The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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

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    1 /*      $NetBSD: vmmeter.h,v 1.17 2003/08/07 16:34:22 agc Exp $ */
    2 
    3 /*-
    4  * Copyright (c) 1982, 1986, 1993
    5  *      The Regents of the University of California.  All rights reserved.
    6  *
    7  * Redistribution and use in source and binary forms, with or without
    8  * modification, are permitted provided that the following conditions
    9  * are met:
   10  * 1. Redistributions of source code must retain the above copyright
   11  *    notice, this list of conditions and the following disclaimer.
   12  * 2. Redistributions in binary form must reproduce the above copyright
   13  *    notice, this list of conditions and the following disclaimer in the
   14  *    documentation and/or other materials provided with the distribution.
   15  * 3. Neither the name of the University nor the names of its contributors
   16  *    may be used to endorse or promote products derived from this software
   17  *    without specific prior written permission.
   18  *
   19  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
   20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   22  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
   23  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   29  * SUCH DAMAGE.
   30  *
   31  *      @(#)vmmeter.h   8.2 (Berkeley) 7/10/94
   32  */
   33 
   34 #ifndef _SYS_VMMETER_H_
   35 #define _SYS_VMMETER_H_
   36 
   37 /* systemwide totals computed every five seconds */
   38 struct vmtotal
   39 {
   40         int16_t t_rq;           /* length of the run queue */
   41         int16_t t_dw;           /* jobs in ``disk wait'' (neg priority) */
   42         int16_t t_pw;           /* jobs in page wait */
   43         int16_t t_sl;           /* jobs sleeping in core */
   44         int16_t t_sw;           /* swapped out runnable/short block jobs */
   45         int32_t t_vm;           /* total virtual memory */
   46         int32_t t_avm;          /* active virtual memory */
   47         int32_t t_rm;           /* total real memory in use */
   48         int32_t t_arm;          /* active real memory */
   49         int32_t t_vmshr;        /* shared virtual memory */
   50         int32_t t_avmshr;       /* active shared virtual memory */
   51         int32_t t_rmshr;        /* shared real memory */
   52         int32_t t_armshr;       /* active shared real memory */
   53         int32_t t_free;         /* free memory pages */
   54 };
   55 
   56 /*
   57  * Optional instrumentation.
   58  */
   59 #ifdef PGINPROF
   60 
   61 #define NDMON   128
   62 #define NSMON   128
   63 
   64 #define DRES    20
   65 #define SRES    5
   66 
   67 #define PMONMIN 20
   68 #define PRES    50
   69 #define NPMON   64
   70 
   71 #define RMONMIN 130
   72 #define RRES    5
   73 #define NRMON   64
   74 
   75 /* data and stack size distribution counters */
   76 u_int   dmon[NDMON+1];
   77 u_int   smon[NSMON+1];
   78 
   79 /* page in time distribution counters */
   80 u_int   pmon[NPMON+2];
   81 
   82 /* reclaim time distribution counters */
   83 u_int   rmon[NRMON+2];
   84 
   85 int     pmonmin;
   86 int     pres;
   87 int     rmonmin;
   88 int     rres;
   89 
   90 u_int rectime;          /* accumulator for reclaim times */
   91 u_int pgintime;         /* accumulator for page in times */
   92 #endif /* PGINPROF */
   93 
   94 #endif /* !_SYS_VMMETER_H_ */

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