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Oh, well. It's been quite a while. I wanted to reply earlier, but then |
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kmail crashed and I lost the mail. ThenI was quite busy with other things, |
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and so on. |
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|
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Mansour Moufid wrote: |
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|
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> Hello all, |
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> |
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> On Wed, Jan 20, 2010 at 6:07 AM, Alex Schuster <wonko@×××××××××.org> |
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> wrote: |
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> > I am a little disappointed by the performance of my system. mplayer |
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> > sometimes stutters a little during the calculation phase of emerge |
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> > -DpN @world, swfdec-player does so even more. Well, sometimes even |
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> > without emerges, I guess this flash player is not coded so well. |
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> > |
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> > My system is not the fastest, silence and low power consumption was |
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> > more important for me. Still, it should be fast enough I think. I |
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> > have an AMD Athlon(tm) Dual Core Processor 4850e CPU (using -march), |
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> > 4GB of memory, an 1.5 TB drive. The whole system is encrypted |
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> > (aes-xts-plain) and LVMed. While the LVM overhead should be small, |
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> > encryption of course creates some extra load. /var/tmp/portage is an |
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> > unencrypted tmpfs volume though. kernel is 2.6.31-tuxonice. I'm |
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> > running KDE4 with desktop effects enabled (running ati-drivers), X |
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> > itself takes about 30-40% of CPU time according to top. mplayer |
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> > itself needs less than 20%. |
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> |
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> I also use LVM encryption, and mplayer plays 720p at 30 fps just fine |
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> with only the integrated Intel graphics and 1 GB of RAM. So, I suspect |
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> you are just not using the full potential of your CPU. |
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|
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Yeah, playing movies without stuttering should be no problem nowadays. |
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|
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> If you haven't already: grep flags /proc/cpuinfo; add any of the |
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> {mmx,mmext,sse,sse2,ssse3,3dnow,3dnowext} flags there along with |
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> "custom-cpuopts" to your mplayer line in /etc/portage/package.use; |
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> then re-emerge of course. |
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|
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I did that, but did not see much of a difference. |
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Anyways, this would be a workaround only, the real problem must be |
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somewhere else. With movies it's only most annoying. But also amarok is |
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interrupted. Any playing Quake3 when updatedb kicks in is no joy, too. |
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|
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> With 4GB if RAM you should probably also set swappiness to a lower |
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> value than default. |
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|
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Thanks, that was a good idea! This made the system more responsive when |
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switching desktops. The drawback, however, is when starting memory- |
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intensive applications, this takes really really long then. |
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|
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> That's all I can think of for now, good luck! |
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|
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This weekend I installed Gentoo again, this time with 64bit. And all those |
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problems are just gone. Even with [io]nice, emerges do not make mplayer |
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stutter in any way. Weird, because the setup is nearly identical - same |
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packages, same make.conf (except for compiler flags), nearly identical |
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kernel .config. I just removed 2GB, with the remaining 2GB the system is |
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running much better than with 2.75GB and 32bits. |
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|
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Whatever - I'm happy now. |
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|
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Wonko |