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Annotation of researchv10dc/man/man8/vmstat.8, revision 1.1.1.1

1.1       root        1: .TH VMSTAT 8
                      2: .CT 1 sa_mortals
                      3: .SH NAME
                      4: vmstat \- report virtual memory statistics
                      5: .SH SYNOPSIS
                      6: .B vmstat
                      7: [
                      8: .B -st
                      9: ]
                     10: [
                     11: .I interval
                     12: [
                     13: .I count
                     14: ]
                     15: ]
                     16: .SH DESCRIPTION
                     17: .I Vmstat
                     18: reports statistics about certain system activity.
                     19: .ig x
                     20: Option
                     21: .B -f
                     22: reports on
                     23: .I forks
                     24: since system startup and the number of pages of virtual memory involved.
                     25: .x
                     26: Option
                     27: .B -s
                     28: prints totals for miscellaneous events
                     29: since the last boot.
                     30: Option
                     31: .B -t
                     32: reports on paging events.
                     33: .PP
                     34: In the absence of other options, the optional
                     35: .I interval
                     36: argument causes
                     37: .I vmstat
                     38: to report once each
                     39: .I interval
                     40: seconds, repeated
                     41: .I count
                     42: times or forever.
                     43: .PP
                     44: The default format fields are:
                     45: .TF faults
                     46: .TP
                     47: .B procs
                     48: information about numbers of processes in various states:
                     49: .RS
                     50: .PD 0
                     51: .TP
                     52: .B r
                     53: in run queue
                     54: .TP
                     55: .B b
                     56: blocked for resources (I/O, paging, etc.)
                     57: .TP
                     58: .B w
                     59: runnable or short sleeper (< 20 secs) but swapped
                     60: .RE
                     61: .PD
                     62: .TP
                     63: .B memory
                     64: use of virtual and real memory:
                     65: .RS
                     66: .PD 0
                     67: .TP
                     68: .B avm
                     69: number of
                     70: pages belonging to processes that have run
                     71: in the last 20 seconds
                     72: .TP
                     73: .B fre
                     74: size of memory free list
                     75: .RE
                     76: .PD
                     77: .TP
                     78: .B page
                     79: paging activity,
                     80: averaged each five seconds, in units per second:
                     81: .RS
                     82: .PD 0
                     83: .TP
                     84: .B re
                     85: page reclaims (simulating reference bits)
                     86: .TP
                     87: .B at
                     88: text pages recovered from memory
                     89: .TP
                     90: .B pi
                     91: page-in events
                     92: .TP
                     93: .B po
                     94: page-out events
                     95: .TP
                     96: .B fr
                     97: pages freed per second
                     98: .TP
                     99: .B de
                    100: anticipated short term memory shortfall
                    101: .TP
                    102: .B sr
                    103: scan rate: pageout daemon rpm
                    104: .RE
                    105: .PD
                    106: .TP
                    107: .B faults
                    108: trap rates, averaged each five seconds, in units per second:
                    109: .RS
                    110: .PD 0
                    111: .TP
                    112: .B sy
                    113: system calls
                    114: .TP
                    115: .B cs
                    116: process context switches
                    117: .RE
                    118: .PD
                    119: .TP
                    120: .B cpu
                    121: percentage use of CPU time:
                    122: .RS
                    123: .PD 0
                    124: .TP
                    125: .B us
                    126: user time, both normal and low priority
                    127: .TP
                    128: .B sy
                    129: system time
                    130: .TP
                    131: .B id
                    132: cpu idle time
                    133: .TP
                    134: .B st
                    135: stream queue processing time
                    136: .RE
                    137: .PD
                    138: .SH FILES
                    139: .F /dev/kmem
                    140: .br
                    141: .F /unix
                    142: .SH BUGS
                    143: This program is never up to date.

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