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