Dag-Erling Smørgrav wrote:
Nate Lawson <[EMAIL PROTECTED]> writes:
Dag-Erling Smørgrav wrote:
Try running powerd with a 5000 ms polling interval. With the default
of 500 ms, it never seems to stabilize, but keeps oscillating wildly
in the 75-300 MHz range on my Dell Latitude D600.
That is bad for performance. It can then take up to 10-15 seconds to
promote back to 100% CPU when your system becomes busy.
It's not as bad for performance as me tossing the laptop out the
window in frustration because powerd keeps changing the CPU frequency
and the system freezes for just a moment every time it does.
Some drivers require interrupts disabled, but it should be for a very
brief time. acpi_perf usually generates an SMI so that may be slow for
your BIOS. Are you getting messages on console about the change timing out?
--
Nate
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