Re: [CFT] faster athlon/duron memory copy implementation - 2.4.20-pre7 Test

From: Shawn Starr (spstarr@sh0n.net)
Date: Fri Oct 25 2002 - 23:26:26 EST


A 2.5.44 test is coming in a moment :-)

processor : 0
vendor_id : AuthenticAMD
cpu family : 6
model : 6
model name : AMD Athlon(TM) MP 2000+
stepping : 2
cpu MHz : 1680.422
cache size : 256 KB
fdiv_bug : no
hlt_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 apic sep mtrr pge mca cmov pat pse36 mmx fxsr sse syscall mmxext 3dnowext 3dnow
bogomips : 3355.44

RAM is PC2100 Registered DDR 512MB
Motherboard/Chipset: A7M266-D AMD 760MPX

lspci info chipset (It's an MPX but also is MP).

00:00.0 Host bridge: Advanced Micro Devices [AMD] AMD-760 MP [IGD4-2P] System Controller (rev 11)
00:07.0 ISA bridge: Advanced Micro Devices [AMD] AMD-768 [Opus] ISA (rev 04)
00:07.3 Bridge: Advanced Micro Devices [AMD] AMD-768 [Opus] ACPI (rev 03)
00:10.0 PCI bridge: Advanced Micro Devices [AMD] AMD-768 [Opus] PCI (rev 04)

(more detail)
PCI devices found:
  Bus 0, device 0, function 0:
    Host bridge: Advanced Micro Devices [AMD] AMD-760 MP [IGD4-2P] System Controller (rev 17).
      Master Capable. Latency=32.
      Prefetchable 32 bit memory at 0xf0000000 [0xf7ffffff].
      Prefetchable 32 bit memory at 0xef800000 [0xef800fff].
      I/O at 0xe800 [0xe803].
  Bus 0, device 1, function 0:
    PCI bridge: Advanced Micro Devices [AMD] AMD-760 MP [IGD4-2P] AGP Bridge (rev 0).
      Master Capable. No bursts. Min Gnt=8.

Kernel Preformed on : 2.4.20-pre7

gcc (GCC) 3.2.1 20021011 (prerelease)
Copyright (C) 2002 Free Software Foundation, Inc.

gcc athlon.c -O3 -march=athlon-mp -mcpu=athlon-mp -falign-functions -fomit-frame-pointer
-mpreferred-stack-boundary=2 -falign-functions=4 -fschedule-insns2 -fexpensive-optimizations -o athlon

Athlon test program $Id: fast.c,v 1.6 2000/09/23 09:05:45 arjan Exp $

copy_page() tests
copy_page function 'warm up run' took 20526 cycles per page
copy_page function '2.4 non MMX' took 23249 cycles per page
copy_page function '2.4 MMX fallback' took 23114 cycles per page
copy_page function '2.4 MMX version' took 20693 cycles per page
copy_page function 'faster_copy' took 11679 cycles per page
copy_page function 'even_faster' took 12126 cycles per page
copy_page function 'no_prefetch' took 9323 cycles per page

Athlon test program $Id: fast.c,v 1.6 2000/09/23 09:05:45 arjan Exp $

copy_page() tests
copy_page function 'warm up run' took 20255 cycles per page
copy_page function '2.4 non MMX' took 23129 cycles per page
copy_page function '2.4 MMX fallback' took 23026 cycles per page
copy_page function '2.4 MMX version' took 20394 cycles per page
copy_page function 'faster_copy' took 11923 cycles per page
copy_page function 'even_faster' took 11974 cycles per page
copy_page function 'no_prefetch' took 9521 cycles per page

Athlon test program $Id: fast.c,v 1.6 2000/09/23 09:05:45 arjan Exp $

copy_page() tests
copy_page function 'warm up run' took 20459 cycles per page
copy_page function '2.4 non MMX' took 23211 cycles per page
copy_page function '2.4 MMX fallback' took 23347 cycles per page
copy_page function '2.4 MMX version' took 20305 cycles per page
copy_page function 'faster_copy' took 11944 cycles per page
copy_page function 'even_faster' took 12016 cycles per page
copy_page function 'no_prefetch' took 9313 cycles per page

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