[FFmpeg-devel] Anybody has a Core 2? [PATCH] Small SSSE3 optimization

[Guillaume POIRIER]

Hi,

On 5/9/07, Zuxy Meng <zuxy.meng at gmail.com> wrote:
> Hi,
>
> 2007/5/8, Zuxy Meng <zuxy.meng at gmail.com>:
> > Hi,
> >
> > Attached patch makes use of SSSE3 instruction pabsw to calculate the
> > absolute value of packed words. Just for fun. And I don't have a SSSE3
> > capable CPU so hopefully someone with a Core 2 can help test it to
> > ensure it doesn't break anything (better with benchmarks of course:-)
> > ).
>
>
> Updated patch against curren SVN HEAD. Full test passed on MMX2. Of
> course it still needs testing under Core 2.

cat /proc/cpuinfo
processor       : 0
vendor_id       : GenuineIntel
cpu family      : 6
model           : 15
model name      : Intel(R) Xeon(R) CPU            5130  @ 2.00GHz
stepping        : 6
cpu MHz         : 2000.055
cache size      : 4096 KB
physical id     : 0
siblings        : 2
core id         : 0
cpu cores       : 2
fpu             : yes
fpu_exception   : yes
cpuid level     : 10
wp              : yes
flags           : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge
mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall
nx lm constant_tsc pni monitor ds_cpl vmx tm2 cx16 xtpr lahf_lm
bogomips        : 4003.24
clflush size    : 64
cache_alignment : 64
address sizes   : 36 bits physical, 48 bits virtual

[...]

make codectest passes, make test passes, make fulltest passes.

\o/ !!

Guillaume
-- 
Rich, you're forgetting one thing here: *everybody* except you is
stupid.
    M?ns Rullg?rd