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28 Commits

Author SHA1 Message Date
kevlo
c74ac9adc1 getopt(3) returns -1, not EOF. 2008-02-18 03:19:25 +00:00
marck
d5c48380b2 Failing to set new frequency should not lead to powerd exiting. 
Change err(3) to warn(3) as three other cases.

Approved by:	njl, des
 2007-06-13 19:05:11 +00:00
des
2c73974f3f Back out revs 1.18 and 1.19; they were based on incorrect assumptions. 
Requested by:	nate
 2006-02-19 00:40:28 +00:00
des
733ad39b75 Look for cpu/ichss instead of cpu/p4tcc, which is i386/amd64-only. 2006-02-18 16:01:07 +00:00
des
8fe6e13e40 Load cpufreq at startup if it isn't there already. 2006-02-18 11:35:12 +00:00
des
c5944732d8 Don't use threads when there's no real reason to. 
MFC after:	2 weeks
 2006-01-03 21:32:02 +00:00
joel
7eed0b9958 s/5.5/6.0/ in HISTORY section. 
Discussed with:	ru
 2005-11-24 09:25:10 +00:00
ru
8a2652d669 -mdoc sweep. 2005-11-18 10:56:28 +00:00
pjd
59d6dffbb0 Be more consistent with the rest of the manual page. 2005-11-06 20:01:47 +00:00
njl
427aeb138a Create the devd thread after we have called daemon(). Otherwise, it would 
be killed when the parent exits.

Submitted by:	Rudolf Cejka <cejkar / fit.vutbr.cz>
 2005-10-24 18:34:54 +00:00
njl
39560838ba Whitespace fix. 2005-10-23 00:55:56 +00:00
njl
cd579e831a Set the signal handlers before creating the thread. This is so it inherits 
the parent's signal mask.  Once daemon() forked, signals would be ignored
in the child thread.  While I'm here, check the return value of daemon().
This fixes termination in the daemon case (bug introduced in last commit).

Noticed by:	Frederik Lindberg
 2005-10-20 05:12:20 +00:00
njl
d5e033e83c Use a pipe for reading devd events as another method of getting the AC line 
status.  Add a thread that waits for events on the named pipe instead of
polling the line status via apm or the ACPI sysctl.  Additionally, use
robust error handling in case devd goes away or we temporarily can't set
a frequency (i.e., passive cooling has preempted our setting).

Later, this should be improved so that if adaptive control is not being used,
we will block while waiting for AC line events, saving a little CPU.

Submitted by:	Frederik Lindberg <fli+freebsd-current/shapeshifter.se>
 2005-10-19 04:48:44 +00:00
des
953bbe6a0d Accept "maximum" and "minimum" modes as well as their abbreviations. 
MFC after:	2 weeks
 2005-09-26 12:16:27 +00:00
pjd
3d2323799f Test last minute changes, as gcc isn't too smart. 
Reported by:	Steve Kargl <sgk@troutmask.apl.washington.edu>
 2005-08-24 19:42:40 +00:00
pjd
6de559363a Add '-P' option which allows to specify pidfile. 2005-08-24 17:32:41 +00:00
bruno
16471328fb Change the default adaptive algorithm for phk's one. Thanks to phk 
and Kevin Oberman for this work.

Submitted by:	Kevin Oberman
Reviewed by:	njl
Approved by:	njl
 2005-08-24 07:52:59 +00:00
njl
b7400ec2b9 powerd(8) requires root permissions to run so notify the user if they 
try to start it without this.

Submitted by:	Philip S. Schulz
MFC after:	2 days
 2005-07-25 16:43:12 +00:00
ume
ab226d7010 Ignore EPERM from sysctl(3). It is returned when passive cooling 
is active.

Reviewed by:	njl
 2005-07-18 20:15:31 +00:00
ru
6b05ae87c7 Fixed markup. 
Approved by:	re
 2005-06-16 20:01:43 +00:00
njl
ef01f96275 Drop the default running value to 60% from 80%. Testing shows that we 
cycle too much, wasting power if we trigger a jump to full speed too
easily.  CPU-bound tasks quickly push idle below this level.
 2005-04-10 20:42:55 +00:00
njl
46d7cfdb4b Add support for recording the total energy used (in joules) when in 
verbose mode.  This is useful for profiling new adaptive algorithms
in performance (via time(1)) and total energy consumed for a given
workload.
 2005-04-10 19:02:29 +00:00
brueffer
c50bb2eb16 man page -> manual page 2005-02-27 15:49:07 +00:00
njl
a59663d2e5 Move the AC line checking code into its own function, reducing the 
ifdef __i386__ stuff for APM.  Tested as working correctly on i386 and
compile-tested on sparc64.
 2005-02-27 01:58:49 +00:00
marcel
3ebf74b8a8 Unbreak !i386 platforms. Only i386 has APM, so don't try to fallback 
on APM on other platforms.
 2005-02-27 00:23:19 +00:00
njl
2347ac87e8 Change the default levels for adaptive mode to 80% and 90%. On a system 
with moderate IO going on, system usage can hover around 65-77% even
though it would benefit from higher performance.  Typically, only truly
idle systems pass the 90% mark so only demote then.
 2005-02-26 23:22:00 +00:00
njl
91e6bfeedc Remove SRCS line since it isn't needed for single-source programs. 
Pointed out by:	ru
 2005-02-26 22:50:25 +00:00
njl
3960f7cce3 Import powerd(8), a utility for managing power consumption. Currently, it 
just uses cpufreq(4) but in the future it should also do things like spin
down disks.  This is based on the work by Colin Percival (called "estctrl").
 2005-02-26 21:17:31 +00:00