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