Yeah, I saw that. I think that is also on wikipedia. So maybe ondemand is for battery usage. It would still be nice to have conservative for plugged in situations, like a desktop.
I did try to google first, I just didn't see a clear answer. Dan On Wed, Sep 29, 2010 at 4:54 PM, Siegfried-Angel Gevatter Pujals <siegfr...@gevatter.com> wrote: > Hey, > > Google gives me this: > http://www.thinkwiki.org/wiki/How_to_make_use_of_Dynamic_Frequency_Scaling > > "The ondemand (available since 2.6.10) and conservative (since 2.6.12) > are governors based on in kernel implementations of CPU scaling > algorithms: they scale the CPU frequencies according to the needs > (like does the userspace frequency scaling daemons, but in kernel). > They differs in the way they scale up and down. The ondemand governor > switches to the highest frequency immediately when there is load, > while the conservative governor increases frequency step by step. > Likewise they behave the other way round for stepping down frequency > when the CPU is idle. The conservative governor is good for battery > powered environments on AMD64 (but may not work on older ThinkPads > like the T21). Ondemand may not work on older laptops without Enhanced > SpeedStep due to latency reasons. Anyway, for recent enough Intel CPU, > ondemand is the one recommended for power efficiency (over userspace, > and even over "powersave") by the Intel's kernel developer Arjan van > de Ven" > > -- > Siegfried-Angel Gevatter Pujals (RainCT) > Free Software Developer 363DEAE3 > -- "I'm not judgmental, I'm just excited about your quest for self improvement" -- Ubuntu-devel-discuss mailing list Ubuntu-devel-discuss@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-devel-discuss
