[Mplayer-users] Duron compilation
nickols_k at mail.ru
Sun Jun 17 11:00:17 CEST 2001
Hi, Jindrich Kolorenc!
On 2001-06-16 20:16:34 you wrote:
>> >I have Duron processor, which ./configure script detects. On the next line
>> >there is 'Optimizing to ... k6'. Is that correct? If yes what is k7
>> >processor then.
>> Could you print us your /proc/cpuinfo?
>processor : 0
>vendor_id : AuthenticAMD
>cpu family : 6
>model : 3
>model name : AMD Duron(tm) Processor
>stepping : 0
>cpu MHz : 599.721
>cache size : 64 KB
>fdiv_bug : no
>hlt_bug : no
>sep_bug : no
>f00f_bug : no
>coma_bug : no
>fpu : yes
>fpu_exception : yes
>cpuid level : 1
>wp : yes
>flags : fpu vme de pse tsc msr pae mce cx8 sep mtrr pge mca cmov
>pat pse36 psn mmxext mmx fxsr 3dnowext 3dnow
>bogomips : 1196.03
>> Also tell us what keys of configure you use?
>Oh, I don't understand what I am asked for. Maybe my english is not good
>enough. I just type './configure'
>Arpi wrote about gcc. Maybe it is old to support something better than k6.
>I use gcc 2.95.3.
Yes, original 2.95.3 doesn't support -march=athlon -mcpu=athlon switches.
Try latest CVS version. I've done some changes in configure. Now you should see:
Optimizing to ... pentiumpro instead of k6. PPro optimization
is much better of k6 since in this case gcc will produce
extended instruction set to binary output (CMOVxx FCMOVxx)
>And one additional question: Could someone tell me what the optimizing I
>am asking about mean? Is it optimization of the C code or also throwing
>out some of your assembler code?
If configure shows you:
Checking for 3dnow support ... yes
Checking for 3dnowex support ... yes
it means that from assembler part you will have full k7-3dnow support.
Optimizing to ... $proc
means only C level optimization.
Best regards! Nick (2001-06-17 08:53:09)
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