FreeBSD/Linux Kernel Cross Reference
sys/sys/vmmeter.h

     /*      $OpenBSD: vmmeter.h,v 1.15 2016/07/27 14:44:59 tedu Exp $       */
     /*      $NetBSD: vmmeter.h,v 1.9 1995/03/26 20:25:04 jtc Exp $  */
     
     /*-
      * Copyright (c) 1982, 1986, 1993
      *      The Regents of the University of California.  All rights reserved.
      *
      * Redistribution and use in source and binary forms, with or without
      * modification, are permitted provided that the following conditions
     * are met:
     * 1. Redistributions of source code must retain the above copyright
     *    notice, this list of conditions and the following disclaimer.
     * 2. Redistributions in binary form must reproduce the above copyright
     *    notice, this list of conditions and the following disclaimer in the
     *    documentation and/or other materials provided with the distribution.
     * 3. Neither the name of the University nor the names of its contributors
     *    may be used to endorse or promote products derived from this software
     *    without specific prior written permission.
     *
     * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     * SUCH DAMAGE.
     *
     *      @(#)vmmeter.h   8.2 (Berkeley) 7/10/94
     */
    
    #ifndef __VMMETER_H__
    #define __VMMETER_H__
    
    /*
     * System wide statistics counters.  Look in <uvm/uvm_extern.h> for the
     * UVM equivalent.
     */
    
    /* systemwide totals computed every five seconds */
    struct vmtotal {
            u_int16_t t_rq;         /* length of the run queue */
            u_int16_t t_dw;         /* jobs in ``disk wait'' (neg priority) */
            u_int16_t t_pw;         /* jobs in page wait */
            u_int16_t t_sl;         /* jobs sleeping in core */
            u_int16_t t_sw;         /* swapped out runnable/short block jobs */
            u_int32_t t_vm;         /* total virtual memory */
            u_int32_t t_avm;        /* active virtual memory */
            u_int32_t t_rm;         /* total real memory in use */
            u_int32_t t_arm;        /* active real memory */
            u_int32_t t_vmshr;      /* shared virtual memory */
            u_int32_t t_avmshr;     /* active shared virtual memory */
            u_int32_t t_rmshr;      /* shared real memory */
            u_int32_t t_armshr;     /* active shared real memory */
            u_int32_t t_free;       /* free memory pages */
    };
    
    /*
     * Fork/vfork/__tfork accounting.
     */
    struct  forkstat {
            uint32_t        cntfork;        /* number of fork() calls */
            uint32_t        cntvfork;       /* number of vfork() calls */
            uint32_t        cnttfork;       /* number of __tfork() calls */
            uint32_t        cntkthread;     /* number of kernel threads created */
            uint64_t        sizfork;        /* VM pages affected by fork() */
            uint64_t        sizvfork;       /* VM pages affected by vfork() */
            uint64_t        siztfork;       /* VM pages affected by __tfork() */
            uint64_t        sizkthread;     /* VM pages affected by kernel threads */
    };
    
    /* These sysctl names are only really used by sysctl(8) */
    #define KERN_FORKSTAT_FORK              1
    #define KERN_FORKSTAT_VFORK             2
    #define KERN_FORKSTAT_TFORK             3
    #define KERN_FORKSTAT_KTHREAD           4
    #define KERN_FORKSTAT_SIZFORK           5
    #define KERN_FORKSTAT_SIZVFORK          6
    #define KERN_FORKSTAT_SIZTFORK          7
    #define KERN_FORKSTAT_SIZKTHREAD        8
    #define KERN_FORKSTAT_MAXID             9
    
    #define CTL_KERN_FORKSTAT_NAMES { \
            { 0, 0 }, \
            { "forks", CTLTYPE_INT }, \
            { "vforks", CTLTYPE_INT }, \
            { "tforks", CTLTYPE_INT }, \
            { "kthreads", CTLTYPE_INT }, \
            { "fork_pages", CTLTYPE_INT }, \
            { "vfork_pages", CTLTYPE_INT }, \
            { "tfork_pages", CTLTYPE_INT }, \
            { "kthread_pages", CTLTYPE_INT }, \
    }
    #endif /* __VMMETER_H__ */

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