Linked by on Fri 23rd Sep 2005 19:13 UTC
Linux Powerscale4ppc (Power and Frequency Scaling for the IBM PowerPC 970) is an IBM free-trial emerging technology power management solution that demonstrates a power management implementation for the PPC970FX and CPC925 bridge chips on the Maple-D PC970FX evaluation platform running on Linux. This technology demonstrates how to dynamically scale the system's operating frequency from F to F/2, in order to create a cooler, more power-efficient system.
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RE: amd's stuff
by molnarcs on Sat 24th Sep 2005 01:07 UTC
molnarcs
Member since:
2005-09-10

Nice. I wonder how much energy Amd's cool & quite saves... (this on my s754 Sempron 3100+)
root@mcsaba# powerd -v -a adaptive -i 80 -r 65
idle time < 65%, increasing clock speed from 127 MHz to 382 MHz
idle time < 65%, increasing clock speed from 382 MHz to 636 MHz
idle time < 65%, increasing clock speed from 636 MHz to 891 MHz
idle time < 65%, increasing clock speed from 891 MHz to 1146 MHz
idle time < 65%, increasing clock speed from 1146 MHz to 1401 MHz
idle time < 65%, increasing clock speed from 1401 MHz to 1655 MHz
idle time < 65%, increasing clock speed from 1655 MHz to 1910 MHz
idle time < 65%, increasing clock speed from 1910 MHz to 2038 MHz
idle time > 80%, decreasing clock speed from 2038 MHz to 1910 MHz
idle time > 80%, decreasing clock speed from 1910 MHz to 1783 MHz
idle time > 80%, decreasing clock speed from 1783 MHz to 1655 MHz
idle time > 80%, decreasing clock speed from 1655 MHz to 1528 MHz
idle time > 80%, decreasing clock speed from 1528 MHz to 1401 MHz
idle time > 80%, decreasing clock speed from 1401 MHz to 1273 MHz
idle time > 80%, decreasing clock speed from 1273 MHz to 1146 MHz
idle time > 80%, decreasing clock speed from 1146 MHz to 1019 MHz
idle time > 80%, decreasing clock speed from 1019 MHz to 891 MHz
idle time > 80%, decreasing clock speed from 891 MHz to 764 MHz
idle time > 80%, decreasing clock speed from 764 MHz to 636 MHz
idle time > 80%, decreasing clock speed from 636 MHz to 509 MHz
idle time > 80%, decreasing clock speed from 509 MHz to 382 MHz
idle time > 80%, decreasing clock speed from 382 MHz to 254 MHz
idle time > 80%, decreasing clock speed from 254 MHz to 127 MHz

What happened here is that I started up Gimp. This is on FreeBSD though...

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