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