usr/src/sys/sys/vmmeter.h

/*-
 * 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. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *      This product includes software developed by the University of
 *      California, Berkeley and its contributors.
 * 4. 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
 */

/*
 * System wide statistics counters.
 */
struct vmmeter {
        /*
         * General system activity.
         */
        u_int v_swtch;          /* context switches */
        u_int v_trap;           /* calls to trap */
        u_int v_syscall;        /* calls to syscall() */
        u_int v_intr;           /* device interrupts */
        u_int v_soft;           /* software interrupts */
        u_int v_faults;         /* total faults taken */
        /*
         * Virtual memory activity.
         */
        u_int v_lookups;        /* object cache lookups */
        u_int v_hits;           /* object cache hits */
        u_int v_vm_faults;      /* number of address memory faults */
        u_int v_cow_faults;     /* number of copy-on-writes */
        u_int v_swpin;          /* swapins */
        u_int v_swpout;         /* swapouts */
        u_int v_pswpin;         /* pages swapped in */
        u_int v_pswpout;        /* pages swapped out */
        u_int v_pageins;        /* number of pageins */
        u_int v_pageouts;       /* number of pageouts */
        u_int v_pgpgin;         /* pages paged in */
        u_int v_pgpgout;        /* pages paged out */
        u_int v_intrans;        /* intransit blocking page faults */
        u_int v_reactivated;    /* number of pages reactivated from free list */
        u_int v_rev;            /* revolutions of the hand */
        u_int v_scan;           /* scans in page out daemon */
        u_int v_dfree;          /* pages freed by daemon */
        u_int v_pfree;          /* pages freed by exiting processes */
        u_int v_zfod;           /* pages zero filled on demand */
        u_int v_nzfod;          /* number of zfod's created */
        /*
         * Distribution of page usages.
         */
        u_int v_page_size;      /* page size in bytes */
        u_int v_kernel_pages;   /* number of pages in use by kernel */
        u_int v_free_target;    /* number of pages desired free */
        u_int v_free_min;       /* minimum number of pages desired free */
        u_int v_free_count;     /* number of pages free */
        u_int v_wire_count;     /* number of pages wired down */
        u_int v_active_count;   /* number of pages active */
        u_int v_inactive_target; /* number of pages desired inactive */
        u_int v_inactive_count;  /* number of pages inactive */
};
#ifdef KERNEL
struct  vmmeter cnt;
#endif

/* systemwide totals computed every five seconds */
struct vmtotal
{
        int16_t t_rq;           /* length of the run queue */
        int16_t t_dw;           /* jobs in ``disk wait'' (neg priority) */
        int16_t t_pw;           /* jobs in page wait */
        int16_t t_sl;           /* jobs sleeping in core */
        int16_t t_sw;           /* swapped out runnable/short block jobs */
        int32_t t_vm;           /* total virtual memory */
        int32_t t_avm;          /* active virtual memory */
        int32_t t_rm;           /* total real memory in use */
        int32_t t_arm;          /* active real memory */
        int32_t t_vmshr;        /* shared virtual memory */
        int32_t t_avmshr;       /* active shared virtual memory */
        int32_t t_rmshr;        /* shared real memory */
        int32_t t_armshr;       /* active shared real memory */
        int32_t t_free;         /* free memory pages */
};
#ifdef KERNEL
struct  vmtotal total;
#endif

/*
 * Optional instrumentation.
 */
#ifdef PGINPROF

#define NDMON   128
#define NSMON   128

#define DRES    20
#define SRES    5

#define PMONMIN 20
#define PRES    50
#define NPMON   64

#define RMONMIN 130
#define RRES    5
#define NRMON   64

/* data and stack size distribution counters */
u_int   dmon[NDMON+1];
u_int   smon[NSMON+1];

/* page in time distribution counters */
u_int   pmon[NPMON+2];

/* reclaim time distribution counters */
u_int   rmon[NRMON+2];

int     pmonmin;
int     pres;
int     rmonmin;
int     rres;

u_int rectime;          /* accumulator for reclaim times */
u_int pgintime;         /* accumulator for page in times */
#endif