KeeperOfThePizza Posted January 22, 2009 Share Posted January 22, 2009 Has anyone else noticed that there system runs hotter when running Ubuntu with Compiz? I'm wondering why that is? could it be maybe cause of Vista's superfetch? Link to comment Share on other sites More sharing options...
HawkMan Posted January 22, 2009 Share Posted January 22, 2009 Nothing to do with superfetch, just a less optimied graphics engine with taxes your cpu and battery a lot more. Compiz does neat stuff, but it's still coded by enthusiasts and hobbyists, not proffessionals who get paid to sit and do it all day long. Link to comment Share on other sites More sharing options...
Skulltrail Posted January 22, 2009 Share Posted January 22, 2009 Superfetch is a cache-like feature for faster performance by pre-loading common applications, I doubt it has much of an effect on ambient temps. I do not think Ubuntu has a power-saving feature where the frequency of CPU usage is lowered over a certain amount of time. Vista surely has it. (Screensaver config) EDIT: If the frequency is always at 100%, the speed is kept the same and thus more heat. Link to comment Share on other sites More sharing options...
KeeperOfThePizza Posted January 22, 2009 Author Share Posted January 22, 2009 So your basically saying that Ubuntus "Compiz" is not optimized thus leading to higher temps? Link to comment Share on other sites More sharing options...
fix-this! Posted January 22, 2009 Share Posted January 22, 2009 Has anyone else noticed that there system runs hotter when running Ubuntu with Compiz? I'm wondering why that is? could it be maybe cause of Vista's superfetch? yes i noticed my temps spiked with linux at times. ive had no issues so far in windows 7 though ! Link to comment Share on other sites More sharing options...
Growled Member Posted January 22, 2009 Member Share Posted January 22, 2009 I believe I read somewhere where it is a problem with the Ubuntu kernel. Don't quote me on that. Ubuntu does run very hot, however, with or without Compiz. Link to comment Share on other sites More sharing options...
Dance. Posted January 22, 2009 Share Posted January 22, 2009 ^From what he said, yes that's what he meant. Link to comment Share on other sites More sharing options...
tsupersonic Posted January 22, 2009 Share Posted January 22, 2009 I definitely notice a difference in temperatures between XP/Vista/7 vs Linux. Windows always runs cooler on my laptop. Linux even with CPU scaling runs terribly hot. Link to comment Share on other sites More sharing options...
ichi Posted January 22, 2009 Share Posted January 22, 2009 I do not think Ubuntu has a power-saving feature where the frequency of CPU usage is lowered over a certain amount of time. Vista surely has it. (Screensaver config) I don't know how Ubuntu is set up in that aspect but linux per se has supported dynamic frequency scaling (both in kernel and through daemons) for a long time already. Maybe Ubuntu is, for some reason, not taking proper advantage of that. Link to comment Share on other sites More sharing options...
markwolfe Veteran Posted January 23, 2009 Veteran Share Posted January 23, 2009 *buntu works fine for CPU frequency scaling. That is half-scaled from the 2400MHz normal full speed. And you can see temps are cool. Link to comment Share on other sites More sharing options...
ichi Posted January 23, 2009 Share Posted January 23, 2009 *buntu works fine for CPU frequency scaling. Maybe it depends on the cpu brand/model, and what frequency scaling governor is being used :huh: Anyway, my laptop at work runs cool too with ubuntu (+ compiz). Link to comment Share on other sites More sharing options...
markwolfe Veteran Posted January 24, 2009 Veteran Share Posted January 24, 2009 I dunno. I didn't install or config anything special. It just set itself up for me that way. I found I can shut it off with the "powernowd" daemon, if that is of any assistance to anyone looking into what is different with their install. Link to comment Share on other sites More sharing options...
Recommended Posts