vmmeter.h revision 1.5
1 /*- 2 * Copyright (c) 1982, 1986, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by the University of 16 * California, Berkeley and its contributors. 17 * 4. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 * from: @(#)vmmeter.h 8.1 (Berkeley) 6/2/93 34 * $Id: vmmeter.h,v 1.5 1994/05/21 03:52:22 cgd Exp $ 35 */ 36 37 /* 38 * System wide statistics counters. 39 */ 40 struct vmmeter { 41 /* 42 * General system activity. 43 */ 44 unsigned v_swtch; /* context switches */ 45 unsigned v_trap; /* calls to trap */ 46 unsigned v_syscall; /* calls to syscall() */ 47 unsigned v_intr; /* device interrupts */ 48 unsigned v_soft; /* software interrupts */ 49 unsigned v_faults; /* total faults taken */ 50 /* 51 * Virtual memory activity. 52 */ 53 unsigned v_lookups; /* object cache lookups */ 54 unsigned v_hits; /* object cache hits */ 55 unsigned v_vm_faults; /* number of address memory faults */ 56 unsigned v_cow_faults; /* number of copy-on-writes */ 57 unsigned v_swpin; /* swapins */ 58 unsigned v_swpout; /* swapouts */ 59 unsigned v_pswpin; /* pages swapped in */ 60 unsigned v_pswpout; /* pages swapped out */ 61 unsigned v_pageins; /* number of pageins */ 62 unsigned v_pageouts; /* number of pageouts */ 63 unsigned v_pgpgin; /* pages paged in */ 64 unsigned v_pgpgout; /* pages paged out */ 65 unsigned v_intrans; /* intransit blocking page faults */ 66 unsigned v_reactivated; /* number of pages reactivated from free list */ 67 unsigned v_rev; /* revolutions of the hand */ 68 unsigned v_scan; /* scans in page out daemon */ 69 unsigned v_dfree; /* pages freed by daemon */ 70 unsigned v_pfree; /* pages freed by exiting processes */ 71 unsigned v_zfod; /* pages zero filled on demand */ 72 unsigned v_nzfod; /* number of zfod's created */ 73 /* 74 * Distribution of page usages. 75 */ 76 unsigned v_page_size; /* page size in bytes */ 77 unsigned v_kernel_pages;/* number of pages in use by kernel */ 78 unsigned v_free_target; /* number of pages desired free */ 79 unsigned v_free_min; /* minimum number of pages desired free */ 80 unsigned v_free_count; /* number of pages free */ 81 unsigned v_wire_count; /* number of pages wired down */ 82 unsigned v_active_count;/* number of pages active */ 83 unsigned v_inactive_target; /* number of pages desired inactive */ 84 unsigned v_inactive_count; /* number of pages inactive */ 85 }; 86 #ifdef KERNEL 87 struct vmmeter cnt; 88 #endif 89 90 /* systemwide totals computed every five seconds */ 91 struct vmtotal 92 { 93 short t_rq; /* length of the run queue */ 94 short t_dw; /* jobs in ``disk wait'' (neg priority) */ 95 short t_pw; /* jobs in page wait */ 96 short t_sl; /* jobs sleeping in core */ 97 short t_sw; /* swapped out runnable/short block jobs */ 98 long t_vm; /* total virtual memory */ 99 long t_avm; /* active virtual memory */ 100 long t_rm; /* total real memory in use */ 101 long t_arm; /* active real memory */ 102 long t_vmshr; /* shared virtual memory */ 103 long t_avmshr; /* active shared virtual memory */ 104 long t_rmshr; /* shared real memory */ 105 long t_armshr; /* active shared real memory */ 106 long t_free; /* free memory pages */ 107 }; 108 #ifdef KERNEL 109 struct vmtotal total; 110 #endif 111 112 /* 113 * Optional instrumentation. 114 */ 115 #ifdef PGINPROF 116 117 #define NDMON 128 118 #define NSMON 128 119 120 #define DRES 20 121 #define SRES 5 122 123 #define PMONMIN 20 124 #define PRES 50 125 #define NPMON 64 126 127 #define RMONMIN 130 128 #define RRES 5 129 #define NRMON 64 130 131 /* data and stack size distribution counters */ 132 unsigned int dmon[NDMON+1]; 133 unsigned int smon[NSMON+1]; 134 135 /* page in time distribution counters */ 136 unsigned int pmon[NPMON+2]; 137 138 /* reclaim time distribution counters */ 139 unsigned int rmon[NRMON+2]; 140 141 int pmonmin; 142 int pres; 143 int rmonmin; 144 int rres; 145 146 unsigned rectime; /* accumulator for reclaim times */ 147 unsigned pgintime; /* accumulator for page in times */ 148 #endif 149
Indexes created Sun Sep 21 15:09:59 GMT 2025