NAME¶
longrun —
Transmeta(TM) Crusoe(TM)
LongRun(TM) support
SYNOPSIS¶
LongRun support is a collection of power saving modes for the Transmeta Crusoe
chips, similar in scope to Intel's SpeedStep. The following
sysctl(8) MIBs control the different CPU modes:
| Name |
Type |
Changeable |
Description |
| hw.crusoe.longrun |
integer |
yes |
LongRun mode: |
|
|
|
0: minimum frequency mode |
|
|
|
1: power-saving mode |
|
|
|
2: performance mode |
|
|
|
3: maximum frequency mode |
| hw.crusoe.frequency |
integer |
no |
Current frequency (MHz). |
| hw.crusoe.voltage |
integer |
no |
Current voltage (mV). |
| hw.crusoe.percentage |
integer |
no |
Processing performance (%). |
EXAMPLES¶
Print the current status:
% sysctl hw.crusoe
To set LongRun mode to performance oriented variable frequency mode (less power
savings):
# sysctl hw.crusoe.longrun=2
HISTORY¶
The Transmeta(TM) Crusoe(TM) LongRun(TM) support first appeared in
FreeBSD 4.4.
AUTHORS¶
LongRun support and this manual page were written by
Tamotsu
HATTORI ⟨athlete@kta.att.ne.jp⟩ and
Mitsuru IWASAKI
⟨iwasaki@FreeBSD.org⟩.
