cpu, and debian install questions
kerry at gotss.net
Mon Nov 8 02:08:22 EST 2010
The cpufreq framework is set up on Grml with the ondemand scheduler as
When the CPU is idle, it winds the clock down to 1000mhz however you see
the frequency go up to 2.2ghz when the system goes under load.
This saves power, is cooler, and generally works well.
cpufreq-info will tell you what governors are set, and
cpufreq-set -g performance
will latch the CPU at it's highest speed.
I'm sure someone else has answered this by now but perhaps this response
will be useful for the archives.
apt-get install cpufreq-utils
will get this support in a Debian-like distribution.
On 8/11/2010 7:38 AM, Gregory Nowak wrote:
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> Hello all,
> I just got a box here, on which I'm running grml64 2010.4 off
> the cd so I can explore around, and I have a couple of questions which
> I hope someone could provide meaningful answers to:
> 1. When I look at dmesg, I see:
> [ 0.000000] Detected 2188.958 MHz processor.
> [ 0.003345] Calibrating delay loop (skipped), value calculated
> using timer frequency.. 4379.32 BogoMIPS (lpj=7296526)
> However, when I look at /proc/cpuinfo, I see this:
> processor : 0
> vendor_id : AuthenticAMD
> cpu family : 15
> model : 39
> model name : AMP Athlon(tm) 64 Processor 3700+
> stepping : 1
> cpu MHz : 1000.000
> cache size : 1024 KB
> fpu : yes
> fpu_exception : yes
> cpuid level : 1
> wp : yes
> flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge
> mca cmov pat pse36 clflush mmx fxsr sse sse2 syscall nx mmxext
> fxsr_opt lm 3dnowext 3dnow up rep_good pni lahf_lm
> bogomips : 1990.87
> TLB size : 1024 4K pages
> clflush size : 64
> cache_alignment : 64
> address sizes : 40 bits physical, 48 bits virtual
> power management: ts fid vid ttp tm stc
> Why is cpuinfo showing the cpu is 1GHz, when in fact it is a 2.2GHz
> processor? Something to do with power management? I assume that linux
> will still take full advantage of the processor, am I correct in
> assuming that?
> My second question is what is the easiest way to install debian Lenny
> 64-bit on this system without a serial port? I do have a usb to serial
> converter here, but that won't work with speakup as of now
> obviously. I know I can mess around with debootstrap under grml, but
> is there an easier way?
> Thanks in advance for any help.
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