sys/sys/vmmeter.h

/*-
 * Copyright (c) 1982, 1986 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.
 *
 *      from: @(#)vmmeter.h     7.3 (Berkeley) 5/5/91
 *      $Id$
 */

/*
 * Virtual memory related instrumentation
 */
struct vmmeter
{
#define v_first v_swtch
        unsigned v_swtch;       /* context switches */
        unsigned v_trap;        /* calls to trap */
        unsigned v_syscall;     /* calls to syscall() */
        unsigned v_intr;        /* device interrupts */
        unsigned v_soft;        /* software interrupts */
        unsigned v_pdma;        /* pseudo-dma interrupts */
        unsigned v_pswpin;      /* pages swapped in */
        unsigned v_pswpout;     /* pages swapped out */
        unsigned v_pgin;        /* pageins */
        unsigned v_pgout;       /* pageouts */
        unsigned v_pgpgin;      /* pages paged in */
        unsigned v_pgpgout;     /* pages paged out */
        unsigned v_intrans;     /* intransit blocking page faults */
        unsigned v_pgrec;       /* total page reclaims */
        unsigned v_xsfrec;      /* found in free list rather than on swapdev */
        unsigned v_xifrec;      /* found in free list rather than in filsys */
        unsigned v_exfod;       /* pages filled on demand from executables */
        unsigned v_zfod;        /* pages zero filled on demand */
        unsigned v_vrfod;       /* fills of pages mapped by vread() */
        unsigned v_nexfod;      /* number of exfod's created */
        unsigned v_nzfod;       /* number of zfod's created */
        unsigned v_nvrfod;      /* number of vrfod's created */
        unsigned v_pgfrec;      /* page reclaims from free list */
        unsigned v_faults;      /* total faults taken */
        unsigned v_scan;        /* scans in page out daemon */
        unsigned v_rev;         /* revolutions of the hand */
        unsigned v_seqfree;     /* pages taken from sequential programs */
        unsigned v_dfree;       /* pages freed by daemon */
        unsigned v_fastpgrec;   /* fast reclaims in locore */
#ifdef tahoe
        unsigned v_fpe;         /* floating point emulation traps */
        unsigned v_align;       /* alignment emulation traps */
#endif
#define v_last v_fastpgrec
        unsigned v_swpin;       /* swapins */
        unsigned v_swpout;      /* swapouts */
};
#ifdef KERNEL
struct  vmmeter cnt, rate, sum;
#endif

/* systemwide totals computed every five seconds */
struct vmtotal
{
        short   t_rq;           /* length of the run queue */
        short   t_dw;           /* jobs in ``disk wait'' (neg priority) */
        short   t_pw;           /* jobs in page wait */
        short   t_sl;           /* jobs sleeping in core */
        short   t_sw;           /* swapped out runnable/short block jobs */
        long    t_vm;           /* total virtual memory */
        long    t_avm;          /* active virtual memory */
        long    t_rm;           /* total real memory in use */
        long    t_arm;          /* active real memory */
        long    t_vmtxt;        /* virtual memory used by text */
        long    t_avmtxt;       /* active virtual memory used by text */
        long    t_rmtxt;        /* real memory used by text */
        long    t_armtxt;       /* active real memory used by text */
        long    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 */
unsigned int    dmon[NDMON+1];
unsigned int    smon[NSMON+1];

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

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

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

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