Cpu Speed in Mandrake


Recommended Posts

Hi,

I've been using linux for some time now.

And for about a month or 3 on this laptop.

But I just noticed something.

I was thinking about changing the cpu voltage and multiplier to have more battery time when I got to the conclusion that my linux wasn't running at full speed.

I wanted to know how fast my cpu was running so I entered this in the console:

cat /proc/sys/cp/0/speed

It just returned 0.

So I started a Windows program (WCPU) (under linux) to see my cpu speed.

And it told me I was running at 796.10 MHz :blink: .

My laptop is an Acer Aspire 1353LC

with an AMD Athlon XP-M 2400 GHz processor

using PowerNOW!

My linux version is:

Mandrake 9.2

Kernel:

2.4.22-10mdk

I might give kernel 2.6 a try later.

I've compiled it, but it has some errors when it boots.

Is there anything I can do about this???

Thanks in advance,

the Blue Squirle

Link to comment
Share on other sites

If you just noticed it and this decrease in speed is good for your battery, whats the problem :p . Yeah, actually I would just suggest recompiling the 2.4 thats works. jumping up to 2.6 with mandrake is difficult

Link to comment
Share on other sites

AMD power now is doing exactly what it supposed to. My AMD 1600+ laptop, reports 595 MHz. during idle. It reports 1400 MHz. during full load. That way it uses less power.

Link to comment
Share on other sites

Try somthing like:

echo "1" >> /proc/sys/cpu/0/speed

This will throttle the cpu one level. There should be a file under /proc/sys/cpu/0 explaining what levels the laptop can switch to.

Link to comment
Share on other sites

Am I missing something here?

I use cat /proc/cpuinfo | grep MHz to get CPU frequency... :unsure:

Link to comment
Share on other sites

TinkerO1: Powernow isn't doing what it's supposed to do because when my Linux is at full load, it still uses 796.10 MHz

I've tested this while compiling in tty 3, running top (which displays my cpu load as around 98%) in tty2 and running cat /proc/cpuinfo in tty1.

markjensen: the command you gave worked, thx, now I can see the cpu speed under linux

I'm using my laptop with the psu attached so I want it to go fast now.

Link to comment
Share on other sites

This topic is now closed to further replies.
  • Recently Browsing   0 members

    • No registered users viewing this page.