Hi, On Sun, 29 Jun 2008, Hakan BAYINDIR <[EMAIL PROTECTED]> writes: > I'm running debian testing on a Intel Core2Quad Q6600 CPU with 4 > gigabytes of RAM for 7 months. Until 2.6.22, the kernel was scaling each > of my cores independently of each other but starting with 2.6.22, every > core is running in the same frequency. While this doesn't pose any > stability or performance issues, causes higher temprature and noise when > I run a single threaded computing intensive job. > > I tracked the cause a bit. I was able to dig upto > "/sys/devices/system/cpu/cpuX/cpufreq/affected_cpus". This file says > which CPUs should scale together. Since file is read only even to root I > think it's an unconfigurable option. I also found that cpu frequencies > are adjusted by cpufreq_acpi module and I cannot find any configuration > related to it files in my system (with my current knowledge). > > The weird thing is I'm running an exact clone of this system in my > office with a core2duo system which scales its cores independently. I > cloned my home system to the office when I was running an Athlon64, > approximately 1.5 years ago. > > If anybody can say what is wrong, is it the expected behavior, where > should I look further, or whom I can talk to? > > BTW, I'm running 2.6.24-1-686-bigmem kernel prepackaged from debian testing.
Did you solve your problem? I may recommend you to read files under linux/Documentation/cpu-freq directory. BTW, sending your /proc/config.gz might be helpful. Regards. -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
