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Annotation of Net2/sys/vmmeter.h, revision 1.1

1.1     ! root        1: /*-
        !             2:  * Copyright (c) 1982, 1986 The Regents of the University of California.
        !             3:  * All rights reserved.
        !             4:  *
        !             5:  * Redistribution and use in source and binary forms, with or without
        !             6:  * modification, are permitted provided that the following conditions
        !             7:  * are met:
        !             8:  * 1. Redistributions of source code must retain the above copyright
        !             9:  *    notice, this list of conditions and the following disclaimer.
        !            10:  * 2. Redistributions in binary form must reproduce the above copyright
        !            11:  *    notice, this list of conditions and the following disclaimer in the
        !            12:  *    documentation and/or other materials provided with the distribution.
        !            13:  * 3. All advertising materials mentioning features or use of this software
        !            14:  *    must display the following acknowledgement:
        !            15:  *     This product includes software developed by the University of
        !            16:  *     California, Berkeley and its contributors.
        !            17:  * 4. Neither the name of the University nor the names of its contributors
        !            18:  *    may be used to endorse or promote products derived from this software
        !            19:  *    without specific prior written permission.
        !            20:  *
        !            21:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
        !            22:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
        !            23:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
        !            24:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
        !            25:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
        !            26:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
        !            27:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
        !            28:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
        !            29:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
        !            30:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
        !            31:  * SUCH DAMAGE.
        !            32:  *
        !            33:  *     @(#)vmmeter.h   7.3 (Berkeley) 5/5/91
        !            34:  */
        !            35: 
        !            36: /*
        !            37:  * Virtual memory related instrumentation
        !            38:  */
        !            39: struct vmmeter
        !            40: {
        !            41: #define        v_first v_swtch
        !            42:        unsigned v_swtch;       /* context switches */
        !            43:        unsigned v_trap;        /* calls to trap */
        !            44:        unsigned v_syscall;     /* calls to syscall() */
        !            45:        unsigned v_intr;        /* device interrupts */
        !            46:        unsigned v_soft;        /* software interrupts */
        !            47:        unsigned v_pdma;        /* pseudo-dma interrupts */
        !            48:        unsigned v_pswpin;      /* pages swapped in */
        !            49:        unsigned v_pswpout;     /* pages swapped out */
        !            50:        unsigned v_pgin;        /* pageins */
        !            51:        unsigned v_pgout;       /* pageouts */
        !            52:        unsigned v_pgpgin;      /* pages paged in */
        !            53:        unsigned v_pgpgout;     /* pages paged out */
        !            54:        unsigned v_intrans;     /* intransit blocking page faults */
        !            55:        unsigned v_pgrec;       /* total page reclaims */
        !            56:        unsigned v_xsfrec;      /* found in free list rather than on swapdev */
        !            57:        unsigned v_xifrec;      /* found in free list rather than in filsys */
        !            58:        unsigned v_exfod;       /* pages filled on demand from executables */
        !            59:        unsigned v_zfod;        /* pages zero filled on demand */
        !            60:        unsigned v_vrfod;       /* fills of pages mapped by vread() */
        !            61:        unsigned v_nexfod;      /* number of exfod's created */
        !            62:        unsigned v_nzfod;       /* number of zfod's created */
        !            63:        unsigned v_nvrfod;      /* number of vrfod's created */
        !            64:        unsigned v_pgfrec;      /* page reclaims from free list */
        !            65:        unsigned v_faults;      /* total faults taken */
        !            66:        unsigned v_scan;        /* scans in page out daemon */
        !            67:        unsigned v_rev;         /* revolutions of the hand */
        !            68:        unsigned v_seqfree;     /* pages taken from sequential programs */
        !            69:        unsigned v_dfree;       /* pages freed by daemon */
        !            70:        unsigned v_fastpgrec;   /* fast reclaims in locore */
        !            71: #ifdef tahoe
        !            72:        unsigned v_fpe;         /* floating point emulation traps */
        !            73:        unsigned v_align;       /* alignment emulation traps */
        !            74: #endif
        !            75: #define        v_last v_fastpgrec
        !            76:        unsigned v_swpin;       /* swapins */
        !            77:        unsigned v_swpout;      /* swapouts */
        !            78: };
        !            79: #ifdef KERNEL
        !            80: struct vmmeter cnt, rate, sum;
        !            81: #endif
        !            82: 
        !            83: /* systemwide totals computed every five seconds */
        !            84: struct vmtotal
        !            85: {
        !            86:        short   t_rq;           /* length of the run queue */
        !            87:        short   t_dw;           /* jobs in ``disk wait'' (neg priority) */
        !            88:        short   t_pw;           /* jobs in page wait */
        !            89:        short   t_sl;           /* jobs sleeping in core */
        !            90:        short   t_sw;           /* swapped out runnable/short block jobs */
        !            91:        long    t_vm;           /* total virtual memory */
        !            92:        long    t_avm;          /* active virtual memory */
        !            93:        long    t_rm;           /* total real memory in use */
        !            94:        long    t_arm;          /* active real memory */
        !            95:        long    t_vmtxt;        /* virtual memory used by text */
        !            96:        long    t_avmtxt;       /* active virtual memory used by text */
        !            97:        long    t_rmtxt;        /* real memory used by text */
        !            98:        long    t_armtxt;       /* active real memory used by text */
        !            99:        long    t_free;         /* free memory pages */
        !           100: };
        !           101: #ifdef KERNEL
        !           102: struct vmtotal total;
        !           103: #endif
        !           104: 
        !           105: /*
        !           106:  * Optional instrumentation.
        !           107:  */
        !           108: #ifdef PGINPROF
        !           109: 
        !           110: #define        NDMON   128
        !           111: #define        NSMON   128
        !           112: 
        !           113: #define        DRES    20
        !           114: #define        SRES    5
        !           115: 
        !           116: #define        PMONMIN 20
        !           117: #define        PRES    50
        !           118: #define        NPMON   64
        !           119: 
        !           120: #define        RMONMIN 130
        !           121: #define        RRES    5
        !           122: #define        NRMON   64
        !           123: 
        !           124: /* data and stack size distribution counters */
        !           125: unsigned int   dmon[NDMON+1];
        !           126: unsigned int   smon[NSMON+1];
        !           127: 
        !           128: /* page in time distribution counters */
        !           129: unsigned int   pmon[NPMON+2];
        !           130: 
        !           131: /* reclaim time distribution counters */
        !           132: unsigned int   rmon[NRMON+2];
        !           133: 
        !           134: int    pmonmin;
        !           135: int    pres;
        !           136: int    rmonmin;
        !           137: int    rres;
        !           138: 
        !           139: unsigned rectime;              /* accumulator for reclaim times */
        !           140: unsigned pgintime;             /* accumulator for page in times */
        !           141: #endif

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