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qole is offline qole
2009-06-30 , 21:17
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#41
Thanks for the explanation, Matan.

There is a very noticeable improvement in speed when running CPU-intensive applications, so the CPU must be throttling down even when there are tasks running. It would be nice if there were a setting between "performance" (always full speed) and "on-demand" (throttling at first opportunity).

Even if there is some impact on battery life, turning off the CPU throttle is a "cheap" and "easy" way to get some more speed for demanding tasks.

Certainly easier than putting in a new CPU or trying to "overclock" it.
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Last edited by qole; 2009-06-30 at 21:20.
 
Matan is offline Matan
2009-06-30 , 21:47
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#42
The ondemand governor is tunable. See parameters in the directory /sys/devices/system/cpu/cpu0/cpufreq/ondemand/.

It might be possible to improve performance and still keep most of the power saving features with a slight tuning.

You can see here for an explanation, though it is for a slightly older kernel than 2.6.21:
http://ftp.kernel.org/pub/linux/kern...mand-paper.pdf

There is also the conservative governor which is also changing frequency according to demand, but with a different algorithm.

Before there was ondemand governor (in kernel), there were a few userspace daemons (powernowd, cpufreqd, etc.). For example, cpufreqd allows setting speed by running appliacations.
 

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lma is offline lma
2009-07-01 , 00:42
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#43
Originally Posted by ioioio View Post
Why is everything in Linux in command line? This is one of the reasons why I don't have Linux on every PC I own and why Linux has yet to get beyond the geek community.
Do read In the Beginning was the Command Line when you have an hour or so to spare.
 

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timsamoff is offline timsamoff
2009-07-01 , 00:49
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#44
Originally Posted by lma View Post
Do read In the Beginning was the Command Line when you have an hour or so to spare.
I like your taste in authors.

Tim
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FRZ is offline FRZ
2009-07-01 , 04:05
Posts: 367 | Thanked: 47 times | Joined on Nov 2008 @ Brooklyn, NY
#45
Originally Posted by lma View Post
Do read In the Beginning was the Command Line when you have an hour or so to spare.
I think I have been reading more than an hour and I am not even half way through yet, still an interesting read.
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debernardis is offline debernardis
2009-07-01 , 04:13
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#46
Don't be scared to run with the performance governor - I do at all times and my tablet has very long battery duration and is in perfect health.
I've modified Slidelock (it's in python so it's easy to change) so that each time I open the sliding keyboard it goes in performance mode, and when I close it, goes back to ondemand. So, less battery draining when I don't use it. The thread is here http://talk.maemo.org/showthread.php?p=295759
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ioioio is offline ioioio
2009-07-01 , 18:39
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#47
Originally Posted by lma View Post
Do read In the Beginning was the Command Line when you have an hour or so to spare.
I'm probably going to be exiled from the Maemo/Linux community for this post, but here it goes. Ideally, you should never have to go into the command line for any system or application settings (the only exceptions I can think of is writing scripts) Firstly, it's not user friendly and is going to turn off 80% of non-geeks. Secondly, there is no reason for it, not any that I can think of. If it's worth putting into the command line, it's worth putting a GUI on it. If a GUI is too much trouble, then have a kind of "system:config" page similar to the Firefox "about:config" page.
 

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qole is offline qole
2009-07-01 , 18:49
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#48
ioioio: I think that's the philosophy of Microsoft Windows.

I happen to agree, but I have resigned myself to the fact that most advanced Linux users seem to like the command line.

To me, the command line is a place to try stuff out, and when you have it figured out, then you write a script and put a GUI on it so you don't have to use the command line to do that task again.
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javispedro is offline javispedro
2009-07-01 , 18:54
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#49
In fact, ioioio's opinion really makes sense in the tablet, where going to the CLI usually means sliding the keyboard out, often interrupting your workflow.
(in my opinion it makes less sense in desktop; my hands spend most of the time over the keyboard and not near the mouse)
 

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gokuman56 is offline gokuman56
2009-07-01 , 19:04
Posts: 276 | Thanked: 37 times | Joined on Jun 2009
#50
Originally Posted by qole View Post
Thanks for the explanation, Matan.

There is a very noticeable improvement in speed when running CPU-intensive applications, so the CPU must be throttling down even when there are tasks running. It would be nice if there were a setting between "performance" (always full speed) and "on-demand" (throttling at first opportunity).

Even if there is some impact on battery life, turning off the CPU throttle is a "cheap" and "easy" way to get some more speed for demanding tasks.

Certainly easier than putting in a new CPU or trying to "overclock" it.
there is a way to change the settings, download advanced power and then go to cpu policy at the status bar and set performance to whatever you like
Last edited by gokuman56; 2009-07-01 at 19:11.
 

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