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Date: Mon, 2 Jan 2006 12:25:58 -0800 (PST)
From: =?ISO-8859-1?Q?Mikko_Ty=F6l=E4j=E4rvi?= <mbsd@pacbell.net>
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To: Alexander Leidinger <Alexander@Leidinger.net>
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References: <20060102101653.GA65178@stud.fit.vutbr.cz>
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Cc: Divacky Roman <xdivac02@stud.fit.vutbr.cz>, current@freebsd.org
Subject: Re: AMD cache values for page colouring
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On Mon, 2 Jan 2006, Alexander Leidinger wrote:

> Divacky Roman <xdivac02@stud.fit.vutbr.cz> wrote:
>
> [no cachesize detection]
>> my CPU is:
>> CPU: AMD Athlon(tm) XP 2500+ (1834.88-MHz 686-class CPU)
>> Origin = "AuthenticAMD"  Id = 0x6a0  Stepping = 0
>> Features=0x383fbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,MMX,FXSR,SSE>
>> AMD Features=0xc0400800<SYSCALL,MMX+,3DNow+,3DNow>
>
> So the AMD64 code works (on AMD processors) but the IA32 (on AMD) fails.
> Either I did something completely wrong, or it's a small typo I do overlook
> (tomatoes on the eyes...).

Not sure it is AMD specific.

  % sysctl vm.stats.pagequeue
  vm.stats.pagequeue.prime2: 5
  vm.stats.pagequeue.prime1: 9
  vm.stats.pagequeue.cachenways: 0
  vm.stats.pagequeue.cachesize: 0
  vm.stats.pagequeue.page_colors: 32

The CPU is:
  CPU: Intel(R) Pentium(R) M processor 1.80GHz (1794.19-MHz 686-class CPU)
  Origin = "GenuineIntel"  Id = 0x6d6  Stepping = 6
  Features=0xafe9f9bf<FPU,VME,DE,PSE,TSC,MSR,MCE,CX8,SEP,MTRR,PGE,MCA,CMOV,PAT,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS,TM,PBE>
  Features2=0x180<EST,TM2>

    $.02,
    /Mikko