diff options
Diffstat (limited to 'sys/arch/mvme68k/include/vmparam.h')
| -rw-r--r-- | sys/arch/mvme68k/include/vmparam.h | 87 |
1 files changed, 3 insertions, 84 deletions
diff --git a/sys/arch/mvme68k/include/vmparam.h b/sys/arch/mvme68k/include/vmparam.h index c921a36633d..27c16cd6b69 100644 --- a/sys/arch/mvme68k/include/vmparam.h +++ b/sys/arch/mvme68k/include/vmparam.h @@ -1,4 +1,4 @@ -/* $OpenBSD: vmparam.h,v 1.4 1998/03/01 00:37:39 niklas Exp $ */ +/* $OpenBSD: vmparam.h,v 1.5 2001/05/05 20:56:44 art Exp $ */ /* * Copyright (c) 1988 University of Utah. @@ -127,18 +127,6 @@ #endif /* - * Boundary at which to place first MAPMEM segment if not explicitly - * specified. Should be a power of two. This allows some slop for - * the data segment to grow underneath the first mapped segment. - */ -#define MMSEG 0x200000 - -/* - * The size of the clock loop. - */ -#define LOOPPAGES (maxfree - firstfree) - -/* * The time for a process to be blocked before being very swappable. * This is a number of seconds which the system takes as being a non-trivial * amount of real time. You probably shouldn't change this; @@ -154,78 +142,9 @@ * by the page replacement algorithm. Basically this says that if you are * swapped in you deserve some resources. We protect the last SAFERSS * pages against paging and will just swap you out rather than paging you. - * Note that each process has at least UPAGES+CLSIZE pages which are not - * paged anyways (this is currently 8+2=10 pages or 5k bytes), so this - * number just means a swapped in process is given around 25k bytes. - * Just for fun: current memory prices are 4600$ a megabyte on VAX (4/22/81), - * so we loan each swapped in process memory worth 100$, or just admit - * that we don't consider it worthwhile and swap it out to disk which costs - * $30/mb or about $0.75. */ #define SAFERSS 4 /* nominal ``small'' resident set size protected against replacement */ - -/* - * DISKRPM is used to estimate the number of paging i/o operations - * which one can expect from a single disk controller. - */ -#define DISKRPM 60 - -/* - * Klustering constants. Klustering is the gathering - * of pages together for pagein/pageout, while clustering - * is the treatment of hardware page size as though it were - * larger than it really is. - * - * KLMAX gives maximum cluster size in CLSIZE page (cluster-page) - * units. Note that ctod(KLMAX*CLSIZE) must be <= DMMIN in dmap.h. - * ctob(KLMAX) should also be less than MAXPHYS (in vm_swp.c) - * unless you like "big push" panics. - */ - -#define KLMAX (4/CLSIZE) -#define KLSEQL (2/CLSIZE) /* in klust if vadvise(VA_SEQL) */ -#define KLIN (4/CLSIZE) /* default data/stack in klust */ -#define KLTXT (4/CLSIZE) /* default text in klust */ -#define KLOUT (4/CLSIZE) - -/* - * KLSDIST is the advance or retard of the fifo reclaim for sequential - * processes data space. - */ -#define KLSDIST 3 /* klusters advance/retard for seq. fifo */ - -/* - * Paging thresholds (see vm_sched.c). - * Strategy of 1/19/85: - * lotsfree is 512k bytes, but at most 1/4 of memory - * desfree is 200k bytes, but at most 1/8 of memory - */ -#define LOTSFREE (512 * 1024) -#define LOTSFREEFRACT 4 -#define DESFREE (200 * 1024) -#define DESFREEFRACT 8 - -/* - * There are two clock hands, initially separated by HANDSPREAD bytes - * (but at most all of user memory). The amount of time to reclaim - * a page once the pageout process examines it increases with this - * distance and decreases as the scan rate rises. - */ -#define HANDSPREAD (2 * 1024 * 1024) - -/* - * The number of times per second to recompute the desired paging rate - * and poke the pagedaemon. - */ -#define RATETOSCHEDPAGING 4 - -/* - * Believed threshold (in megabytes) for which interleaved - * swapping area is desirable. - */ -#define LOTSOFMEM 2 - /* * Mach derived constants */ @@ -239,8 +158,8 @@ /* virtual sizes (bytes) for various kernel submaps */ #define VM_MBUF_SIZE (NMBCLUSTERS*MCLBYTES) -#define VM_KMEM_SIZE (NKMEMCLUSTERS*CLBYTES) -#define VM_PHYS_SIZE (USRIOSIZE*CLBYTES) +#define VM_KMEM_SIZE (NKMEMCLUSTERS*PAGE_SIZE) +#define VM_PHYS_SIZE (USRIOSIZE*PAGE_SIZE) /* # of kernel PT pages (initial only, can grow dynamically) */ #define VM_KERNEL_PT_PAGES ((vm_size_t)2) /* XXX: SYSPTSIZE */ |