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On Fri, 2 Nov 2007 20:21:48 +0100 |
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Beso <givemesugarr@×××××.com> wrote: |
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> the problem with compiz/compiz fusion is that it needs a high level board to |
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> run smooth and curently. fglrx has some bugs, except for the 6+ version, |
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> that should be corrected in the new 8.43 release of this month. |
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> as for beryl, of my experience it needs at least half the resources of |
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> compiz. |
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> |
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> |
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> > I'm using a nvidia 8400GS card. Beryl performance isn't bad. But effects |
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> > tend to lag due to some reason. |
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> > I think it's related to nvidia Coolbits and/or automatic GPU Freq. Not |
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> > really sure. |
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> > Every single effect lags at start. But, if some effect is already going on |
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> > and I start another one, the new one won't lag. |
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> > This really makes me believe it's something related to GPU clock. When |
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> > computer is IDLE and I start a effect, the clock rate is LOW and effect goes |
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> > SLOW, but right after, it looks like the GPU clock rate increases and the |
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> > effect goes OK. |
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> |
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> |
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> this is the problem of the cpufreq polling mechanism. if you lauch the |
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> effect when the processor is about to poll the load then you won't have |
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> problems of slow effects. if you want a more receptive system set the timer |
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> freq in the kernel to 1000 hz and then set the polling of the cpufreq to |
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> lower values. |
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Thanks for your suggestion! |
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I've built linux with timer freq 1000Hz and also set CPUFreq scaling governor to performance. And beryl |
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continues to lag.. I don't think it's a CPU freq issue. |
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Also I'm running a dual core SMP system where I think a 1000Hz timer won't be beneficial. |
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I tried setting higher GPU clocks for 2D mode using the nvidia-settings utility and beryl is now more responsive, |
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but not enough. Maybe the transition between 2D to 3D mode is somewhat slow causing this laginess for a while. |
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> |
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> And it's not only on Beryl. I'm using XFCE with composite enabled for having |
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> > transparent windows.. Every time I move a window with transparency, the move |
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> > operation itself is SLOW on the beginning and then goes OK. |
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> |
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> |
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> same problem as before. by the way, beryl is destined to die, for what i've |
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> learned. |
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> |
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> OpenGL performance with this card is great as you can see with Tremulous and |
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> > Alien Arena games. |
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> > |
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> > I hope next nvidia drivers fixes this issue. |
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> |
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> |
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> nvidia has released drivers last week or it's about to release a new driver. |
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> for more info search www.phoronix.com and search for nvidia articles. |
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Nice.. Just waiting to help stabilize it :D |
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> |
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> -- |
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> > Angelo Arrifano AKA MiKNiX |
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> > CSE Student at UBI, Portugal |
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> > Gentoo Linux AMD64 Arch Tester |
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> > miknix@×××××.com |
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> > http://miknix.homelinux.com |
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> > PGP Pubkey online |
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> > |
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> > - - |
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> > Love is an obsessive delusion that is cured by marriage. |
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> > -- Dr. Karl Bowman |
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> > -- |
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> > gentoo-amd64@g.o mailing list |
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> > |
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> > |
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> |
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> |
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> -- |
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> dott. ing. beso |
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> |
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|
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Greetings |
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-- |
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Angelo Arrifano AKA MiKNiX |
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CSE Student at UBI, Portugal |
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Gentoo Linux AMD64 Arch Tester |
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miknix@×××××.com |
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http://miknix.homelinux.com |
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PGP Pubkey online |
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|
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- - |
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Renning's Maxim: |
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Man is the highest animal. Man does the classifying. |
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-- |
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