Poul-Henning Kamp wrote:
In message <[EMAIL PROTECTED]>, John Baldwin writes:
On Monday 17 March 2008 05:01:43 am Poul-Henning Kamp wrote:
phk 2008-03-17 09:01:43 UTC
FreeBSD src repository
Modified files:
sys/i386/cpufreq est.c
Log:
Increase time we wait for things to settle to 1 millisecond,
10 microseconds is too short.
Always set the cpu to the highest frequency so that we get through
boot and don't handicap cpus where powerd(8) is not used.
Hmm, I actually consider this a feature when I'm not running powerd to use
less battery. I think we should only bump up the CPU on battery power when
using powerd so that it can be lowered again to save battery power when the
CPU is idle.
We have cpufreq enabled by default now, badly configured machines run
at 50% of rated CPU power because people don't know that they need to
enable powerd(8) on servers.
This is only going to get worse when more EnergyStar compliant servers
hit the channel.
I think setting full speed is the correct choice, if people care about
powersaving, they need to configured it, if they don't they should get
their moneys worth out of their hardware.
Perhaps make it a kernel option? But I agree that CPU should run at full
speed by default, otherwise it would break POLA for users upgrading from
previous releases.
-Maxim
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