On 25-Jun-00 Motomichi Matsuzaki wrote:
>
> Hi.
>
> ** this discussion is for i386 architectures **
>
> I think there is some unclearness on the description
> about VM subsystem coloring in NOTES (formerly called LINT).
>
> Currently,
>
># Options for the VM subsystem
>#options PQ_NOOPT # No coloring
> options PQ_LARGECACHE # color for 512k/16k cache
>#options PQ_HUGECACHE # color for 1024k/16k cache
>#options PQ_MEDIUMCACHE # color for 64k/16k cache
>#options PQ_NORMALCACHE # color for 256k/16k cache
>
>
> But, in /sys/vm/vm_page.h, PQ_PRIME1, PQ_PRIME2, PQ_L2_SIZE are
> defined as below.
>
> PQ_NOOPT defines 1/1/1 to disable coloring
> PQ_LARGECACHE defines 31/23/128 for 512k cache
> PQ_HUGECACHE defines 31/23/256 for 1M cache
> PQ_MEDIUMCACHE defines 13/7/64 for 256k cache
> PQ_NORMALCACHE defines 5/3/16 for 64k cache
>
> and, on the default, these parameters are defined as 9/5/32.
>
> NOTES has obviously incorrect description about MEDIUM and NORMAL
> case, and there are no discription about the default coloring.
>
> Yes, this situation arise from its incomprehensive name.
> I suggest that these options should be renamed as follows:
>
> currently -> candidate
> PQ_HUGECACHE PQ_CACHE1024
> PQ_LARGECACHE PQ_CACHE512
> PQ_MEDIUMCACHE PQ_CACHE256
> PQ_NORMALCACHE PQ_CACHE64
>
> and newly PQ_CACHE128 should be defined as default.
>
> Any ideas?
Sounds ok to me. Do you have any patches for this? If not,
I'll make some and see if they pass muster.
--
John Baldwin <[EMAIL PROTECTED]> -- http://www.FreeBSD.org/~jhb/
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