vmmeter.h revision 1.7
1 /* $NetBSD: vmmeter.h,v 1.7 1994/06/29 06:46:16 cgd Exp $ */ 2 3 /*- 4 * Copyright (c) 1982, 1986, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by the University of 18 * California, Berkeley and its contributors. 19 * 4. Neither the name of the University nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 * 35 * @(#)vmmeter.h 8.1 (Berkeley) 6/2/93 36 */ 37 38 /* 39 * System wide statistics counters. 40 */ 41 struct vmmeter { 42 /* 43 * General system activity. 44 */ 45 unsigned v_swtch; /* context switches */ 46 unsigned v_trap; /* calls to trap */ 47 unsigned v_syscall; /* calls to syscall() */ 48 unsigned v_intr; /* device interrupts */ 49 unsigned v_soft; /* software interrupts */ 50 unsigned v_faults; /* total faults taken */ 51 /* 52 * Virtual memory activity. 53 */ 54 unsigned v_lookups; /* object cache lookups */ 55 unsigned v_hits; /* object cache hits */ 56 unsigned v_vm_faults; /* number of address memory faults */ 57 unsigned v_cow_faults; /* number of copy-on-writes */ 58 unsigned v_swpin; /* swapins */ 59 unsigned v_swpout; /* swapouts */ 60 unsigned v_pswpin; /* pages swapped in */ 61 unsigned v_pswpout; /* pages swapped out */ 62 unsigned v_pageins; /* number of pageins */ 63 unsigned v_pageouts; /* number of pageouts */ 64 unsigned v_pgpgin; /* pages paged in */ 65 unsigned v_pgpgout; /* pages paged out */ 66 unsigned v_intrans; /* intransit blocking page faults */ 67 unsigned v_reactivated; /* number of pages reactivated from free list */ 68 unsigned v_rev; /* revolutions of the hand */ 69 unsigned v_scan; /* scans in page out daemon */ 70 unsigned v_dfree; /* pages freed by daemon */ 71 unsigned v_pfree; /* pages freed by exiting processes */ 72 unsigned v_zfod; /* pages zero filled on demand */ 73 unsigned v_nzfod; /* number of zfod's created */ 74 /* 75 * Distribution of page usages. 76 */ 77 unsigned v_page_size; /* page size in bytes */ 78 unsigned v_kernel_pages;/* number of pages in use by kernel */ 79 unsigned v_free_target; /* number of pages desired free */ 80 unsigned v_free_min; /* minimum number of pages desired free */ 81 unsigned v_free_count; /* number of pages free */ 82 unsigned v_wire_count; /* number of pages wired down */ 83 unsigned v_active_count;/* number of pages active */ 84 unsigned v_inactive_target; /* number of pages desired inactive */ 85 unsigned v_inactive_count; /* number of pages inactive */ 86 }; 87 #ifdef KERNEL 88 struct vmmeter cnt; 89 #endif 90 91 /* systemwide totals computed every five seconds */ 92 struct vmtotal 93 { 94 short t_rq; /* length of the run queue */ 95 short t_dw; /* jobs in ``disk wait'' (neg priority) */ 96 short t_pw; /* jobs in page wait */ 97 short t_sl; /* jobs sleeping in core */ 98 short t_sw; /* swapped out runnable/short block jobs */ 99 long t_vm; /* total virtual memory */ 100 long t_avm; /* active virtual memory */ 101 long t_rm; /* total real memory in use */ 102 long t_arm; /* active real memory */ 103 long t_vmshr; /* shared virtual memory */ 104 long t_avmshr; /* active shared virtual memory */ 105 long t_rmshr; /* shared real memory */ 106 long t_armshr; /* active shared real memory */ 107 long t_free; /* free memory pages */ 108 }; 109 #ifdef KERNEL 110 struct vmtotal total; 111 #endif 112 113 /* 114 * Optional instrumentation. 115 */ 116 #ifdef PGINPROF 117 118 #define NDMON 128 119 #define NSMON 128 120 121 #define DRES 20 122 #define SRES 5 123 124 #define PMONMIN 20 125 #define PRES 50 126 #define NPMON 64 127 128 #define RMONMIN 130 129 #define RRES 5 130 #define NRMON 64 131 132 /* data and stack size distribution counters */ 133 unsigned int dmon[NDMON+1]; 134 unsigned int smon[NSMON+1]; 135 136 /* page in time distribution counters */ 137 unsigned int pmon[NPMON+2]; 138 139 /* reclaim time distribution counters */ 140 unsigned int rmon[NRMON+2]; 141 142 int pmonmin; 143 int pres; 144 int rmonmin; 145 int rres; 146 147 unsigned rectime; /* accumulator for reclaim times */ 148 unsigned pgintime; /* accumulator for page in times */ 149 #endif 150
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