checked with cpufreq-info from the cpufrequtils package[1], and then later confirmed by checking the /sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq file by hand. The values I was getting were 502000000 (502.00 GHz) on a 500 MHz Blade 100 and 750000000 (750.00 GHz) on either CPU in a dual 750 MHz Blade 1000. I'm guessing this is a problem with how the speeds are being reported to sysfs? 2) The minimum CPU frequencies possible being reported for the Blade 100 and Blade 1000 are 62750000 and 23437500 respectively. Are these accurate (even with the possibility mentioned above being taken into account)? They seem a bit low to me (based on what I've seen from the x86 world). 3) On x86, amd64 and PPC, there exists a file called /sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_cur_freq which shows the current running frequency of the CPU. For both the IIe and III cpufreq drivers, this is missing. Is there any reason for this (like no good way to poll the CPUs) or is it just a possible change in cpufreq stuff that wasn't synced up with sparc? [1] - http://www.kernel.org/pub/linux/utils/kernel/cpufreq/cpufrequtils.html Thanks, -- Jason Wever Gentoo/Sparc Team Co-Lead
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