1 /*- 2 * Copyright (c) 1982, 1986 The Regents of the University of California. 3 * 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 * @(#)vmmeter.h 7.3 (Berkeley) 5/5/91 34 */ 35 36 /* 37 * Virtual memory related instrumentation 38 */ 39 struct vmmeter 40 { 41 #define v_first v_swtch 42 unsigned v_swtch; /* context switches */ 43 unsigned v_trap; /* calls to trap */ 44 unsigned v_syscall; /* calls to syscall() */ 45 unsigned v_intr; /* device interrupts */ 46 unsigned v_soft; /* software interrupts */ 47 unsigned v_pdma; /* pseudo-dma interrupts */ 48 unsigned v_pswpin; /* pages swapped in */ 49 unsigned v_pswpout; /* pages swapped out */ 50 unsigned v_pgin; /* pageins */ 51 unsigned v_pgout; /* pageouts */ 52 unsigned v_pgpgin; /* pages paged in */ 53 unsigned v_pgpgout; /* pages paged out */ 54 unsigned v_intrans; /* intransit blocking page faults */ 55 unsigned v_pgrec; /* total page reclaims */ 56 unsigned v_xsfrec; /* found in free list rather than on swapdev */ 57 unsigned v_xifrec; /* found in free list rather than in filsys */ 58 unsigned v_exfod; /* pages filled on demand from executables */ 59 unsigned v_zfod; /* pages zero filled on demand */ 60 unsigned v_vrfod; /* fills of pages mapped by vread() */ 61 unsigned v_nexfod; /* number of exfod's created */ 62 unsigned v_nzfod; /* number of zfod's created */ 63 unsigned v_nvrfod; /* number of vrfod's created */ 64 unsigned v_pgfrec; /* page reclaims from free list */ 65 unsigned v_faults; /* total faults taken */ 66 unsigned v_scan; /* scans in page out daemon */ 67 unsigned v_rev; /* revolutions of the hand */ 68 unsigned v_seqfree; /* pages taken from sequential programs */ 69 unsigned v_dfree; /* pages freed by daemon */ 70 unsigned v_fastpgrec; /* fast reclaims in locore */ 71 #ifdef tahoe 72 unsigned v_fpe; /* floating point emulation traps */ 73 unsigned v_align; /* alignment emulation traps */ 74 #endif 75 #define v_last v_fastpgrec 76 unsigned v_swpin; /* swapins */ 77 unsigned v_swpout; /* swapouts */ 78 }; 79 80 #ifdef KERNEL 81 struct vmmeter cnt, rate, sum; 82 void vmmeter(); 83 void vmtotal(); 84 void loadav(fixpt_t *avg, int n); 85 #endif 86 87 /* systemwide totals computed every five seconds */ 88 struct vmtotal 89 { 90 short t_rq; /* length of the run queue */ 91 short t_dw; /* jobs in ``disk wait'' (neg priority) */ 92 short t_pw; /* jobs in page wait */ 93 short t_sl; /* jobs sleeping in core */ 94 short t_sw; /* swapped out runnable/short block jobs */ 95 long t_vm; /* total virtual memory */ 96 long t_avm; /* active virtual memory */ 97 long t_rm; /* total real memory in use */ 98 long t_arm; /* active real memory */ 99 long t_vmtxt; /* virtual memory used by text */ 100 long t_avmtxt; /* active virtual memory used by text */ 101 long t_rmtxt; /* real memory used by text */ 102 long t_armtxt; /* active real memory used by text */ 103 long t_free; /* free memory pages */ 104 }; 105 #ifdef KERNEL 106 struct vmtotal total; 107 #endif 108 109 /* 110 * Optional instrumentation. 111 */ 112 #ifdef PGINPROF 113 114 #define NDMON 128 115 #define NSMON 128 116 117 #define DRES 20 118 #define SRES 5 119 120 #define PMONMIN 20 121 #define PRES 50 122 #define NPMON 64 123 124 #define RMONMIN 130 125 #define RRES 5 126 #define NRMON 64 127 128 /* data and stack size distribution counters */ 129 unsigned int dmon[NDMON+1]; 130 unsigned int smon[NSMON+1]; 131 132 /* page in time distribution counters */ 133 unsigned int pmon[NPMON+2]; 134 135 /* reclaim time distribution counters */ 136 unsigned int rmon[NRMON+2]; 137 138 int pmonmin; 139 int pres; 140 int rmonmin; 141 int rres; 142 143 unsigned rectime; /* accumulator for reclaim times */ 144 unsigned pgintime; /* accumulator for page in times */ 145 #endif 146