uvm_stat.h revision 1.9
1 /* $NetBSD: uvm_stat.h,v 1.9 1998/02/13 04:55:14 thorpej Exp $ */ 2 3 /* 4 * XXXCDC: "ROUGH DRAFT" QUALITY UVM PRE-RELEASE FILE! 5 * >>>USE AT YOUR OWN RISK, WORK IS NOT FINISHED<<< 6 */ 7 /* 8 * 9 * Copyright (c) 1997 Charles D. Cranor and Washington University. 10 * All rights reserved. 11 * 12 * Redistribution and use in source and binary forms, with or without 13 * modification, are permitted provided that the following conditions 14 * are met: 15 * 1. Redistributions of source code must retain the above copyright 16 * notice, this list of conditions and the following disclaimer. 17 * 2. Redistributions in binary form must reproduce the above copyright 18 * notice, this list of conditions and the following disclaimer in the 19 * documentation and/or other materials provided with the distribution. 20 * 3. All advertising materials mentioning features or use of this software 21 * must display the following acknowledgement: 22 * This product includes software developed by Charles D. Cranor and 23 * Washington University. 24 * 4. The name of the author may not be used to endorse or promote products 25 * derived from this software without specific prior written permission. 26 * 27 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 28 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 29 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 30 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 31 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 32 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 33 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 34 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 35 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 36 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 37 * 38 * from: Id: uvm_stat.h,v 1.1.2.4 1998/02/07 01:16:56 chs Exp 39 */ 40 41 #ifndef _UVM_UVM_STAT_H_ 42 #define _UVM_UVM_STAT_H_ 43 44 #if defined(_KERNEL) && !defined(_LKM) 45 #include "opt_uvmhist.h" 46 #endif 47 48 #include <sys/queue.h> 49 50 /* 51 * uvm_stat: monitor what is going on with uvm (or whatever) 52 */ 53 54 /* 55 * counters [XXX: maybe replace event counters with this] 56 */ 57 58 #define UVMCNT_MASK 0xf /* rest are private */ 59 #define UVMCNT_CNT 0 /* normal counter */ 60 #define UVMCNT_DEV 1 /* device event counter */ 61 62 struct uvm_cnt { 63 int c; /* the value */ 64 int t; /* type */ 65 struct uvm_cnt *next; /* global list of cnts */ 66 char *name; /* counter name */ 67 void *p; /* private data */ 68 }; 69 70 extern struct uvm_cnt *uvm_cnt_head; 71 72 /* 73 * counter operations. assume spl is set ok. 74 */ 75 76 #define UVMCNT_INIT(CNT,TYP,VAL,NAM,PRIV) { \ 77 CNT.c = VAL; \ 78 CNT.t = TYP; \ 79 CNT.next = uvm_cnt_head; \ 80 uvm_cnt_head = &CNT; \ 81 CNT.name = NAM; \ 82 CNT.p = PRIV; \ 83 } 84 85 #define UVMCNT_SET(C,V) { \ 86 (C).c = (V); \ 87 } 88 89 #define UVMCNT_ADD(C,V) { \ 90 (C).c += (V); \ 91 } 92 93 #define UVMCNT_INCR(C) UVMCNT_ADD(C,1) 94 #define UVMCNT_DECR(C) UVMCNT_ADD(C,-1) 95 96 97 /* 98 * history/tracing 99 */ 100 101 struct uvm_history_ent { 102 struct timeval tv; /* time stamp */ 103 char *fmt; /* printf format */ 104 size_t fmtlen; /* length of printf format */ 105 char *fn; /* function name */ 106 size_t fnlen; /* length of function name */ 107 u_long call; /* function call number */ 108 u_long v[4]; /* values */ 109 }; 110 111 struct uvm_history { 112 const char *name; /* name of this this history */ 113 size_t namelen; /* length of name, not including null */ 114 LIST_ENTRY(uvm_history) list; /* link on list of all histories */ 115 int n; /* number of entries */ 116 int f; /* next free one */ 117 simple_lock_data_t l; /* lock on this history */ 118 struct uvm_history_ent *e; /* the malloc'd entries */ 119 }; 120 121 LIST_HEAD(uvm_history_head, uvm_history); 122 123 #ifndef UVMHIST 124 #define UVMHIST_DECL(NAME) 125 #define UVMHIST_INIT(NAME,N) 126 #define UVMHIST_INIT_STATIC(NAME,BUF) 127 #define UVMHIST_LOG(NAME,FMT,A,B,C,D) 128 #define UVMHIST_CALLED(NAME) 129 #define UVMHIST_FUNC(FNAME) 130 #define uvmhist_dump(NAME) 131 #else 132 extern struct uvm_history_head uvm_histories; 133 134 #define UVMHIST_DECL(NAME) struct uvm_history NAME 135 136 #define UVMHIST_INIT(NAME,N) { \ 137 (NAME).name = __STRING(NAME); \ 138 (NAME).namelen = strlen((NAME).name); \ 139 (NAME).n = (N); \ 140 (NAME).f = 0; \ 141 simple_lock_init(&(NAME).l); \ 142 (NAME).e = (struct uvm_history_ent *) \ 143 malloc(sizeof(struct uvm_history_ent) * (N), M_TEMP, \ 144 M_WAITOK); \ 145 bzero((NAME).e, sizeof(struct uvm_history_ent) * (N)); \ 146 LIST_INSERT_HEAD(&uvm_histories, &(NAME), list); \ 147 } 148 149 #define UVMHIST_INIT_STATIC(NAME,BUF) { \ 150 (NAME).name = __STRING(NAME); \ 151 (NAME).namelen = strlen((NAME).name); \ 152 (NAME).n = sizeof(BUF) / sizeof(struct uvm_history_ent); \ 153 (NAME).f = 0; \ 154 simple_lock_init(&(NAME).l); \ 155 (NAME).e = (struct uvm_history_ent *) (BUF); \ 156 bzero((NAME).e, sizeof(struct uvm_history_ent) * (NAME).n); \ 157 LIST_INSERT_HEAD(&uvm_histories, &(NAME), list); \ 158 } 159 160 extern int cold; 161 162 #if defined(UVMHIST_PRINT) 163 extern int uvmhist_print_enabled; 164 #define UVMHIST_PRINTNOW(E) \ 165 do { \ 166 if (uvmhist_print_enabled) { \ 167 uvmhist_print(E); \ 168 DELAY(100000); \ 169 } \ 170 } while (0) 171 #else 172 #define UVMHIST_PRINTNOW(E) /* nothing */ 173 #endif 174 175 #define UVMHIST_LOG(NAME,FMT,A,B,C,D) { \ 176 register int i, s = splhigh(); \ 177 simple_lock(&(NAME).l); \ 178 i = (NAME).f; \ 179 (NAME).f = (i + 1) % (NAME).n; \ 180 simple_unlock(&(NAME).l); \ 181 splx(s); \ 182 if (!cold) microtime(&(NAME).e[i].tv); \ 183 (NAME).e[i].fmt = (FMT); \ 184 (NAME).e[i].fmtlen = strlen((NAME).e[i].fmt); \ 185 (NAME).e[i].fn = _uvmhist_name; \ 186 (NAME).e[i].fnlen = strlen((NAME).e[i].fn); \ 187 (NAME).e[i].call = _uvmhist_call; \ 188 (NAME).e[i].v[0] = (u_long)(A); \ 189 (NAME).e[i].v[1] = (u_long)(B); \ 190 (NAME).e[i].v[2] = (u_long)(C); \ 191 (NAME).e[i].v[3] = (u_long)(D); \ 192 UVMHIST_PRINTNOW(&((NAME).e[i])); \ 193 } 194 195 #define UVMHIST_CALLED(NAME) \ 196 { int s = splhigh(); simple_lock(&(NAME).l); \ 197 _uvmhist_call = _uvmhist_cnt++; \ 198 simple_unlock(&(NAME).l); splx(s); } \ 199 UVMHIST_LOG(NAME,"called!", 0, 0, 0, 0); 200 201 #define UVMHIST_FUNC(FNAME) \ 202 static int _uvmhist_cnt = 0; \ 203 static char *_uvmhist_name = FNAME; \ 204 int _uvmhist_call; 205 206 static __inline void uvmhist_print __P((struct uvm_history_ent *)); 207 /* shut up GCC */ 208 209 static __inline void uvmhist_print(e) 210 211 struct uvm_history_ent *e; 212 { 213 printf("%06ld.%06ld ", e->tv.tv_sec, e->tv.tv_usec); 214 printf("%s#%ld: ", e->fn, e->call); 215 printf(e->fmt, e->v[0], e->v[1], e->v[2], e->v[3]); 216 printf("\n"); 217 } 218 219 #endif /* UVMHIST */ 220 221 #endif /* _UVM_UVM_STAT_H_ */ 222
Indexes created Tue Sep 23 23:09:58 GMT 2025