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Annotation of 43BSDTahoe/sys/h/vmmeter.h, revision 1.1.1.1

1.1       root        1: /*
                      2:  * Copyright (c) 1982, 1986 Regents of the University of California.
                      3:  * All rights reserved.  The Berkeley software License Agreement
                      4:  * specifies the terms and conditions for redistribution.
                      5:  *
                      6:  *     @(#)vmmeter.h   7.2 (Berkeley) 10/13/86
                      7:  */
                      8: 
                      9: /*
                     10:  * Virtual memory related instrumentation
                     11:  */
                     12: struct vmmeter
                     13: {
                     14: #define        v_first v_swtch
                     15:        unsigned v_swtch;       /* context switches */
                     16:        unsigned v_trap;        /* calls to trap */
                     17:        unsigned v_syscall;     /* calls to syscall() */
                     18:        unsigned v_intr;        /* device interrupts */
                     19:        unsigned v_soft;        /* software interrupts */
                     20:        unsigned v_pdma;        /* pseudo-dma interrupts */
                     21:        unsigned v_pswpin;      /* pages swapped in */
                     22:        unsigned v_pswpout;     /* pages swapped out */
                     23:        unsigned v_pgin;        /* pageins */
                     24:        unsigned v_pgout;       /* pageouts */
                     25:        unsigned v_pgpgin;      /* pages paged in */
                     26:        unsigned v_pgpgout;     /* pages paged out */
                     27:        unsigned v_intrans;     /* intransit blocking page faults */
                     28:        unsigned v_pgrec;       /* total page reclaims */
                     29:        unsigned v_xsfrec;      /* found in free list rather than on swapdev */
                     30:        unsigned v_xifrec;      /* found in free list rather than in filsys */
                     31:        unsigned v_exfod;       /* pages filled on demand from executables */
                     32:        unsigned v_zfod;        /* pages zero filled on demand */
                     33:        unsigned v_vrfod;       /* fills of pages mapped by vread() */
                     34:        unsigned v_nexfod;      /* number of exfod's created */
                     35:        unsigned v_nzfod;       /* number of zfod's created */
                     36:        unsigned v_nvrfod;      /* number of vrfod's created */
                     37:        unsigned v_pgfrec;      /* page reclaims from free list */
                     38:        unsigned v_faults;      /* total faults taken */
                     39:        unsigned v_scan;        /* scans in page out daemon */
                     40:        unsigned v_rev;         /* revolutions of the hand */
                     41:        unsigned v_seqfree;     /* pages taken from sequential programs */
                     42:        unsigned v_dfree;       /* pages freed by daemon */
                     43:        unsigned v_fastpgrec;   /* fast reclaims in locore */
                     44: #ifdef tahoe
                     45:        unsigned v_fpe;         /* floating point emulation traps */
                     46:        unsigned v_align;       /* alignment emulation traps */
                     47: #endif
                     48: #define        v_last v_fastpgrec
                     49:        unsigned v_swpin;       /* swapins */
                     50:        unsigned v_swpout;      /* swapouts */
                     51: };
                     52: #ifdef KERNEL
                     53: struct vmmeter cnt, rate, sum;
                     54: #endif
                     55: 
                     56: /* systemwide totals computed every five seconds */
                     57: struct vmtotal
                     58: {
                     59:        short   t_rq;           /* length of the run queue */
                     60:        short   t_dw;           /* jobs in ``disk wait'' (neg priority) */
                     61:        short   t_pw;           /* jobs in page wait */
                     62:        short   t_sl;           /* jobs sleeping in core */
                     63:        short   t_sw;           /* swapped out runnable/short block jobs */
                     64:        long    t_vm;           /* total virtual memory */
                     65:        long    t_avm;          /* active virtual memory */
                     66:        long    t_rm;           /* total real memory in use */
                     67:        long    t_arm;          /* active real memory */
                     68:        long    t_vmtxt;        /* virtual memory used by text */
                     69:        long    t_avmtxt;       /* active virtual memory used by text */
                     70:        long    t_rmtxt;        /* real memory used by text */
                     71:        long    t_armtxt;       /* active real memory used by text */
                     72:        long    t_free;         /* free memory pages */
                     73: };
                     74: #ifdef KERNEL
                     75: struct vmtotal total;
                     76: #endif
                     77: 
                     78: /*
                     79:  * Optional instrumentation.
                     80:  */
                     81: #ifdef PGINPROF
                     82: 
                     83: #define        NDMON   128
                     84: #define        NSMON   128
                     85: 
                     86: #define        DRES    20
                     87: #define        SRES    5
                     88: 
                     89: #define        PMONMIN 20
                     90: #define        PRES    50
                     91: #define        NPMON   64
                     92: 
                     93: #define        RMONMIN 130
                     94: #define        RRES    5
                     95: #define        NRMON   64
                     96: 
                     97: /* data and stack size distribution counters */
                     98: unsigned int   dmon[NDMON+1];
                     99: unsigned int   smon[NSMON+1];
                    100: 
                    101: /* page in time distribution counters */
                    102: unsigned int   pmon[NPMON+2];
                    103: 
                    104: /* reclaim time distribution counters */
                    105: unsigned int   rmon[NRMON+2];
                    106: 
                    107: int    pmonmin;
                    108: int    pres;
                    109: int    rmonmin;
                    110: int    rres;
                    111: 
                    112: unsigned rectime;              /* accumulator for reclaim times */
                    113: unsigned pgintime;             /* accumulator for page in times */
                    114: #endif

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