* Virtual memory related instrumentation
unsigned v_swtch
; /* context switches */
unsigned v_trap
; /* calls to trap */
unsigned v_syscall
; /* calls to syscall() */
unsigned v_intr
; /* device interrupts */
unsigned v_pdma
; /* pseudo-dma interrupts */
unsigned v_pswpin
; /* pages swapped in */
unsigned v_pswpout
; /* pages swapped out */
unsigned v_pgin
; /* pageins */
unsigned v_pgout
; /* pageouts */
unsigned v_pgpgin
; /* pages paged in */
unsigned v_pgpgout
; /* pages paged out */
unsigned v_intrans
; /* intransit blocking page faults */
unsigned v_pgrec
; /* total page reclaims */
unsigned v_xsfrec
; /* found in free list rather than on swapdev */
unsigned v_xifrec
; /* found in free list rather than in filsys */
unsigned v_exfod
; /* pages filled on demand from executables */
unsigned v_zfod
; /* pages zero filled on demand */
unsigned v_vrfod
; /* fills of pages mapped by vread() */
unsigned v_nexfod
; /* number of exfod's created */
unsigned v_nzfod
; /* number of zfod's created */
unsigned v_nvrfod
; /* number of vrfod's created */
unsigned v_pgfrec
; /* page reclaims from free list */
unsigned v_faults
; /* total faults taken */
unsigned v_scan
; /* scans in page out daemon */
unsigned v_rev
; /* revolutions of the hand */
unsigned v_seqfree
; /* pages taken from sequential programs */
unsigned v_dfree
; /* pages freed by daemon */
unsigned v_swpin
; /* swapins */
unsigned v_swpout
; /* swapouts */
struct vmmeter cnt
, rate
, sum
;
/* systemwide totals computed every five seconds */
short t_rq
; /* length of the run queue */
short t_dw
; /* jobs in ``disk wait'' (neg priority) */
short t_pw
; /* jobs in page wait */
short t_sl
; /* jobs sleeping in core */
short t_sw
; /* swapped out runnable/short block jobs */
int t_vm
; /* total virtual memory */
int t_avm
; /* active virtual memory */
short t_rm
; /* total real memory in use */
short t_arm
; /* active real memory */
int t_vmtxt
; /* virtual memory used by text */
int t_avmtxt
; /* active virtual memory used by text */
short t_rmtxt
; /* real memory used by text */
short t_armtxt
; /* active real memory used by text */
short t_free
; /* free memory pages */
* Optional instrumentation.
/* data and stack size distribution counters */
unsigned int dmon
[NDMON
+1];
unsigned int smon
[NSMON
+1];
/* page in time distribution counters */
unsigned int pmon
[NPMON
+2];
/* reclaim time distribution counters */
unsigned int rmon
[NRMON
+2];
unsigned rectime
; /* accumulator for reclaim times */
unsigned pgintime
; /* accumulator for page in times */