Messages in this thread | | | From | Shawn Starr <> | Subject | [CFT] faster athlon/duron memory copy implementation - 2.5.44 vanilla Test | Date | Sat, 26 Oct 2002 00:45:46 -0400 |
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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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