Annotation of kernel/bsd/sys/vmmeter.h, revision 1.1.1.1

1.1       root        1: /*
                      2:  * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
                      3:  *
                      4:  * @APPLE_LICENSE_HEADER_START@
                      5:  * 
                      6:  * Portions Copyright (c) 1999 Apple Computer, Inc.  All Rights
                      7:  * Reserved.  This file contains Original Code and/or Modifications of
                      8:  * Original Code as defined in and that are subject to the Apple Public
                      9:  * Source License Version 1.1 (the "License").  You may not use this file
                     10:  * except in compliance with the License.  Please obtain a copy of the
                     11:  * License at http://www.apple.com/publicsource and read it before using
                     12:  * this file.
                     13:  * 
                     14:  * The Original Code and all software distributed under the License are
                     15:  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
                     16:  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
                     17:  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
                     18:  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
                     19:  * License for the specific language governing rights and limitations
                     20:  * under the License.
                     21:  * 
                     22:  * @APPLE_LICENSE_HEADER_END@
                     23:  */
                     24: 
                     25: /* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */
                     26: /*-
                     27:  * Copyright (c) 1982, 1986, 1993
                     28:  *     The Regents of the University of California.  All rights reserved.
                     29:  *
                     30:  * Redistribution and use in source and binary forms, with or without
                     31:  * modification, are permitted provided that the following conditions
                     32:  * are met:
                     33:  * 1. Redistributions of source code must retain the above copyright
                     34:  *    notice, this list of conditions and the following disclaimer.
                     35:  * 2. Redistributions in binary form must reproduce the above copyright
                     36:  *    notice, this list of conditions and the following disclaimer in the
                     37:  *    documentation and/or other materials provided with the distribution.
                     38:  * 3. All advertising materials mentioning features or use of this software
                     39:  *    must display the following acknowledgement:
                     40:  *     This product includes software developed by the University of
                     41:  *     California, Berkeley and its contributors.
                     42:  * 4. Neither the name of the University nor the names of its contributors
                     43:  *    may be used to endorse or promote products derived from this software
                     44:  *    without specific prior written permission.
                     45:  *
                     46:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
                     47:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
                     48:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
                     49:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
                     50:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
                     51:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
                     52:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
                     53:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
                     54:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
                     55:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
                     56:  * SUCH DAMAGE.
                     57:  *
                     58:  *     @(#)vmmeter.h   8.2 (Berkeley) 7/10/94
                     59:  */
                     60: 
                     61: #ifndef _SYS_VMMETER_H_
                     62: #define        _SYS_VMMETER_H_
                     63: 
                     64: /*
                     65:  * System wide statistics counters.
                     66:  */
                     67: struct vmmeter {
                     68:        /*
                     69:         * General system activity.
                     70:         */
                     71:        u_int v_swtch;          /* context switches */
                     72:        u_int v_trap;           /* calls to trap */
                     73:        u_int v_syscall;        /* calls to syscall() */
                     74:        u_int v_intr;           /* device interrupts */
                     75:        u_int v_soft;           /* software interrupts */
                     76:        u_int v_faults;         /* total faults taken */
                     77:        /*
                     78:         * Virtual memory activity.
                     79:         */
                     80:        u_int v_lookups;        /* object cache lookups */
                     81:        u_int v_hits;           /* object cache hits */
                     82:        u_int v_vm_faults;      /* number of address memory faults */
                     83:        u_int v_cow_faults;     /* number of copy-on-writes */
                     84:        u_int v_swpin;          /* swapins */
                     85:        u_int v_swpout;         /* swapouts */
                     86:        u_int v_pswpin;         /* pages swapped in */
                     87:        u_int v_pswpout;        /* pages swapped out */
                     88:        u_int v_pageins;        /* number of pageins */
                     89:        u_int v_pageouts;       /* number of pageouts */
                     90:        u_int v_pgpgin;         /* pages paged in */
                     91:        u_int v_pgpgout;        /* pages paged out */
                     92:        u_int v_intrans;        /* intransit blocking page faults */
                     93:        u_int v_reactivated;    /* number of pages reactivated from free list */
                     94:        u_int v_rev;            /* revolutions of the hand */
                     95:        u_int v_scan;           /* scans in page out daemon */
                     96:        u_int v_dfree;          /* pages freed by daemon */
                     97:        u_int v_pfree;          /* pages freed by exiting processes */
                     98:        u_int v_zfod;           /* pages zero filled on demand */
                     99:        u_int v_nzfod;          /* number of zfod's created */
                    100:        /*
                    101:         * Distribution of page usages.
                    102:         */
                    103:        u_int v_page_size;      /* page size in bytes */
                    104:        u_int v_kernel_pages;   /* number of pages in use by kernel */
                    105:        u_int v_free_target;    /* number of pages desired free */
                    106:        u_int v_free_min;       /* minimum number of pages desired free */
                    107:        u_int v_free_count;     /* number of pages free */
                    108:        u_int v_wire_count;     /* number of pages wired down */
                    109:        u_int v_active_count;   /* number of pages active */
                    110:        u_int v_inactive_target; /* number of pages desired inactive */
                    111:        u_int v_inactive_count;  /* number of pages inactive */
                    112: };
                    113: #ifdef _KERNEL
                    114: extern struct  vmmeter cnt;
                    115: #endif
                    116: 
                    117: /* systemwide totals computed every five seconds */
                    118: struct vmtotal
                    119: {
                    120:        int16_t t_rq;           /* length of the run queue */
                    121:        int16_t t_dw;           /* jobs in ``disk wait'' (neg priority) */
                    122:        int16_t t_pw;           /* jobs in page wait */
                    123:        int16_t t_sl;           /* jobs sleeping in core */
                    124:        int16_t t_sw;           /* swapped out runnable/short block jobs */
                    125:        int32_t t_vm;           /* total virtual memory */
                    126:        int32_t t_avm;          /* active virtual memory */
                    127:        int32_t t_rm;           /* total real memory in use */
                    128:        int32_t t_arm;          /* active real memory */
                    129:        int32_t t_vmshr;        /* shared virtual memory */
                    130:        int32_t t_avmshr;       /* active shared virtual memory */
                    131:        int32_t t_rmshr;        /* shared real memory */
                    132:        int32_t t_armshr;       /* active shared real memory */
                    133:        int32_t t_free;         /* free memory pages */
                    134: };
                    135: #ifdef _KERNEL
                    136: extern struct  vmtotal total;
                    137: #endif
                    138: 
                    139: #endif /* !_SYS_VMMETER_H_ */

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