vmstat subcommand

The vmstat subcommand displays virtual memory statistics.

Format

vmstat

Parameters

No parameters.

Other

No aliases.

Examples

The following is an example of how to use the vmstat subcommand:

KDB(0)> vmstat

VMM Statistics:

page faults              (pgexct)   : 00105695
page reclaims            (pgrclm)   : 00000000
lockmisses               (lockexct) : 00000000
backtracks               (backtrks) : 0000C2A2
pages paged in           (pageins)  : 00004824
pages paged out          (pageouts) : 0000CEFA
paging space page ins    (pgspgins) : 00000000
paging space page outs   (pgspgouts): 00000000
start I/Os               (numsios)  : 0000E251
iodones                  (numiodone): 0000CFAA
zero filled pages        (zerofills): 0007764B
executable filled pages  (exfills)  : 00000E77
pages examined by clock  (scans)    : 00000000
clock hand cycles        (cycles)   : 00000000
page steals              (pgsteals) : 00000000
free frame waits         (freewts)  : 00000000
extend XPT waits         (extendwts): 00000000
pending I/O waits        (pendiowts): 000028C7

VMM Statistics:                

total virtual pgs        (numvpages): 000000000000BA03
pages in use for wseg   (numwseguse): 000000000000881F
pages in use for pseg   (numpseguse): 0000000000002D1F
pages in use for clseg (numclseguse): 0000000000001D79
pages pinned for wseg   (numwsegpin): 00000000000037D8
pages pinned for pseg   (numpsegpin): 0000000000000000
pages pinned for clseg (numclsegpin): 0000000000000000
ping-pongs: source => alias (pings) : 00000000
ping-pongs: alias => source (pongs) : 00000000
ping-pongs: alias => alias  (pangs) : 00000000
ping-pongs: alias page del  (dpongs): 00000000
ping-pongs: alias page write(wpongs): 00000000
ping-pong cache flushes     (cachef): 00000000
ping-pong cache invalidates (cachei): 00000000
hardware large page size (lgpg_size): 00000000
total num of large pages  (lgpg_cnt): 0000000000000000
num free large pages   (lgpg_numfrb): 0000000000000000
large page high water cnt  (lgpg_hi): 0000000000000000
large page in-use cnt   (lgpg_inuse): 0000000000000000
num reserved sids      (numspecsegs): 0000000000000000
num free reserved sids (numspecfree): 0000000000000000
reserved sids hi-water  (specsegshi): 0000000000000000
success mem guards (memgrd_succ_pgs): 00000000
failed mem guards  (memgrd_fail_pgs): 00000000
KDB(0)> 

VMM Memory Limits:

Total available memory (4K frames)  : 00080000
 4K number of frames                : 000799F9
 4K frames pinned                   : 00005F6F
 4K system pinnable frames remaining: 0005B559
 4K user pinnable frames remaining  : 00058E6E

Free paging space (in 4K blocks)    : 0001FDA6
Paging space SIGDANGER level        : 00001000
Paging space SIGKILL level          : 00000400