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Annotation of researchv9/sys/h/vmsystm.h, revision 1.1.1.1

1.1       root        1: /*
                      2:  * Miscellaneous virtual memory subsystem variables and structures.
                      3:  */
                      4: 
                      5: #ifdef KERNEL
                      6: int    freemem;                /* remaining blocks of free memory */
                      7: int    avefree;                /* moving average of remaining free blocks */
                      8: int    avefree30;              /* 30 sec (avefree is 5 sec) moving average */
                      9: int    deficit;                /* estimate of needs of new swapped in procs */
                     10: int    nscan;                  /* number of scans in last second */
                     11: int    multprog;               /* current multiprogramming degree */
                     12: int    desscan;                /* desired pages scanned per second */
                     13: 
                     14: /* writable copies of tunables */
                     15: int    maxpgio;                /* max paging i/o per sec before start swaps */
                     16: int    maxslp;                 /* max sleep time before very swappable */
                     17: int    lotsfree;               /* max free before clock freezes */
                     18: int    minfree;                /* minimum free pages before swapping begins */
                     19: int    desfree;                /* no of pages to try to keep free via daemon */
                     20: int    saferss;                /* no pages not to steal; decays with slptime */
                     21: #endif
                     22: 
                     23: /*
                     24:  * Fork/vfork accounting.
                     25:  */
                     26: struct forkstat
                     27: {
                     28:        int     cntfork;
                     29:        int     cntvfork;
                     30:        int     sizfork;
                     31:        int     sizvfork;
                     32: };
                     33: #ifdef KERNEL
                     34: struct forkstat forkstat;
                     35: #endif
                     36: 
                     37: /*
                     38:  * Swap kind accounting.
                     39:  */
                     40: struct swptstat
                     41: {
                     42:        int     pteasy;         /* easy pt swaps */
                     43:        int     ptexpand;       /* pt expansion swaps */
                     44:        int     ptshrink;       /* pt shrinking swaps */
                     45:        int     ptpack;         /* pt swaps involving spte copying */
                     46: };
                     47: #ifdef KERNEL
                     48: struct swptstat swptstat;
                     49: #endif

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