Powernowd does not scale my C2D E6550 higher, even with 100% load

[elfenquetsche]

Binary package hint: powernowd

powernowd 0.97-2ubuntu4

My Intel Core 2 Duo E6550 (G0 Stepping) has two steps: 2000 and 2333 Mhz. Powernowd seems to recognize this correctly. When I have 100% load, powernowd does not enable the second step.

#powernowd
powernowd: PowerNow Daemon v0.97, (c) 2003-2006 John Clemens
powernowd: Found 2 scalable units: -- 1 'CPU' per scalable unit
powernowd: cpu0: 2000Mhz - 2333Mhz (2 steps)
powernowd: cpu1: 2000Mhz - 2333Mhz (2 steps)

System:
Ubuntu 8.04 64 bit
Intel C2D E6550 G0 Stepping
Gigabyte P35 DS3R F6 bios
2 GB Kingston DDR2 800 Ram

[jstammi (jstammi)]

I can confirm this for Karmic x64 using Phenom X4 925 on GA-MA78G-DS3H.

I upgraded my system to this configuration and wondered the cpu frequency stays for 800Mhz while running prime95 with 4 load threads.

Stopping powernowd immediately raised frequencies to 2800Mhz (as expected). Starting again lowered frequencies to 800Mhz again.

Though the 4 power levels are detected afais correctly:
$ cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies
2800000 2100000 1600000 800000

And for short time periods one can see the cpu frequencies on single cpu increases to 2800Mhz, too. But with prime95 running I would expect highest frequency all the time.

Searching available packages a bit I found the package powersaved to replace powernowd. After installation of this cpu frequencies now behave as expected.

I'm not sure if the powernowd was installed by default - it might have happened that it was installed on my request (while looking for hardware sensors support).

[Phillip Susi (psusi)]

The powernowd package is obsolete, please do not use it. CPU frequency scaling is now handled by the kernel, so if you still have issues on a modern release, file a bug against the linux package.

[Steve Langasek (vorlon)]

This is not an appropriate way to declare a package "obsolete". If you think a package should not be used, file a bug to get it removed from the archive and *then* invalidate the bugs.

[Phillip Susi (psusi)]

This package is obsolete and has been removed from the archive. Closing associated bugs.