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Replace the PQ_*CACHE options with a single PQ_CACHESIZE option that you

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set equal to the number of kilobytes in your cache.  The old options are
still supported for backwards compatibility.

Submitted by:	Kelly Yancey <kbyanc@posi.net>
This commit is contained in:
John Baldwin 2000-07-04 08:55:18 +00:00
parent c8ef594c0f
commit 9a20f99adf
4 changed files with 39 additions and 27 deletions
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4
sys/conf/NOTES
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@ -74,8 +74,10 @@ options DFLDSIZ="(256*1024*1024)"
options BLKDEV_IOSIZE=8192
# Options for the VM subsystem
options PQ_CACHESIZE=512 # color for 512k/16k cache
# Deprecated options supported for backwards compatibility
#options PQ_NOOPT # No coloring
options PQ_LARGECACHE # color for 512k/16k cache
#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

1
sys/conf/options
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@ -361,6 +361,7 @@ PQ_NORMALCACHE opt_vmpage.h
PQ_MEDIUMCACHE opt_vmpage.h
PQ_LARGECACHE opt_vmpage.h
PQ_HUGECACHE opt_vmpage.h
PQ_CACHESIZE opt_vmpage.h
# Standard SMP options
SMP opt_global.h

4
sys/i386/conf/NOTES
View File

@ -74,8 +74,10 @@ options DFLDSIZ="(256*1024*1024)"
options BLKDEV_IOSIZE=8192
# Options for the VM subsystem
options PQ_CACHESIZE=512 # color for 512k/16k cache
# Deprecated options supported for backwards compatibility
#options PQ_NOOPT # No coloring
options PQ_LARGECACHE # color for 512k/16k cache
#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

57
sys/vm/vm_page.h
View File

@ -151,46 +151,53 @@ struct vm_page {
*/
/* Each of PQ_FREE, and PQ_CACHE have PQ_HASH_SIZE entries */
/* Define one of the following */
/* Backward compatibility for existing PQ_*CACHE config options. */
#if !defined(PQ_CACHESIZE)
#if defined(PQ_HUGECACHE)
#define PQ_CACHESIZE 1024
#elsif defined(PQ_LARGECACHE)
#define PQ_CACHESIZE 512
#elsif defined(PQ_MEDIUMCACHE)
#define PQ_CACHESIZE 256
#elsif defined(PQ_NORMALCACHE)
#define PQ_CACHESIZE 64
#elsif defined(PQ_NOOPT)
#define PQ_CACHESIZE 0
#else
#define PQ_CACHESIZE 128
#endif
#endif
#if PQ_CACHESIZE >= 1024
#define PQ_PRIME1 31 /* Prime number somewhat less than PQ_HASH_SIZE */
#define PQ_PRIME2 23 /* Prime number somewhat less than PQ_HASH_SIZE */
#define PQ_L2_SIZE 256 /* A number of colors opt for 1M cache */
#endif
/* Define one of the following */
#if defined(PQ_LARGECACHE)
#elsif PQ_CACHESIZE >= 512
#define PQ_PRIME1 31 /* Prime number somewhat less than PQ_HASH_SIZE */
#define PQ_PRIME2 23 /* Prime number somewhat less than PQ_HASH_SIZE */
#define PQ_L2_SIZE 128 /* A number of colors opt for 512K cache */
#endif
/*
* Use 'options PQ_NOOPT' to disable page coloring
*/
#if defined(PQ_NOOPT)
#define PQ_PRIME1 1
#define PQ_PRIME2 1
#define PQ_L2_SIZE 1
#endif
#if defined(PQ_NORMALCACHE)
#define PQ_PRIME1 5 /* Prime number somewhat less than PQ_HASH_SIZE */
#define PQ_PRIME2 3 /* Prime number somewhat less than PQ_HASH_SIZE */
#define PQ_L2_SIZE 16 /* A reasonable number of colors (opt for 64K cache) */
#endif
#if defined(PQ_MEDIUMCACHE)
#elsif PQ_CACHESIZE >= 256
#define PQ_PRIME1 13 /* Prime number somewhat less than PQ_HASH_SIZE */
#define PQ_PRIME2 7 /* Prime number somewhat less than PQ_HASH_SIZE */
#define PQ_L2_SIZE 64 /* A number of colors opt for 256K cache */
#endif
#if !defined(PQ_L2_SIZE)
#elsif PQ_CACHESIZE >= 128
#define PQ_PRIME1 9 /* Produces a good PQ_L2_SIZE/3 + PQ_PRIME1 */
#define PQ_PRIME2 5 /* Prime number somewhat less than PQ_HASH_SIZE */
#define PQ_L2_SIZE 32 /* 512KB or smaller, 4-way set-associative cache */
#define PQ_L2_SIZE 32 /* A number of colors opt for 128k cache */
#elsif PQ_CACHESIZE >= 64
#define PQ_PRIME1 5 /* Prime number somewhat less than PQ_HASH_SIZE */
#define PQ_PRIME2 3 /* Prime number somewhat less than PQ_HASH_SIZE */
#define PQ_L2_SIZE 16 /* A reasonable number of colors (opt for 64K cache) */
#else
#define PQ_PRIME1 1 /* Disable page coloring. */
#define PQ_PRIME2 1
#define PQ_L2_SIZE 1
#endif
#define PQ_L2_MASK (PQ_L2_SIZE - 1)