[Openchrome-users] Slow performance with Flash player#
Benno Schulenberg
bensberg
Mon Jun 25 12:30:07 PDT 2007
Brian Candler wrote:
> Hmm, well actually Youtube isn't bad - about least 6 fps (just
> done by counting frames while I keep one eye on a digital clock)
On a KM400 with a 2 GHz Athlon playback is smooth, at about 35% CPU
usage. For example http://www.youtube.com/watch?v=Fc6FlowLciA --
it's just like on TV, so at least 25 fps. Only the first two or
three seconds there's some stutter.
Is it not simply some memory bandwith issue?
# grep -A6 Benchmarking /var/log/Xorg.0.log
(II) VIA(0): Benchmarking video copy. Less is better.
(--) VIA(0): Timed libc YUV420 copy... 3048810. Throughput: 403.8 MiB/s.
(--) VIA(0): Timed kernel YUV420 copy... 3035232. Throughput: 405.6 MiB/s.
(--) VIA(0): Timed SSE YUV420 copy... 3010814. Throughput: 408.9 MiB/s.
(--) VIA(0): Timed MMX YUV420 copy... 2985347. Throughput: 412.4 MiB/s.
(--) VIA(0): Timed 3DNow! YUV420 copy... 3014974. Throughput: 408.3 MiB/s.
(--) VIA(0): Timed MMX2 YUV420 copy... 2995928. Throughput: 410.9 MiB/s.
Benno
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