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| initial state |
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By C.Zeidler - Posted on January 15, 2008 - 02:42:12 (#22407)
Current version when comment was posted: 0.1.1 |
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may be you have reboot your laptop when the cpu is still in the low frequency state? Then beos would set his clock according to the low frequency.
So for multimedia this driver is not very good (but may be in haiku).
By the way do you notice to use less power in low frequency? I'm not! But also I mostly use the laptop for coding -> low cpu usage. Maybe you only use more power when the cpu is realy working.
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| i don't understand anymore... |
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By whaka - Posted on January 14, 2008 - 19:03:09 (#22404)
Current version when comment was posted: 0.1.1 |
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now if i use the high frequency, the clock, and vlc speed up... and in low frequency (731 Mhz) it's ok... so i can say that : the bug don't now what he want lol
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| bug with vlc |
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By whaka - Posted on January 14, 2008 - 18:23:20 (#22402)
Current version when comment was posted: 0.1.1 |
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Hi, the driver work fine on my toshiba satellit S3000-214 with a tualatin 1,13 Ghz, but when the cpu freqency is low, VLC slow down in playback, lol
i'm using Dano.
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| try cpu_fix |
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By C.Zeidler - Posted on March 16, 2007 - 07:00:16 (#21435)
Current version when comment was posted: 0.1.1 |
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I tried the cpu_fix driver and do a simple rescan cpu_fix after changing the cpu state. But then process control don't show the right cpu load... Also my own callculation don't work even longer and my auto mode changing chaoticly.
Since I need process control more then a clock I will drop this isue and start something else (there is enough to do ;-) )
When I tried to execute cpu_fix with load_image(arg_c, arg_v, environ) from the deskbar it won't work. Isn't it posible to start a thread from the deskbar or what was the reason?
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| slow running clock |
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By oco - Posted on March 14, 2007 - 17:17:44 (#21429)
Current version when comment was posted: 0.1.1 |
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Maybe, you can take a look at my amd64 driver here on bebits. I use the approach suggested by mmlr to fix the clock under BeOS after each change.
I works quite well on my laptop. There is still some problems in my implementation : when the cpu speed change too frequently the clock may jump thirty years in the past or in the future. It is not too surprising as i am not an experimented kernel programmer.
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| overclock cpu - next gpu |
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By BeOS Mr X - Posted on March 12, 2007 - 23:14:12 (#21425)
Current version when comment was posted: 0.1.1 |
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I always wanted to see gpu core+mem overclock on beos. with rudolf c. permanently gone who if ever will do it?
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| slow running clock |
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By mmlr - Posted on March 10, 2007 - 10:41:12 (#21422)
Current version when comment was posted: 0.1.1 |
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For the slow running clock you could take a look at cpu_fix (http://www.bebits.com/app/3999). It does recalibrate the conversion factor that BeOS calculates at startup and which the time is based on.
You could trigger a "rescan cpu_fix" whenever you change the CPU frequency, or you could incorporate the cpu_fix sources and do it directly in the driver.
Also see http://beos.mlotz.ch/documents/cpu_fix.html for the full story about system time issues in BeOS.
Regards
Michael
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| Currently cpu speed depends only on the current cpu usage. |
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By C.Zeidler - Posted on March 9, 2007 - 03:04:33 (#21417)
Current version when comment was posted: 0.1.1 |
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I don't put the temperature into account. Is there a driver which read the temperture of the cpu?
The temperature would also be a good condition to change the cpu speed. For example if you are connected to power supply it is a better solution to only clock down if the cpu becomes hot.
In the moment the default configuration is: If the cpu is during 2 sec 95% of the time busy the cpu will run with high frequency. So if you run teapot your cpu clocked up after ~2 sec and if you close teapot the cpu clocked down again after ~2 sec.
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| cpu throttle ? |
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By BeOS Mr X - Posted on March 9, 2007 - 00:01:50 (#21416)
Current version when comment was posted: 0.1.1 |
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Is this an app that lets the user underclock, overclock or adjust clock freq as cpu gets too hot ?
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