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    Subject[CFT] faster athlon/duron memory copy implementation - 2.5.44 vanilla Test
    Date
    Single CPU only (SMP capable)

    processor : 0
    vendor_id : AuthenticAMD
    cpu family : 6
    model : 6
    model name : AMD Athlon(TM) MP 2000+
    stepping : 2
    cpu MHz : 1680.359
    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 mp mmxext 3dnowext 3dnow
    bogomips : 3309.56

    [Notes: 2.5 seems to show slower Mhz / bogos]

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

    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)

    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: 2.5.44 vanilla

    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 21014 cycles per page
    copy_page function '2.4 non MMX' took 23435 cycles per page
    copy_page function '2.4 MMX fallback' took 23399 cycles per page
    copy_page function '2.4 MMX version' took 20983 cycles per page
    copy_page function 'faster_copy' took 11722 cycles per page
    copy_page function 'even_faster' took 12030 cycles per page
    copy_page function 'no_prefetch' took 9433 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 20766 cycles per page
    copy_page function '2.4 non MMX' took 23229 cycles per page
    copy_page function '2.4 MMX fallback' took 23187 cycles per page
    copy_page function '2.4 MMX version' took 20889 cycles per page
    copy_page function 'faster_copy' took 11654 cycles per page
    copy_page function 'even_faster' took 11967 cycles per page
    copy_page function 'no_prefetch' took 9428 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 20957 cycles per page
    copy_page function '2.4 non MMX' took 23600 cycles per page
    copy_page function '2.4 MMX fallback' took 23471 cycles per page
    copy_page function '2.4 MMX version' took 20943 cycles per page
    copy_page function 'faster_copy' took 11724 cycles per page
    copy_page function 'even_faster' took 12029 cycles per page
    copy_page function 'no_prefetch' took 9422 cycles per page

    [Note: this seems very slightly slower but more consistant then 2.4.20-pre7]

    Shawn.


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