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b1078c35 | 1 | /* |
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2 | * Copyright (c) 1980, 1986, 1989, 1993 |
3 | * The Regents of the University of California. All rights reserved. | |
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4 | * (c) UNIX System Laboratories, Inc. |
5 | * All or some portions of this file are derived from material licensed | |
6 | * to the University of California by American Telephone and Telegraph | |
7 | * Co. or Unix System Laboratories, Inc. and are reproduced herein with | |
8 | * the permission of UNIX System Laboratories, Inc. | |
86cbc46c | 9 | * |
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10 | * Redistribution and use in source and binary forms, with or without |
11 | * modification, are permitted provided that the following conditions | |
12 | * are met: | |
13 | * 1. Redistributions of source code must retain the above copyright | |
14 | * notice, this list of conditions and the following disclaimer. | |
15 | * 2. Redistributions in binary form must reproduce the above copyright | |
16 | * notice, this list of conditions and the following disclaimer in the | |
17 | * documentation and/or other materials provided with the distribution. | |
18 | * 3. All advertising materials mentioning features or use of this software | |
19 | * must display the following acknowledgement: | |
20 | * This product includes software developed by the University of | |
21 | * California, Berkeley and its contributors. | |
22 | * 4. Neither the name of the University nor the names of its contributors | |
23 | * may be used to endorse or promote products derived from this software | |
24 | * without specific prior written permission. | |
da83315a | 25 | * |
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26 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
27 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
28 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
29 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE | |
30 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
31 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
32 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
33 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
34 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
35 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
36 | * SUCH DAMAGE. | |
37 | * | |
fd88f5c5 | 38 | * @(#)param.c 8.3 (Berkeley) 8/20/94 |
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39 | */ |
40 | ||
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41 | #include <sys/param.h> |
42 | #include <sys/systm.h> | |
43 | #include <sys/socket.h> | |
44 | #include <sys/proc.h> | |
45 | #include <sys/vnode.h> | |
46 | #include <sys/file.h> | |
47 | #include <sys/callout.h> | |
48 | #include <sys/clist.h> | |
49 | #include <sys/mbuf.h> | |
50 | #include <sys/kernel.h> | |
51 | ||
52 | #include <ufs/ufs/quota.h> | |
53 | ||
7d08bbf1 | 54 | #ifdef SYSVSHM |
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55 | #include <machine/vmparam.h> |
56 | #include <sys/shm.h> | |
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57 | #endif |
58 | ||
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59 | /* |
60 | * System parameter formulae. | |
61 | * | |
62 | * This file is copied into each directory where we compile | |
63 | * the kernel; it should be modified there to suit local taste | |
64 | * if necessary. | |
65 | * | |
66 | * Compiled with -DHZ=xx -DTIMEZONE=x -DDST=x -DMAXUSERS=xx | |
67 | */ | |
68 | ||
46a9a1d7 | 69 | #ifndef HZ |
bf75e5ce | 70 | #define HZ 100 |
46a9a1d7 | 71 | #endif |
ec6f91b0 | 72 | int hz = HZ; |
bf75e5ce | 73 | int tick = 1000000 / HZ; |
b03a0fb1 | 74 | int tickadj = 30000 / (60 * HZ); /* can adjust 30ms in 60s */ |
bf75e5ce | 75 | struct timezone tz = { TIMEZONE, DST }; |
582864af | 76 | #define NPROC (20 + 16 * MAXUSERS) |
64504438 | 77 | int maxproc = NPROC; |
582864af MK |
78 | #define NTEXT (80 + NPROC / 8) /* actually the object cache */ |
79 | #define NVNODE (NPROC + NTEXT + 100) | |
ad787160 | 80 | int desiredvnodes = NVNODE; |
582864af | 81 | int maxfiles = 3 * (NPROC + MAXUSERS) + 80; |
2067e85f | 82 | int ncallout = 16 + NPROC; |
e31e5017 | 83 | int nclist = 60 + 12 * MAXUSERS; |
582864af | 84 | int nmbclusters = NMBCLUSTERS; |
80b6b780 | 85 | int fscale = FSCALE; /* kernel uses `FSCALE', user uses `fscale' */ |
ec6f91b0 | 86 | |
7d08bbf1 | 87 | /* |
582864af | 88 | * Values in support of System V compatible shared memory. XXX |
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89 | */ |
90 | #ifdef SYSVSHM | |
91 | #define SHMMAX (SHMMAXPGS*NBPG) | |
582864af MK |
92 | #define SHMMIN 1 |
93 | #define SHMMNI 32 /* <= SHMMMNI in shm.h */ | |
7d08bbf1 | 94 | #define SHMSEG 8 |
582864af | 95 | #define SHMALL (SHMMAXPGS/CLSIZE) |
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96 | |
97 | struct shminfo shminfo = { | |
98 | SHMMAX, | |
99 | SHMMIN, | |
100 | SHMMNI, | |
101 | SHMSEG, | |
102 | SHMALL | |
103 | }; | |
104 | #endif | |
105 | ||
ec6f91b0 BJ |
106 | /* |
107 | * These are initialized at bootstrap time | |
108 | * to values dependent on memory size | |
109 | */ | |
110 | int nbuf, nswbuf; | |
111 | ||
112 | /* | |
113 | * These have to be allocated somewhere; allocating | |
6f33ca1e MK |
114 | * them here forces loader errors if this file is omitted |
115 | * (if they've been externed everywhere else; hah!). | |
ec6f91b0 | 116 | */ |
ec6f91b0 BJ |
117 | struct callout *callout; |
118 | struct cblock *cfree; | |
ec6f91b0 | 119 | struct buf *buf, *swbuf; |
ec6f91b0 | 120 | char *buffers; |