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On Sun, Feb 19, 2012 at 10:59:27AM +0200, Kfir Lavi wrote |
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> I did a compilation from the start. 3 times @system and 1 time @world. |
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> I have used -march=native -mfpmath=sse and now movies do play well. |
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> I'm still not sure why I had this problem. |
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> I did use mmx and sse use flags, but did removed them. |
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> Is it possible that my gcc didn't created good efficient binary before I |
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> used recompiled world? |
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> I really don't think so. |
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It's not just the mediaplayer (mplayer/VLC/Xine/whatever). Your entire |
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system needs to be optimized. If you're playing a file from your hard |
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drive, faster disk drive access helps. If you're streaming from the |
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web, faster networking code helps. Most movies have sound. Faster alsa |
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code helps. Video uses the X Window libraries. Speeding them up helps. |
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There are a lot calls to the kernel. Speeding up the kernel helps. |
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To summarize... your system uses dozens of libraries to render a movie. |
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Optimizing one library may seem very minor, but it all adds up when you |
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optimize every library on your system. |
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-- |
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Walter Dnes <waltdnes@××××××××.org> |
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