Thanks for reply, but this does not work, it is still slow.

I get some output from sysctl:
%sysctl -a |grep freq
kern.acct_chkfreq: 15
kern.timecounter.tc.i8254.frequency: 1193182
kern.timecounter.tc.ACPI-safe.frequency: 3579545
kern.timecounter.tc.HPET.frequency: 25000000
kern.timecounter.tc.TSC.frequency: 1808243242
net.inet.sctp.sack_freq: 2
debug.cpufreq.verbose: 0
debug.cpufreq.lowest: 1000
machdep.tsc_freq: 1808243242
machdep.i8254_freq: 1193182
machdep.acpi_timer_freq: 3579545
dev.cpu.0.freq: 1800
dev.cpu.0.freq_levels: 1800/35000 1600/28347 1400/24803 1200/21260 1000/17716
dev.powernow.0.freq_settings: 1800/35000 1600/28347 800/8227
dev.powernow.1.freq_settings: 1800/35000 1600/28347 800/8227
dev.cpufreq.0.%driver: cpufreq
dev.cpufreq.0.%parent: cpu0
dev.cpufreq.1.%driver: cpufreq
dev.cpufreq.1.%parent: cpu1
dev.acpi_throttle.0.freq_settings: 10000/-1 8750/-1 7500/-1 6250/-1
5000/-1 3750/-1 2500/-1 1250/-1

Any ideas, thanks.

Best wishes,
Kemian

On 23/03/2008, Oliver Herold <[EMAIL PROTECTED]> wrote:
> Hi
>
>  just a shoot into the dark, but did you set debug.cpufreq.lowest=1000 in
>  /etc/sysctl.conf? 1000 MHz is the lowest (usable) frequency of my
>  laptop.
>
>  Cheers,
>
>  Olier
>
>
>  Kemian Dang <[EMAIL PROTECTED]> wrote:
>  > Dear all,
>  >
>  > I have a Compaq laptop running FB7 stable.
>  > When I use battery, the system becomes very slow, there are even lag
>  > of the cursor.
>  > The "load average" would be 1 - 2, while the idle CPU is 99.0%.
>  > It would not change even I plug the ac power later.
>  >
>  > But if I reboot the machine whit ac power, everything would be OK.
>  >
>  > Any idea appreciated for what should I do to solve this ...
>  >
>  > Best wishes,
>  > Kemian
>
> > _______________________________________________
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>  > http://lists.freebsd.org/mailman/listinfo/freebsd-questions
>  > To unsubscribe, send any mail to "[EMAIL PROTECTED]"
>
>
>  --
>  From the Pro 350 Pocket Service Guide, p. 49, Step 5 of the
>  instructions on removing an I/O board from the card cage, comes a new
>  experience in sound:
>
>         5.  Turn the handle to the right 90 degrees.  The pin-spreading
>             sound is normal for this type of connector.
>
>
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