[mythtv] [mythtv-commits] mythtv commit: r25171 by mdean
Thrash Dude
thrash.dude at gmail.com
Sat Jun 26 22:31:00 UTC 2010
On Fri, 25 Jun 2010 05:28:59 +0000 (UTC)
mythtv at cvs.mythtv.org wrote:
> Author: mdean
> Date: 2010-06-25 05:28:59 +0000 (Fri, 25 Jun 2010)
> New Revision: 25171
> Changeset: http://svn.mythtv.org/trac/changeset/25171
>
> Modified:
>
> trunk/mythtv/configure
>
> Log:
>
> configure: add "AMD Athlon(tm) II" as k8 model name for
> --enable-proc-opt
>
>
>
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I don't believe that's correct. I could be wrong, or don't understand
what's going here :)
According to gcc it's an amdfam10 or barcelona
amdfam10, barcelona
AMD Family 10h core based CPUs with x86-64 instruction set support.
(This supersets MMX, SSE, SSE2, SSE3, SSE4A, 3DNow!, enhanced
3DNow!, ABM and 64-bit instruction set extensions.)
Here's the flags for an Athlon II x4 620
vendor_id : AuthenticAMD
cpu family : 16
model : 5
model name : AMD Athlon(tm) II X4 620 Processor
stepping : 2
cpu MHz : 2612.312
cache size : 512 KB
physical id : 0
siblings : 4
core id : 3
cpu cores : 4
apicid : 3
initial apicid : 3
fpu : yes
fpu_exception : yes
cpuid level : 5
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr
pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext
fxsr_opt pdpe1gb rdtscp lm 3dnowext 3dnow constant_tsc rep_good
nonstop_tsc extd_apicid pni monitor cx16 popcnt lahf_lm cmp_legacy svm
extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw ibs skinit
wdt
Here's the flags for an x86_64 AMD Sempron with pni (K8-sse3). Not your
normal Sempron, just to compare an amdfam10 to a K8-sse3.
vendor_id : AuthenticAMD
cpu family : 15
model : 44
model name : AMD Sempron(tm) Processor 3000+
stepping : 2
cpu MHz : 1807.985
cache size : 128 KB
fpu : yes
fpu_exception : yes
cpuid level : 1
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr
pge mca cmov pat pse36 clflush mmx fxsr sse sse2 syscall nx mmxext
fxsr_opt lm 3dnowext 3dnow up rep_good pni
and here's a Phenom which you detect as barcelona.
vendor_id : AuthenticAMD
cpu family : 16
model : 2
model name : AMD Phenom(tm) 9950 Quad-Core Processor
stepping : 3
cpu MHz : 2808.614
cache size : 512 KB
physical id : 0
siblings : 4
core id : 0
cpu cores : 4
apicid : 0
initial apicid : 0
fpu : yes
fpu_exception : yes
cpuid level : 5
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr
pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext
fxsr_opt pdpe1gb rdtscp lm 3dnowext 3dnow constant_tsc rep_good pni
monitor cx16 lahf_lm cmp_legacy svm extapic cr8_legacy abm sse4a
misalignsse 3dnowprefetch osvw ibs
I've often wondered what the definition of sse4_1 is exactly in MythTV.
No AMD chip supports full sse4.1, but instead their own cherry picked
instructions, which they call sse4a?
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